Instructables: exploring - technology - electronics - voltage http://www.instructables.com Thu, 26 May 2016 00:17:01 PDT BLOX v1.01 How to design seven segment display driver chip on VLSI consept for the first time!? http://www.instructables.com/id/How-to-Design-Seven-Segment-Display-Driver-Chip-on/
How to design seven segment display driver chip on VLSI consept for the first time!? - More DIY How To Projects]]> http://cdn.instructables.com/FEY/6BLG/IOLU7SWC/FEY6BLGIOLU7SWC.SQUARE2.jpg http://cdn.instructables.com/FEY/6BLG/IOLU7SWC/FEY6BLGIOLU7SWC.SQUARE.jpg http://cdn.instructables.com/FEY/6BLG/IOLU7SWC/FEY6BLGIOLU7SWC.SMALL.jpg Bay Yolal Today, I am going to show you how to design a seven segment display electronic component's driver which is similar with 7447 chip. This project was I did when in my university's last year, thanks to my lecturer, I learned how to desing a chip with Tanner Tools program. With Tanner Eda Tools program,...
By: Bay Yolal

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Tue, 24 May 2016 14:50:24 PDT
High voltage power supply http://www.instructables.com/id/High-Voltage-Power-Supply-1/
High voltage power supply - More DIY How To Projects]]> http://cdn.instructables.com/F69/JZWM/IMUTQKFU/F69JZWMIMUTQKFU.SQUARE2.jpg http://cdn.instructables.com/F69/JZWM/IMUTQKFU/F69JZWMIMUTQKFU.SQUARE.jpg http://cdn.instructables.com/F69/JZWM/IMUTQKFU/F69JZWMIMUTQKFU.SMALL.jpg CrtSuznik While working with electronics, chances are sooner or later, you'll want or need a high voltage power supply.This is a version you can make at home in a short amount of time.Of course you should be careful while working with high voltage and electricity in general.If you indeed hurt yourself in anyw...
By: CrtSuznik

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Mon, 11 Apr 2016 06:10:45 PDT
Portable Adjustable Mini Powersupply http://www.instructables.com/id/Portable-Adjustable-Mini-Powersupply/
Portable Adjustable Mini Powersupply - More DIY How To Projects]]> http://cdn.instructables.com/FNL/UZW2/ILIAWKRY/FNLUZW2ILIAWKRY.SQUARE2.jpg http://cdn.instructables.com/FNL/UZW2/ILIAWKRY/FNLUZW2ILIAWKRY.SQUARE.jpg http://cdn.instructables.com/FNL/UZW2/ILIAWKRY/FNLUZW2ILIAWKRY.SMALL.jpg Mixed Output A BIG HELLO! and welcome to Mixed Outputs first instructable.As most of my project involve electronics of some sort, having a good power supply is essential to be able to meet the demand of different power requirements. So I built me a bench-top power supply from an old ATX power supply Unit (PSU) t...
By: Mixed Output

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Tue, 8 Mar 2016 03:52:02 PST
Voltage, Current and Resistance http://www.instructables.com/id/Voltage-Current-and-Resistance/
Voltage, Current and Resistance - More DIY How To Projects]]> http://cdn.instructables.com/FW5/PGUM/IJLZX3RT/FW5PGUMIJLZX3RT.SQUARE2.jpg http://cdn.instructables.com/FW5/PGUM/IJLZX3RT/FW5PGUMIJLZX3RT.SQUARE.jpg http://cdn.instructables.com/FW5/PGUM/IJLZX3RT/FW5PGUMIJLZX3RT.SMALL.jpg magkopian In this instructable I will attempt to teach you about the three most fundamental things in electronics, the current, the voltage and the resistance.Before we get started please keep in mind that I've tried to exclude as much about the physics that are involved into the subject as I could. This was ...
By: magkopian

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Tue, 19 Jan 2016 15:23:26 PST
Non-Contact Voltage Detector http://www.instructables.com/id/Non-Contact-Voltage-Detector-1/
Non-Contact Voltage Detector - More DIY How To Projects]]> http://cdn.instructables.com/FGA/NPXX/IJD79ASB/FGANPXXIJD79ASB.SQUARE2.jpg http://cdn.instructables.com/FGA/NPXX/IJD79ASB/FGANPXXIJD79ASB.SQUARE.jpg http://cdn.instructables.com/FGA/NPXX/IJD79ASB/FGANPXXIJD79ASB.SMALL.jpg MehtlliK Non-contact voltage detector is a handy device which is useful for indicating if there current running in the circuit or system.it consist of three transistors which acts as a switch in the circuit which amplify the current detected and a parallel connection of resistor in a increasing manner from 2...
By: MehtlliK

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Wed, 13 Jan 2016 22:33:44 PST
TEG / Peltier Plate Test Rig with Temperature / Voltage / Current Logger http://www.instructables.com/id/TEG-Peltier-Plate-Rig-With-Temperature-Voltage-Cur/
TEG / Peltier Plate Test Rig with Temperature / Voltage / Current Logger - More DIY How To Projects]]> http://cdn.instructables.com/FUD/0VVI/IIHTNW2K/FUD0VVIIIHTNW2K.SQUARE2.jpg http://cdn.instructables.com/FUD/0VVI/IIHTNW2K/FUD0VVIIIHTNW2K.SQUARE.jpg http://cdn.instructables.com/FUD/0VVI/IIHTNW2K/FUD0VVIIIHTNW2K.SMALL.jpg niebz This rig was made up to log two temperatures and the corresponding voltage/current output from a TEG plate.The two thermocouples will measure the difference in temperature and log it with the real time voltage and current outputs. The purpose of this is to confirm and verify data with a mathematical...
By: niebz

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Tue, 22 Dec 2015 17:06:02 PST
Variable voltage supply http://www.instructables.com/id/Variable-voltage-supply/
Variable voltage supply - More DIY How To Projects]]> http://cdn.instructables.com/FKZ/6SDX/II30X9BJ/FKZ6SDXII30X9BJ.SQUARE2.jpg http://cdn.instructables.com/FKZ/6SDX/II30X9BJ/FKZ6SDXII30X9BJ.SQUARE.jpg http://cdn.instructables.com/FKZ/6SDX/II30X9BJ/FKZ6SDXII30X9BJ.SMALL.jpg rishabh8721 Its a simple and handy 'LM317 voltage regulator' based variable voltage supply. Along with some capacitors and resistors. Materials required Electrical components:- 1. LM317 voltage regulator 2. Variable resistor (10k ohm in my case) 3. R2 resistance (R2 value in step 2) 4. 1 uF capacitor 5. 0.1 ...
By: rishabh8721

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Sun, 6 Dec 2015 07:41:45 PST
Big Sparks With Flyback Transformer (it shocked me) http://www.instructables.com/id/Big-Sparks-With-Flyback-Transformer/
Big Sparks With Flyback Transformer (it shocked me) - More DIY How To Projects]]> http://cdn.instructables.com/F9F/294R/IHT0U5JS/F9F294RIHT0U5JS.SQUARE2.jpg http://cdn.instructables.com/F9F/294R/IHT0U5JS/F9F294RIHT0U5JS.SQUARE.jpg http://cdn.instructables.com/F9F/294R/IHT0U5JS/F9F294RIHT0U5JS.SMALL.jpg Testas.T In this video i show my homemade flyback driver, which makes big arcs. Now i was using my powerful power supply because it draws about 8 Amps. In internet everywhere i read about this driver it uses 2 Amps, 24-30V but it draws 8A at 12v. So if i would rise voltage up to 24V amps draw would climb hig...
By: Testas.T

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Thu, 3 Dec 2015 07:40:53 PST
Home wound High Voltage Transformer http://www.instructables.com/id/Home-wound-High-Voltage-Transformer/
Home wound High Voltage Transformer - More DIY How To Projects]]> http://cdn.instructables.com/FT1/E4IN/IHP4JBQ0/FT1E4INIHP4JBQ0.SQUARE2.jpg http://cdn.instructables.com/FT1/E4IN/IHP4JBQ0/FT1E4INIHP4JBQ0.SQUARE.jpg http://cdn.instructables.com/FT1/E4IN/IHP4JBQ0/FT1E4INIHP4JBQ0.SMALL.jpg bba3 Extremely dangerous, but fun to look at . Draws 50 - 65 amps from the mains when ballasted and 80 - 100 when not ballasted. Obtain enamelled copper wire 18 AWG For overwind8 AWG for primaryFor 230 VAC input, we are going to need 230 + 770 turns. One turn is about 40 cm, so get at least 400 meter...
By: bba3

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Thu, 15 Oct 2015 13:13:54 PDT
Toy Motors http://www.instructables.com/id/Toy-Motors/
Toy Motors - More DIY How To Projects]]> http://cdn.instructables.com/F66/MGTN/IFF8AUUT/F66MGTNIFF8AUUT.SQUARE2.jpg http://cdn.instructables.com/F66/MGTN/IFF8AUUT/F66MGTNIFF8AUUT.SQUARE.jpg http://cdn.instructables.com/F66/MGTN/IFF8AUUT/F66MGTNIFF8AUUT.SMALL.jpg KunalK6 Motors? what do you know about them? a shaft that has permanent magnets around and copper coil wounded, which rotates when current passes through it. yes not only Current 'I' but the potential difference 'V' is also important for a motor to rotate. This implies it's power that is important. For nay ...
By: KunalK6

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Tue, 6 Oct 2015 12:30:50 PDT
LM317 Variable Power Supply http://www.instructables.com/id/LM317-Variable-Power-Supply/
LM317 Variable Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/F3B/SRIE/IEOPAH0A/F3BSRIEIEOPAH0A.SQUARE2.jpg http://cdn.instructables.com/F3B/SRIE/IEOPAH0A/F3BSRIEIEOPAH0A.SQUARE.jpg http://cdn.instructables.com/F3B/SRIE/IEOPAH0A/F3BSRIEIEOPAH0A.SMALL.jpg Khaleel123 The LM317 variable power supply is very popular and works well in many situations. It can take in up to 40 volts and vary the output voltage from 1.2 volts - 37 volts. While providing up to 1.5 amps of current with a proper heat sink installed. Its important to note the larger the difference between...
By: Khaleel123

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Thu, 17 Sep 2015 14:42:25 PDT
What's Inside? #5: 1250W LG Microwave? +Magnetron! (Salvaging Electronic Components) http://www.instructables.com/id/Whats-Inside-1250W-LG-Microwave-Magnetron/
What's Inside? #5: 1250W LG Microwave? +Magnetron! (Salvaging Electronic Components) - More DIY How To Projects]]> http://cdn.instructables.com/FX4/OCA3/IEOPASNU/FX4OCA3IEOPASNU.SQUARE2.jpg http://cdn.instructables.com/FX4/OCA3/IEOPASNU/FX4OCA3IEOPASNU.SQUARE.jpg http://cdn.instructables.com/FX4/OCA3/IEOPASNU/FX4OCA3IEOPASNU.SMALL.jpg Yonatan24 This is a microwave that I found on the street near my house.Lets take it apart!!!WARNING: Taking apart electronic devices is VERY DANGEROUS and especially a microwave!Please remember that I am a trained professional idiot at taking apart electronic devices, DO NOT take apart any kind of electronic ...
By: Yonatan24

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Wed, 16 Sep 2015 07:07:13 PDT
Bench PSU Power Supply from Old ATX with Arduino and LCD Monitor http://www.instructables.com/id/Bench-PSU-from-Old-ATX-with-LCD-Monitor/
Bench PSU Power Supply from Old ATX with Arduino and LCD Monitor - More DIY How To Projects]]> http://cdn.instructables.com/F6P/J76X/IDRLHAZT/F6PJ76XIDRLHAZT.SQUARE2.jpg http://cdn.instructables.com/F6P/J76X/IDRLHAZT/F6PJ76XIDRLHAZT.SQUARE.jpg http://cdn.instructables.com/F6P/J76X/IDRLHAZT/F6PJ76XIDRLHAZT.SMALL.jpg l19bal Hello all and welcome to my first Instructable.I've always wanted a bench PSU for easy access to a power source, and something that I can rely on when working on various projects. I wanted a PSU that: • provides 12v, 5v, and 3.3v outputs • provides variable voltage outputs • has an LCD monitor ...
By: l19bal

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Sat, 29 Aug 2015 12:37:51 PDT
Linear Adjustable Power Supply http://www.instructables.com/id/Linear-Adjustable-Power-Supply/
Linear Adjustable Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/FSP/5CYH/IDQHQFP6/FSP5CYHIDQHQFP6.SQUARE2.jpg http://cdn.instructables.com/FSP/5CYH/IDQHQFP6/FSP5CYHIDQHQFP6.SQUARE.jpg http://cdn.instructables.com/FSP/5CYH/IDQHQFP6/FSP5CYHIDQHQFP6.SMALL.jpg chienline I bought a power supply with 3 to 12 volts variable voltage selector last year. But guess what, it never work as expected. Any voltage I chose, it threw out 12 volts. So long it was laying in its box until I decided to mod it last month.. er.. actually it has been months until I finish this iBle :DI...
By: chienline

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Mon, 24 Aug 2015 23:26:00 PDT
Super recycled benchtop power supply http://www.instructables.com/id/Super-recycled-benchtop-power-supply/
Super recycled benchtop power supply - More DIY How To Projects]]> http://cdn.instructables.com/FWJ/XI13/IDON7XPP/FWJXI13IDON7XPP.SQUARE2.jpg http://cdn.instructables.com/FWJ/XI13/IDON7XPP/FWJXI13IDON7XPP.SQUARE.jpg http://cdn.instructables.com/FWJ/XI13/IDON7XPP/FWJXI13IDON7XPP.SMALL.jpg juaspo Working with electronics you are bound to need different voltage sources for your projects. So having a good and reliable benchtop power supply is way, way, waaay easier and more convenient than having to combine batteries in different ways or trying to find a power adaptor that can deliver just tha...
By: juaspo

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Sun, 23 Aug 2015 19:25:47 PDT
How to hook up voltage divider http://www.instructables.com/id/How-to-make-voltage-divider/
How to hook up voltage divider - More DIY How To Projects]]> http://cdn.instructables.com/F46/0OO9/ICRHR8T9/F460OO9ICRHR8T9.SQUARE2.jpg http://cdn.instructables.com/F46/0OO9/ICRHR8T9/F460OO9ICRHR8T9.SQUARE.jpg http://cdn.instructables.com/F46/0OO9/ICRHR8T9/F460OO9ICRHR8T9.SMALL.jpg McOc Hi all.In this simple tutorial i will show you how to set up votage divider whith 2 resistors.I use 2 100Ohm resistor so i should get voltage divided in half.So lets get started. Add resistors We need to add resistors in series to get voltage drop on each,that is purpose of voltage divider. Mes...
By: McOc

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Wed, 29 Jul 2015 09:50:54 PDT
Voltage doubler http://www.instructables.com/id/Voltage-doubler/
Voltage doubler - More DIY How To Projects]]> http://cdn.instructables.com/F76/UGMT/IAXA5ZE0/F76UGMTIAXA5ZE0.SQUARE2.jpg http://cdn.instructables.com/F76/UGMT/IAXA5ZE0/F76UGMTIAXA5ZE0.SQUARE.jpg http://cdn.instructables.com/F76/UGMT/IAXA5ZE0/F76UGMTIAXA5ZE0.SMALL.jpg kathirava let's have a view on circuit diagram components required 1) Diode 22) Capacitors 23) Connecting wires4) Bread board5) Multimeter6) ac source 12 v Description give the connection as per the circuit diagram, the two violet wires are used to check the output. Testing We got the doubled output....
By: kathirava

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Mon, 15 Jun 2015 01:53:13 PDT
Benchtop DC Power Supply http://www.instructables.com/id/Benchtop-DC-Power-Supply/
Benchtop DC Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/FNP/1BSA/IASCSDS9/FNP1BSAIASCSDS9.SQUARE2.jpg http://cdn.instructables.com/FNP/1BSA/IASCSDS9/FNP1BSAIASCSDS9.SQUARE.jpg http://cdn.instructables.com/FNP/1BSA/IASCSDS9/FNP1BSAIASCSDS9.SMALL.jpg lawrence.esterlen This has been done probably hundreds of times here on Instructables, but I think that this is a great starter project for anyone interested in getting into electronics as a hobby. I am a U.S. Navy Electronics Technician, and even with costly test equipment at my disposal, I still consider this cheap...
By: lawrence.esterlen

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Thu, 11 Jun 2015 16:57:37 PDT
How to use a potentiometer as a voltage divider. http://www.instructables.com/id/How-to-use-a-potentiometer-as-a-voltage-divider/
How to use a potentiometer as a voltage divider. - More DIY How To Projects]]> http://cdn.instructables.com/FB7/KFHH/I9OSR9SJ/FB7KFHHI9OSR9SJ.SQUARE2.jpg http://cdn.instructables.com/FB7/KFHH/I9OSR9SJ/FB7KFHHI9OSR9SJ.SQUARE.jpg http://cdn.instructables.com/FB7/KFHH/I9OSR9SJ/FB7KFHHI9OSR9SJ.SMALL.jpg bweaver6 Hello and WelcomeThis Instructable is going to be short and sweet. I would like to share with you the power of potentiometers. A simple component that can be used as a voltage divider. You may be saying to yourself, "Duh, everyone knows that!" Well, unfortunately, this simple concept escaped many of...
By: bweaver6

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Thu, 14 May 2015 19:46:42 PDT
How to fabricate a lunch box into a dual 0-12VDC power supply. http://www.instructables.com/id/How-to-fabricate-a-lunch-box-into-a-dual-0-12VDC-p/
How to fabricate a lunch box into a dual 0-12VDC power supply. - More DIY How To Projects]]> http://cdn.instructables.com/FGJ/20FI/I9UDIVRX/FGJ20FII9UDIVRX.SQUARE2.jpg http://cdn.instructables.com/FGJ/20FI/I9UDIVRX/FGJ20FII9UDIVRX.SQUARE.jpg http://cdn.instructables.com/FGJ/20FI/I9UDIVRX/FGJ20FII9UDIVRX.SMALL.jpg bweaver6 Preface:Hello and welcome to my Instructable.I am a first year Electronic Engineering student and was given the opportunity to build a power supply. I was immediately fascinated but wanted to make more than a run of mill project. My original idea was to use a cigar box and pack as much into a small ...
By: bweaver6

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Tue, 12 May 2015 17:52:18 PDT
Common Emitter Amplifier http://www.instructables.com/id/Common-Emitter-Amplifier/
Common Emitter Amplifier - More DIY How To Projects]]> http://cdn.instructables.com/FC5/JLI9/I7YLIPM9/FC5JLI9I7YLIPM9.SQUARE2.jpg http://cdn.instructables.com/FC5/JLI9/I7YLIPM9/FC5JLI9I7YLIPM9.SQUARE.jpg http://cdn.instructables.com/FC5/JLI9/I7YLIPM9/FC5JLI9I7YLIPM9.SMALL.jpg Tom Neumiller A Common Emitter Amplifier is a remarkably simple, but also very useful, type of transistor circuit. The core purpose of this type of circuit is the ability to amplify a voltage applied to the base of a capacitor. This amplification has many useful applications, particularly in acoustics...
By: Tom Neumiller

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Wed, 1 Apr 2015 14:09:47 PDT
AC to DC Power Using a Full Wave Rectifier http://www.instructables.com/id/AC-to-DC-Power-Using-a-Full-Wave-Rectifier/
AC to DC Power Using a Full Wave Rectifier - More DIY How To Projects]]> http://cdn.instructables.com/FSJ/OGXP/I7RGMO54/FSJOGXPI7RGMO54.SQUARE2.jpg http://cdn.instructables.com/FSJ/OGXP/I7RGMO54/FSJOGXPI7RGMO54.SQUARE.jpg http://cdn.instructables.com/FSJ/OGXP/I7RGMO54/FSJOGXPI7RGMO54.SMALL.jpg Neel.Adhiraj AC is used to transmit power over long distances. The power we get from the electrical outlets in our home is AC power. However since most modern electrical appliances use DC at some level, we need to know how to effectively convert AC power to DC power. We can do this using a circuit known as a ful...
By: Neel.Adhiraj

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Mon, 30 Mar 2015 00:30:13 PDT
Homemade 0-25V 3.5A Variable Power Supply (even charges Batteries) http://www.instructables.com/id/Homemade-0-25V-35A-Variable-Power-Supply-even-char/
Homemade 0-25V 3.5A Variable Power Supply (even charges Batteries) - More DIY How To Projects]]> http://cdn.instructables.com/F15/5Z95/I6NI8KYS/F155Z95I6NI8KYS.SQUARE2.jpg http://cdn.instructables.com/F15/5Z95/I6NI8KYS/F155Z95I6NI8KYS.SQUARE.jpg http://cdn.instructables.com/F15/5Z95/I6NI8KYS/F155Z95I6NI8KYS.SMALL.jpg ConnorP3 This Power supply can charge batteries or just power things. It goes to 25V and 3.5 Amps. It is variable and has an indicator light Connectors These are alligator clip connecting to the power Supply Parts and Components Simple Layout Top Top view Both Solder Points Solder in this seq...
By: ConnorP3

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Sat, 28 Feb 2015 19:07:49 PST
How Electricity & Electronics Work: All you need to know guide to getting started http://www.instructables.com/id/Electronicselectricity-basics-All-you-need-to-know/
How Electricity & Electronics Work: All you need to know guide to getting started - More DIY How To Projects]]> http://cdn.instructables.com/F5N/PM06/I64XHML6/F5NPM06I64XHML6.SQUARE2.jpg http://cdn.instructables.com/F5N/PM06/I64XHML6/F5NPM06I64XHML6.SQUARE.jpg http://cdn.instructables.com/F5N/PM06/I64XHML6/F5NPM06I64XHML6.SMALL.jpg -max- Have you started a project, and found that you will need knowledge of how electricity works, and practical circuit design? Or you are involved with a science project and plan on demonstrating electricity and electronics? Then you have found the right place! To start things off, we will cover the bas...
By: -max-

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Fri, 13 Feb 2015 10:15:51 PST
Cheap Voltage Regulated Joule Thief power supply/charger http://www.instructables.com/id/Cheap-Voltage-Regulated-Joule-Thief-power-supplych/
Cheap Voltage Regulated Joule Thief power supply/charger - More DIY How To Projects]]> http://cdn.instructables.com/FGO/QXXK/I5THVYDD/FGOQXXKI5THVYDD.SQUARE2.jpg http://cdn.instructables.com/FGO/QXXK/I5THVYDD/FGOQXXKI5THVYDD.SQUARE.jpg http://cdn.instructables.com/FGO/QXXK/I5THVYDD/FGOQXXKI5THVYDD.SMALL.jpg Imetomi Maybe you know the very popular Joule Thief circuit, that usually is used to drive LEDs, but this instructable will show you how to regulate the output voltage up to 30 volts. You can regulate example to 5 volts that is enough to charge a phone or any USB device. It charges slowly but works. Or you ...
By: Imetomi

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Sat, 7 Feb 2015 07:00:36 PST
2A Variable DC Power Supply for $7 http://www.instructables.com/id/2A-Variable-DC-Power-Supply-for-5/
2A Variable DC Power Supply for $7 - More DIY How To Projects]]> http://cdn.instructables.com/FI2/DDUP/I2P3TCSR/FI2DDUPI2P3TCSR.SQUARE2.jpg http://cdn.instructables.com/FI2/DDUP/I2P3TCSR/FI2DDUPI2P3TCSR.SQUARE.jpg http://cdn.instructables.com/FI2/DDUP/I2P3TCSR/FI2DDUPI2P3TCSR.SMALL.jpg tgvoss I have seen others building electronic variable power supplies from scratch with lots of parts. It usually ends up being over $20. This can be built in half the time and half the price. 4 - 40 VDC Input 1.25 - 37 VDC OutputDC - DC Step Down - $4.91 12V Power Supply - $2.18 Connector Leads - $3.8...
By: tgvoss

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Thu, 20 Nov 2014 11:18:04 PST
Using the HY1803D Power Supply http://www.instructables.com/id/Using-the-HY1803D-Power-Supply/
Using the HY1803D Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/FVV/7HDI/I1WHFQMX/FVV7HDII1WHFQMX.SQUARE2.jpg http://cdn.instructables.com/FVV/7HDI/I1WHFQMX/FVV7HDII1WHFQMX.SQUARE.jpg http://cdn.instructables.com/FVV/7HDI/I1WHFQMX/FVV7HDII1WHFQMX.SMALL.jpg SLOMakerSpace The HY1803D is a reasonably priced power supply that will provide suitable power for many low-power electronics projects. From the manual, the specifications are:Voltage Output: 0 V-18 V DC ± 1% in increments of centivolts (0.01 V)Current Output: 0A - 3A ± 2% in increments of centiamps (0.01 A)Opera...
By: SLOMakerSpace

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Thu, 30 Oct 2014 16:25:14 PDT
Li - Ion battery level indicator http://www.instructables.com/id/Li-Ion-battery-level-indicator/
Li - Ion battery level indicator - More DIY How To Projects]]> http://cdn.instructables.com/FD5/USRL/I1IQB3YZ/FD5USRLI1IQB3YZ.SQUARE2.jpg http://cdn.instructables.com/FD5/USRL/I1IQB3YZ/FD5USRLI1IQB3YZ.SQUARE.jpg http://cdn.instructables.com/FD5/USRL/I1IQB3YZ/FD5USRLI1IQB3YZ.SMALL.jpg Osvaldas Are you looking for a simple circuit to measure your Lithium Ion single cell charging and discharging level? Here is one chip circuit, powered up from the same Lithium Ion battery you want to measure.This circuit is design to measure 3.7V rechargeable batteries level. 4.2V - 100%; 4V - 80%; 3.8V - ...
By: Osvaldas

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Tue, 21 Oct 2014 13:28:44 PDT
Penny Battery http://www.instructables.com/id/Penny-Battery-1/
Penny Battery - More DIY How To Projects]]> http://cdn.instructables.com/FG1/2DTL/HXEZ6XEQ/FG12DTLHXEZ6XEQ.SQUARE2.jpg http://cdn.instructables.com/FG1/2DTL/HXEZ6XEQ/FG12DTLHXEZ6XEQ.SQUARE.jpg http://cdn.instructables.com/FG1/2DTL/HXEZ6XEQ/FG12DTLHXEZ6XEQ.SMALL.jpg l33tn00b Hello and welcome to my first instructable!!! I want to start posting all my projects on here so I figured I would post one of my favorites, the penny battery!!!This is a great project to know for those into survival. What I have done to expand this project is hook my homemade penny battery to a j...
By: l33tn00b

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Mon, 6 Oct 2014 15:17:14 PDT
Easy high voltage fly swatter mod http://www.instructables.com/id/Easy-high-voltage-fly-swatter-mod/
Easy high voltage fly swatter mod - More DIY How To Projects]]> http://cdn.instructables.com/FMO/EGS4/I0HYNJO6/FMOEGS4I0HYNJO6.SQUARE2.jpg http://cdn.instructables.com/FMO/EGS4/I0HYNJO6/FMOEGS4I0HYNJO6.SQUARE.jpg http://cdn.instructables.com/FMO/EGS4/I0HYNJO6/FMOEGS4I0HYNJO6.SMALL.jpg The Freak Caution - High voltage. Keep away from children and pets. I am not responsible for any form of harm done to yourself or others. So, having said that, I always wanted to adapt a fly swatter to something more serious. Standard electric fly swatters handle what I think to be about 600 to 1000V, this mo...
By: The Freak

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Sat, 20 Sep 2014 07:28:54 PDT
Sealed battery box 12v/24v using a DPDT switch http://www.instructables.com/id/Sealed-battery-box-12v24v-with-a-switch/
Sealed battery box 12v/24v using a DPDT switch - More DIY How To Projects]]> http://cdn.instructables.com/F8Y/6BDP/HZ3YBNPN/F8Y6BDPHZ3YBNPN.SQUARE2.jpg http://cdn.instructables.com/F8Y/6BDP/HZ3YBNPN/F8Y6BDPHZ3YBNPN.SQUARE.jpg http://cdn.instructables.com/F8Y/6BDP/HZ3YBNPN/F8Y6BDPHZ3YBNPN.SMALL.jpg RehabIsForQuitters In this instructable I will show you how to build a sealed battery box. It's not completely water tight but rain is no problem for it. Since building this I have found it to be a great mobile power supply for many things even running power tools while camping where there are no electric hookups.The ...
By: RehabIsForQuitters

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Thu, 21 Aug 2014 12:49:03 PDT
Coilgun http://www.instructables.com/id/Coil-Gun/
Coilgun - More DIY How To Projects]]> http://cdn.instructables.com/F62/BR15/HY7392YG/F62BR15HY7392YG.SQUARE2.jpg http://cdn.instructables.com/F62/BR15/HY7392YG/F62BR15HY7392YG.SQUARE.jpg http://cdn.instructables.com/F62/BR15/HY7392YG/F62BR15HY7392YG.SMALL.jpg Djnix I came up with my own design so I'm not going to tell you how to do yours. I only ask that you cover any exposed wires to prevent electrical shock. The voltage is high enough to Hurt you badly. Materials PVC Charging circuitProjectileThyristor WiresTrigger switchHot glue400v capacitors (I used 82...
By: Djnix

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Sat, 26 Jul 2014 10:55:45 PDT
AC to DC Conversion http://www.instructables.com/id/AC-to-DC-Conversion/
AC to DC Conversion - More DIY How To Projects]]> http://cdn.instructables.com/FCH/4OHQ/HX504N4Z/FCH4OHQHX504N4Z.SQUARE2.jpg http://cdn.instructables.com/FCH/4OHQ/HX504N4Z/FCH4OHQHX504N4Z.SQUARE.jpg http://cdn.instructables.com/FCH/4OHQ/HX504N4Z/FCH4OHQHX504N4Z.SMALL.jpg brmarcum Every once in a while I come up with an idea for a circuit or device that has applications where a battery may not be the best or most convenient option for a power supply. One example is the Motion Activated AC Switch that I built. Since I was wanting to have the switch open a relay to allow AC cur...
By: brmarcum

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Tue, 1 Jul 2014 14:24:04 PDT
Battery Tester and Charger http://www.instructables.com/id/Battery-Tester-and-Charger/
Battery Tester and Charger - More DIY How To Projects]]> http://cdn.instructables.com/FS4/U6D1/HWLCVCMH/FS4U6D1HWLCVCMH.SQUARE2.jpg http://cdn.instructables.com/FS4/U6D1/HWLCVCMH/FS4U6D1HWLCVCMH.SQUARE.jpg http://cdn.instructables.com/FS4/U6D1/HWLCVCMH/FS4U6D1HWLCVCMH.SMALL.jpg Khaleel123 The Objective of this project is to test batteries to find out if they hold a significant charge and are still usable. I recently had a laptop battery fail and after taking it apart I realized I needed a quick way to test each individual 3.7 volt lithium ion cell. As a result this is what I came up ...
By: Khaleel123

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Wed, 18 Jun 2014 22:19:57 PDT
Basic 5 Volt Power Supply http://www.instructables.com/id/Basic-5-Volt-Power-Supply/
Basic 5 Volt Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/F96/CS1K/HW37LLBA/F96CS1KHW37LLBA.SQUARE2.jpg http://cdn.instructables.com/F96/CS1K/HW37LLBA/F96CS1KHW37LLBA.SQUARE.jpg http://cdn.instructables.com/F96/CS1K/HW37LLBA/F96CS1KHW37LLBA.SMALL.jpg JayconSystems The first part of any electronics project, is a power supply. Some projects use the USB port on your computer; others use a cheap wall adapter. Some are battery powered, and others are solar. With all these different options, how does one power their electronics project? Let us show you!It’s pretty ...
By: JayconSystems

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Fri, 6 Jun 2014 08:58:54 PDT
555 Voltage Doubler http://www.instructables.com/id/555-Voltage-Doubler/
555 Voltage Doubler - More DIY How To Projects]]> http://cdn.instructables.com/FGE/A6FU/HVTWGWNK/FGEA6FUHVTWGWNK.SQUARE2.jpg http://cdn.instructables.com/FGE/A6FU/HVTWGWNK/FGEA6FUHVTWGWNK.SQUARE.jpg http://cdn.instructables.com/FGE/A6FU/HVTWGWNK/FGEA6FUHVTWGWNK.SMALL.jpg MrSirLRD Batteries are a great way to add portable power to your project/device but often you require higher voltages than a single (or multiple) batteries can provide, this usually means connecting many batteries together to get the required voltage (which could add unwanted weight).This Instructable uses a...
By: MrSirLRD

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Fri, 30 May 2014 19:29:34 PDT
Variable Bench Power Supply with Active Cooling http://www.instructables.com/id/Variable-Bench-Power-Supply-with-Active-Cooling/
Variable Bench Power Supply with Active Cooling - More DIY How To Projects]]> http://cdn.instructables.com/FS6/NGQ2/HUIS4UP2/FS6NGQ2HUIS4UP2.SQUARE2.jpg http://cdn.instructables.com/FS6/NGQ2/HUIS4UP2/FS6NGQ2HUIS4UP2.SQUARE.jpg http://cdn.instructables.com/FS6/NGQ2/HUIS4UP2/FS6NGQ2HUIS4UP2.SMALL.jpg Khaleel123 I needed a new bench power supply that would be variable and inexpensive. I decided to reuse an old laptop power adapter that was not being used anymore and it gave me a nice filtered 19 volts DC. I then made up the circuit for the LM350 Variable voltage regulator on a breadboard to make sure it wor...
By: Khaleel123

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Sun, 27 Apr 2014 15:16:18 PDT
Rail/Coil Gun http://www.instructables.com/id/RailCoil-Gun/
Rail/Coil Gun - More DIY How To Projects]]> http://cdn.instructables.com/F7J/M8JJ/HU842LOQ/F7JM8JJHU842LOQ.SQUARE2.jpg http://cdn.instructables.com/F7J/M8JJ/HU842LOQ/F7JM8JJHU842LOQ.SQUARE.jpg http://cdn.instructables.com/F7J/M8JJ/HU842LOQ/F7JM8JJHU842LOQ.SMALL.jpg Sam Patton I was told that I couldn't buy a BB gun, so instead I made my own version of a railgun that fires 320 Joules in a split second. I was able to pierce my garage door, but I had the switch blow up on me so I'm waiting to install the new high voltage switch. WARNING THIS IS NOT LIKE A BB GUN. Used com...
By: Sam Patton

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Sun, 20 Apr 2014 11:41:37 PDT
100 000 volt flyback setup http://www.instructables.com/id/100-000-volt-flyback-setup/
100 000 volt flyback setup - More DIY How To Projects]]> http://cdn.instructables.com/FS9/PONJ/HR0AU83Y/FS9PONJHR0AU83Y.SQUARE2.jpg http://cdn.instructables.com/FS9/PONJ/HR0AU83Y/FS9PONJHR0AU83Y.SQUARE.jpg http://cdn.instructables.com/FS9/PONJ/HR0AU83Y/FS9PONJHR0AU83Y.SMALL.jpg Magnetron so i am one of those people who want's high voltage but don't have the buck's to buy one of those expensive neon sign transformers so i stumbled on to one of this guy's idea on how to build a simple flyback driver with a cfl ligt i hope he will forgive me for kind of steeling this idea but with his ...
By: Magnetron

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Mon, 3 Feb 2014 06:45:19 PST
The Best and Easiest Way to Drive your Flyback http://www.instructables.com/id/The-Best-and-Easiest-Way-to-Drive-your-Flyback/
The Best and Easiest Way to Drive your Flyback - More DIY How To Projects]]> http://cdn.instructables.com/F7C/A40S/HR3EF6RK/F7CA40SHR3EF6RK.SQUARE2.jpg http://cdn.instructables.com/F7C/A40S/HR3EF6RK/F7CA40SHR3EF6RK.SQUARE.jpg http://cdn.instructables.com/F7C/A40S/HR3EF6RK/F7CA40SHR3EF6RK.SMALL.jpg corbonzo In this instructable I'll be showing you a super simply way to drive your flybacks! because i know for a fact that I'm tired of transistor type drivers and even the ZVS's are a pain. So get ready for this because I'm sure it'll make you excited as it did for me! heres my video tutorial for some mo...
By: corbonzo

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Fri, 31 Jan 2014 20:32:23 PST
add a digital meter to your old analogical variable PSU http://www.instructables.com/id/add-a-digital-meter-to-your-old-analogical-variabl/
add a digital meter to your old analogical variable PSU - More DIY How To Projects]]> http://cdn.instructables.com/FF2/3TAP/HQKMJBA9/FF23TAPHQKMJBA9.SQUARE2.jpg http://cdn.instructables.com/FF2/3TAP/HQKMJBA9/FF23TAPHQKMJBA9.SQUARE.jpg http://cdn.instructables.com/FF2/3TAP/HQKMJBA9/FF23TAPHQKMJBA9.SMALL.jpg andrea biffi My 20 years old variable power supply is beginning to have some imprecision in measuring voltage with his analogical meter. Then I decided to add a digital meter, with which I can know exactly the voltage supplied. Since these digital meters are very cheap this is a good solution for many devices ot...
By: andrea biffi

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Sat, 18 Jan 2014 07:25:25 PST
Index Finger Voltmeter [a way to meter DC voltage without holding your meter] http://www.instructables.com/id/Finger-Voltmeter-A-way-to-meter-DC-voltage-without/
Index Finger Voltmeter [a way to meter DC voltage without holding your meter] - More DIY How To Projects]]> http://cdn.instructables.com/FW5/1JE4/HNXRU2DY/FW51JE4HNXRU2DY.SQUARE2.jpg http://cdn.instructables.com/FW5/1JE4/HNXRU2DY/FW51JE4HNXRU2DY.SQUARE.jpg http://cdn.instructables.com/FW5/1JE4/HNXRU2DY/FW51JE4HNXRU2DY.SMALL.jpg limbo This is an idea to help low voltage (DC) field technicians like me.   The problem: When you are working in strange places to like basements, storage rooms, or when you are using a ladder to access a distant (LOW VOLTAGE) equipment  holding the multimeter and the probes is a pain in the... :-)  Well...
By: limbo

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Thu, 14 Nov 2013 12:17:46 PST
Create A Negative Power Supply For An Analog Circuit http://www.instructables.com/id/Create-A-Negative-Power-Supply-For-An-Analog-Circu/
Create A Negative Power Supply For An Analog Circuit - More DIY How To Projects]]> http://cdn.instructables.com/FSA/RUYT/HNRLM3QI/FSARUYTHNRLM3QI.SQUARE2.jpg http://cdn.instructables.com/FSA/RUYT/HNRLM3QI/FSARUYTHNRLM3QI.SQUARE.jpg http://cdn.instructables.com/FSA/RUYT/HNRLM3QI/FSARUYTHNRLM3QI.SMALL.jpg mdtevans Many analog circuits, for example opamps, require a negative power supply rail. e.g. 5V, 0V and -5V. This instructable describes how to create a -5V supply from a 5V and 0V only supply. This is particularly useful if you are using power supplied by a microcontroller board like the arduino. Use a...
By: mdtevans

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Sat, 9 Nov 2013 06:51:58 PST
How to create +/- voltage using one power supply http://www.instructables.com/id/How-to-create-voltage-using-one-power-supply/
How to create +/- voltage using one power supply - More DIY How To Projects]]> http://cdn.instructables.com/FGK/K425/HM33VJCT/FGKK425HM33VJCT.SQUARE2.jpg http://cdn.instructables.com/FGK/K425/HM33VJCT/FGKK425HM33VJCT.SQUARE.jpg http://cdn.instructables.com/FGK/K425/HM33VJCT/FGKK425HM33VJCT.SMALL.jpg Andrewsheen In analog synthesis, to generate almost any signal with op amps, it is necessary to have positive and negative voltages. This allows the op amp to generate a signal that spans positive and negative voltage values. this process is pretty simple when using 2 different power supplies, but to create it...
By: Andrewsheen

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Sat, 28 Sep 2013 10:11:56 PDT
(This instructable is dead.) Singing Arc Plasma Speaker project - revision 2.0! http://www.instructables.com/id/Singing-Arc-Plasma-Speaker-project-revision-20/
(This instructable is dead.) Singing Arc Plasma Speaker project - revision 2.0! - More DIY How To Projects]]> http://cdn.instructables.com/F87/7B2U/GZHJPEVE/F877B2UGZHJPEVE.SQUARE2.jpg http://cdn.instructables.com/F87/7B2U/GZHJPEVE/F877B2UGZHJPEVE.SQUARE.jpg http://cdn.instructables.com/F87/7B2U/GZHJPEVE/F877B2UGZHJPEVE.SMALL.jpg -max- UPDATE: This instructable will not ever be finished, as I have moved back to the 555 circuit with some major changes, and I incorporated this 'able into that one. Click here to see the finished one!Everything below is OUTDATED information, and has been modified and ported over to the older 555 versi...
By: -max-

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Tue, 30 Jul 2013 20:13:25 PDT
DIY Electronic Cigarette http://www.instructables.com/id/DIY-Electronic-Cigarette/
DIY Electronic Cigarette - More DIY How To Projects]]> http://cdn.instructables.com/F0Z/RJXD/HINNZCRG/F0ZRJXDHINNZCRG.SQUARE2.jpg http://cdn.instructables.com/F0Z/RJXD/HINNZCRG/F0ZRJXDHINNZCRG.SQUARE.jpg http://cdn.instructables.com/F0Z/RJXD/HINNZCRG/F0ZRJXDHINNZCRG.SMALL.jpg MrRedBeard This project is currently being updated. Feel free to get your comments and suggestions in so that the feedback can be used in my next build.There is a problem with the circuit. Please see the comment from Zanderist below. I have updated the schematic in the next step. So when I wanted to quit smok...
By: MrRedBeard

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Fri, 5 Jul 2013 11:42:26 PDT
Smartphone Charger Powered by Fire http://www.instructables.com/id/Battery-Charger-Powered-by-Fire/
Smartphone Charger Powered by Fire - More DIY How To Projects]]> http://cdn.instructables.com/F12/HOAD/HFPTEVTJ/F12HOADHFPTEVTJ.SQUARE2.jpg http://cdn.instructables.com/F12/HOAD/HFPTEVTJ/F12HOADHFPTEVTJ.SQUARE.jpg http://cdn.instructables.com/F12/HOAD/HFPTEVTJ/F12HOADHFPTEVTJ.SMALL.jpg Joohansson Portable, Compact and Adjustable ThermoElectric Emergency Generator. Background: The reason for this project was to solve a problem I have. I sometimes do several days of hiking/backpacking in the wild and I always bring a smartphone with GPS and maybe other electronics. They need electricity...
By: Joohansson

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Wed, 1 May 2013 11:03:17 PDT
Adjustable Voltage Step-up (0.7-5.5V to 2.7-5.5V) http://www.instructables.com/id/Adjustable-Voltage-Step-up-07-55V-to-27-55V/
Adjustable Voltage Step-up (0.7-5.5V to 2.7-5.5V) - More DIY How To Projects]]> http://cdn.instructables.com/F2K/RFE1/HFPT9HVQ/F2KRFE1HFPT9HVQ.SQUARE2.jpg http://cdn.instructables.com/F2K/RFE1/HFPT9HVQ/F2KRFE1HFPT9HVQ.SQUARE.jpg http://cdn.instructables.com/F2K/RFE1/HFPT9HVQ/F2KRFE1HFPT9HVQ.SMALL.jpg Joohansson Introduction: A voltage step-up is a circuit that increases the voltage. It can be AC/AC, AC/DC, DC/AC or DC/DC. This voltage step-up is a DC/DC adjustable voltage regulator. Usually a voltage regulator is fed by a higher input than output voltage, for example 9V IN to 5V OUT. This circuit will take...
By: Joohansson

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Wed, 1 May 2013 11:00:03 PDT
ATX Desktop Computer Power Supply http://www.instructables.com/id/ATX-Desktop-Computer-Power-Supply/
ATX Desktop Computer Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/F1W/OZ9O/HFD1E91T/F1WOZ9OHFD1E91T.SQUARE2.jpg http://cdn.instructables.com/F1W/OZ9O/HFD1E91T/F1WOZ9OHFD1E91T.SQUARE.jpg http://cdn.instructables.com/F1W/OZ9O/HFD1E91T/F1WOZ9OHFD1E91T.SMALL.jpg Kante Tech So I realize that after viewing multiple instructables and creating multiple projects I was using up batteries like crazy. I decided to wire up my own power supply after doing a quick search. My power is capable of your standard voltage of 3.3, 5, and 12. This setup and process that it took to creat...
By: Kante Tech

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Tue, 16 Apr 2013 21:26:37 PDT
Voltage Amplifier http://www.instructables.com/id/Voltage-Amplifier/
Voltage Amplifier - More DIY How To Projects]]> http://cdn.instructables.com/F45/G0IP/HEXS6SJJ/F45G0IPHEXS6SJJ.SQUARE2.jpg http://cdn.instructables.com/F45/G0IP/HEXS6SJJ/F45G0IPHEXS6SJJ.SQUARE.jpg http://cdn.instructables.com/F45/G0IP/HEXS6SJJ/F45G0IPHEXS6SJJ.SMALL.jpg CarolynCross A voltage amplifier in simplest form is any circuit that puts out a higher voltage than the input voltage.  When you are forced to work with a set amount of voltage, these amplifiers are commonly used to increase the voltage and thus the amount of power coming out of a circuit. This is useful for re...
By: CarolynCross

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Mon, 1 Apr 2013 20:25:43 PDT