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Search for configuration in Topics



Question by mauricewarebee    |  last reply

Is this the right configuration for LEDs? Answered

I am building some LED aquarium lights and I need to know the configuration pictured below will work? The LEDs are white with the following specs: Forward Voltage 2.8-3.5V, 20mA. I used an online calculator and the resistor pictured as 'R1' is 1 ohm, does this sound right? The power supply is 9VDC 800mA. I believe that if each of the 3 LEDs in a set pull 3V, then no resistor would be required, am I right? I have basic electronic knowledge, but have never designed a circuit requiring resistors.

Question by Willard2.0    |  last reply

MCP2210 Configuration Problem? Answered

Using the MCP2210 USB to SPI Converter (Similar to MOD-1013), utility for IC runs with factory default settings for the IC but can't connect to MCP2210 I have plugged into the USB port. Computer sees it, shows it in Device Manager but lists error for it and Code 43.  How do I get the MCP2210 utility from Microchip to recognize the chip plugged into the computer?

Question by Electric Spectre1    |  last reply

how to make an ordinary computer a server?

To make an FTP server ?? what softwares needed? system config required? steps required to do it?

Question by AjayPhilips    |  last reply

Will my wiring configuration work?

I'm making a guitar and it's not the first time i've worked with electric guitars, in fact it's a real hobby of mine, but i've never done a full wiring configuration before. the guitar is a bit of a mash up of various parts, they all work though! i have a techsoft design sheet of the configuration i thought may work but im not entirely convinced. The parts are basic, i made the humbucker and the other is a tele single coil, im not after any tone function, just volume and switcher! can someone help me out? Thanks!

Question by DanielWaring    |  last reply

Symbols Configuration for PCB Libraries

Hi everyone !, I would like to know what kind of symbol configuration most of engineers or pcb designers use or what standards follow to create the symbols.I found some recommendations and i have two examples of symbol configurations , In the "Image #1" i created the symbol placing inputs and pasive pins on left side and outputs on the right side and in the "Image #2" i followed the symbol configuration of the typical application of the datasheet.Which of the two configurations is preferred or recommended to use and why?Thank you.

Question by Juan DavidD3    |  last reply

Merlin pre-configured Software

Hello all, I have a problem. I don't have the pre-configured Software for the mini Kossel 3d Printer Set any more but I have to do some changes in the Software. I could use the non-pre-configured Software but I don't understand what I must do then. Can anyone help me?

Question by Black_juli  

Configuring Digital Scale for Bluetooth?

I'm working on a project using a scale. I would like this scale to be able to submit data to my computer via bluetooth. How can I configure my digital scale to use bluetooth?

Question by DerekFalkan    |  last reply

Sound card configuration problems

Want to configure my 7.1 sound card, which is embedded in the motherboard. Run windows 7. I used to just split the 'green' channel between my small 2.1 computer speaker system and home built full range 'rear' tower speakers with passive crossover, powered by an old 2X 100W RMS Sony amp, with very satisfactory results (movies, mostly reggae music). But finally I got a nice 10" subwoofer!  Time to make a proper setup! So I tried to plug the tower speakers in the black channel, and for now, the headphones, in the orange channel (while wiring the sub into a 4 X 40W  mono setup- Parallel , I assume????). To the control panel, sound, manage audio devices, speakers, configure (5,1 for now). Works like a charm: all tests OK, can hear all test sounds.  Restart... But W Media player, as well as other players (want to customize with Foobar_X_over eventually) don't provide any sound, except for the green channel. What am I doing wrong?

Question by BobS    |  last reply HTTPS configuration Issues

I'm somewhat disappointed that a site like this hasn't moved over to https by default, especially for the login form / while logged in. Further, when manually initiating https connections to I get a certificate error as you're using a certificate for, and mixed content warnings about things coming through unencrypted.  Is there any plan to correct the https configuration of the site?

Topic by mindtesterdev    |  last reply

Best configuration for an AM receiver?

Hi all. I am trying to make a circuit that would help me find lost keys. It would be a simple beeper/ noise maker triggered by AM (for simplicity). I want it to be small and, if possible, cheap. What would be the best approach? Should I use the incoming signal to 'trigger' a 555 oscillator or should I send the 'beep with the signal (The transmitter can be as big as required)? Also, most of the circuits I found online were for tune-able radios. If I want to center mine at 1 MHz and if the quality of the sound is not important, how simple can I make the circuit (while still keeping it sensitive)?

Topic by utkarshsinghal    |  last reply

How to configure clients with WSUS? Answered

Hi!  I am working in a tech shop, and one of the things we do quite often is download and install windows updates on client computers.  The problem is that we are in a isolated area and have painfully slow internet.  I built a server with the idea of using WSUS to speed up the update process by having the clients download the updates from a local server.  I had done this in an AD environment before at another job that I had, but when I was planning this project for this job, I forgot that I had to use GP to deploy it the last time I did it, and A.  I don't want to be configuring GP on consumer computers, and B.  Most computers that we work on are Windows Home Edition, not Professional, so they don't even have GP.  Is there a way to configure my server to "intercept" requests to and just respond within our local network?  I tried pointing a DNS A record for to our local server, but for some reason it doesn't seem to work (is WSUS a different port or protocol than maybe?).  In addition, whenever I want to sync updates on the server with that DNS entry, I would have to delete the DNS entry temporarily, since WSUS services will use the DNS server on my local server no matter what (I have tried telling the server NIC to use and as it's DNS server, and also adding an entry to the hosts file to point it to on the server, but it always overrides and uses the DNS entry from my local server). Frankly, I'm not even sure that what I'm trying to do is possible.  If it isn't, my next idea was to create a script that our technicians and I can run on client computers to quickly switch the WSUS server settings to our local server and then when we are done switch them back to Microsoft.  But would that even work on Home edition computers, or just Professional editions? Thanks for your help!

Question by thegeekkid    |  last reply

Home automation system configuration?

I have recently purchased a used home automation system off of eBay. The whole package included the following items. 1. Amber Wireless AMB8425-M USB Stick 2. Aeon Z-Stick S2 USB Stick 3. Huawei E173u-2 Boradband USB stick 4. 3 x Zwave Socket adapters 5. 7links NAS Print/ USB Server Photos of these modules can be seen below. The seller was not aware how all these modules can be put together into a home automation system. I googled for sometime and figured out that I can setup an indoor automation solution using only the Aeon-Zwave USB and the Z-Wave socket adapters, and control them using my android phone. Can someone please help me how can i use the remaining modules and setup the automation for remote access as well ? Many thanks

Question by muhammajunaid    |  last reply

How to connect BNC_PCB mount 'configuration ' ?! Answered

I need to know the connections 

Question by nobykobe    |  last reply

XBOX 360 Network Configurations..with a twist

Courtesy of Dr.Professor Jake Biggs, I was able to be innovative with my XBOX 360 and share my dial-up connection with my 360 through my computer. (The instructable can be found here.) However, seeing as I have a unique case, I thought this would be the best medium to use in looking for an answer. So let me explain my situation. Through much effort, I was able to procure the know-how of using my cell phone (LG Env3, not the touch though) as a modem. It is able to give me 7.2 Mbps at all times of the day and night via USB. I then realized it sets it up as a dial-up connection and decided to search out a way to share that connection with my XBOX 360 so as to get XBOX Live. Thanks to Jake Biggs, I was able to succeed in this endeavor. Now I am wondering if there is any way possible to open the appropriate ports under Firewall settings in order to get an Open NAT setting rather than a Moderate one. For those of you who play XBOX Live, you know how frustrating it is to not have an Open setting. Also it would be much appreciated if someone could help me out with the IP addressing. Many thanks to any who come by and put in their 2 cents about this. I'm open to any suggestions or theories.

Topic by thedarkparadox  

How to set up Eclipse for Arduino Development Answered

Following numerous instructions for setting up Eclipse for Arduino development I come across the same problem; the project will not build, there are two reported errors, the first stating that "cannot find -lcore" and the second complaining that the .elf cannot be built, presumably because of the first error. The path is correct for the core.a binary but eclipse complains of being unable to find it. An example of the instructions that I have followed are here; I have successfully followed instructions to use the USBtinyISP so I do not think that it is an issue with general setup. I have also tried variations of path locations and executing as SU, all to no sucess. Any help would be appreciated, I am running Ubuntu with Eclipse Galileo, Thanks Drew

Question by andy    |  last reply

My network is really screwed up

I seem to be fighting a loosing battle with my network, things just never work like they're supposed to.For example, sometimes I have to reinstall my network printer on both my laptop and my ibook to get it to print again, even when the server has been running fine sans problems for a week, it will randomly do this shit.Another example is, right now I "was" just trying to copy some music over to an external firewire drive on my server that I have shared. I had the permissions on everyone set to full access yesturday but I noticed when I restarted my server, it did not detect my drive properly until I re-seated the firewire cable :S Thusly somehow it lost my share configuration for my music folder.I set it up, but this time I left it on read only because I wasn't planning on adding any music earlier, itunes and everything was working fine when i mounted the volume. I went on there and changed the permissions back to full access just 20 minutes ago as I wanted to add some music to my drive, I right clicked in my mac os x explorer and made a new folder just to see if I could copy over now, it worked, aswell as deleting the folder.So I drag the 60mb folder of mp3 files over, and it just sat there...and sat...and sat.... until eventually giving me an error -36, upon searching about, it means "-36 ioErr I/O error (bummers)".That's straight from the horse's mouth, and that really tells me nothing, what exactly does "bummers" mean???It's frustrating for me non stop, and it does this to me with other shares in mac os x, or they will randomly disconnect for no reason, sometimes after 15 minutes or sometimes after 3 days. I will note too, I can't connect to my server now, it just says missing alias in the mac os finder. Yet I can VNC into it no problem, wowa, but just upon checking my pc just now, it can't access any shares on it either, the cursour is just spinning, however I usually have no problems with my pc's accessing it, other than the printer thing.I'm just so god damned frustrated with my set up, I've looked it up and down until I was exhausted, several times, and I know I must be missing somewhere along the way, but I just can't understand how it doesn't work like I want it to. Shares are set up, firewire is out of the question, permissions set up, mac os x can log into server, check. It's all good until I actually go to use it for something when I really need it.I'll have to restart my server now to get it to work properly was fine until I vnc'd into it to change the permissions, im gonna try restarting it now and just access it from it's own screen, perhaps vnc has something to do with it.Oh and to clear up any questions before they're asked, this is how I have it configured, as quickly and detailed as I can explain it:My network starts at my ADSL +2 4 port router/modem thingy (Speedtouch 546, it has it's own connection issues on the isp's side, but they don't seem impact LAN side data flow)That then gets split off to:*Port 1: iBook G4*Port 2: 25 ft. cable to 8 port switch (I'll explain that a little further down)*Port 3: 50 ft. cable to apple airport basestation in livingroom for wifi*Port 4: My main AMD PcMy ibook is configured for DHCP with manual address switch just makes the modem think I have like 5 computers hooked into one port lol...My airport, for a long time I thought was perfectly fine as far as usuage with my thinkpad, however, I've been noticing the last few times it's powered on, the airport connects to the thinkpad, but assigns it a address which does not exist on my network, but if I turn the wifi off and back on, it connects fine and assigns it a dynamic ip on my network.Other than that, I have it in bridge mode so that it acts pretty much the same as if the laptop were wired via ethernet, vnc, filetransfers, and online games all work good albeit the wireless delay, still not bad in VNC however.My AMD machine is set up for static ip at 2 of my modem goes to port 8 (uplink) of my switch.*Port 1: My server (Configured for static ip at rest are just my B&W; g3 setup for static ip at and an old P2 I believe is at .69 and a 1.5 amd athlon aswell setup on, all of those in no particular order except I made sure my server stays on port 1.I did have everything setup so my server was on port 2 of my modem all by itself, but I needed the switch over by my server so I moved it, however, I was still having these problems before hand, even when my server was running on a completely different motherboard!Also, maybe could someone tell me why my server won't boot unless I have a bootable disk in the drive (IE: my windows 2003 server install disk), just so it goes to "press any key to boot cd.......", of course I don't push any key, and it continues to boot into windows.However, if I dare start my server without that disc in there, it simply goes to "Invalid System Disk error, insert correct/valid disk (can't remember it word for word), and push enter"I've tried reinstalling windows server 03, and same deal, yet it's using the same hard disk for the OS that my previous motherboard used and booted from not a problem.I really apologize for the long post... but I've quite literally burnt myself out and lost all motivation with continuing to expand my computer network and so I figured I would ask for help on here for one last resort, but I know many people probably won't read it due to the long post, but I have a lot of problems I don't have answers for and I need to explain myself somewhat thoroughly or else I won't find the proper solution for the problem, now will I?

Topic by Punkguyta  

Please Help for AutoLevel TronxyX5S

Hi, I apologize for the corrupt English first.I have a Tronxy X5S 3d printer. And I bought a sensor( SN04-N NPN) to add autolevel property to the printer. I thought I would be able to get rid of the small curves on the hotbed. I've arranged my commands according to autolevel as follows. But when I want to print a large shape, the extruder remains in the air at some points of the hotbed, print properly at some points, and at some points worth the hotbed(no filament output). So the autolevel property is not working properly. Can you help me? What am I doing wrong?My Marlin Configrution.h Changes//////////////////////////////////////////////////////////////////////////////////////////////////////////////#define AUTO_BED_LEVELING_BILINEAR//////////////////////////////////////////////////////////////////////////////////////////////////////////////#define X_PROBE_OFFSET_FROM_EXTRUDER -40 // X offset: -left +right [of the nozzle]#define Y_PROBE_OFFSET_FROM_EXTRUDER 20 // Y offset: -front +behind [the nozzle]#define Z_PROBE_OFFSET_FROM_EXTRUDER 0.5 // Z offset: -below +above [the nozzle]//////////////////////////////////////////////////////////////////////////////////////////////////////////////#define X_MIN_POS 0#define Y_MIN_POS 0#define Z_MIN_POS 0.6#define X_MAX_POS X_BED_SIZE#define Y_MAX_POS Y_BED_SIZE#define Z_MAX_POS 410//////////////////////////////////////////////////////////////////////////////////////////////////////////////#define GRID_MAX_POINTS_X 7 #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X//////////////////////////////////////////////////////////////////////////////////////////////////////////////////Set the boundaries for probing (where the probe can reach). #define LEFT_PROBE_BED_POSITION (20)#define RIGHT_PROBE_BED_POSITION (280) #define FRONT_PROBE_BED_POSITION (40)#define BACK_PROBE_BED_POSITION (320)************************************************** ***************************************My Repetier Host/CuraEngine Gcode Changes////////////////////////////////////////////////////////////////////////////////////////////////////////////// G21G90M82M107G92 Z0G1 Z5G28G29G28 X0 Y0G28 Z0G1 Z15.0 F9000G92 E0G1 F200 E3G92 E0G1 F9000{IF_BED}M190 S{BED}{IF_EXT0}M109 T0 S{TEMP0}Please watch my problem

Topic by BurakD22  

How to change the configuration of a lithium cell pack ?

I’m working on a project were I have to be able to adjust the voltage of my output by 3.7 volt increments. Example: 12 18650 batteries hooked up in series and have the voltage change from 44.4 to 22.2 to 11.1 Essential I’m trying to go from a 12s to a 3s4p or 4p3s cell configuration.

Question by prostructables    |  last reply

How should I configure my router?

How should I configure the router, what is this called, I have no idea and I am in need of dire help! :) This is the setup: /T

Question by Tubehacker01    |  last reply

TP-link configuring issues!!!! PLS help?

I have bought a brand new TP-link wireless router but i hav got problems in configuring it, after a long conversation with the technical support from the company i could not fix my problem, some pls help me to fix the problem!!? i'm from india i use a Broadband connection provided my BSNL(ISP name) i use dynamic ip, i connect the cable directly to my computer and use internet, it is a cable modem which i use, and i can access the router via192.168.1.1

Question by mohanrajm88    |  last reply

Xbox One Raspberry Pi 3 configuration

Hello everyone,I am working on a project that requires me to interface the Xbox One wireless controller with a Raspberry Pi 3 Model B (Running Raspbian Jessie and not Retropie). I need the controller and the pi to execute programs on button press and drive motors with the joysticks, I have installed Xboxdrv in my pi but am unable to connect the controller to it. Please suggest the required steps I must take to get this working.

Question by Bhabeshr    |  last reply

How to charge multiple batteries in a strange configuration?

Hi all,  Basically I'm planning on making an electric motorbike within the next year or so and need to know how to charge the batteries. I'm planning to have 8 batteries altogether, 4 batteries connected in series, then the 2 sets of 4 connected in parallel to up the capacity. How would I go about charging this configuration? The batteries are going to be high capacity, deep cycle sealed lead acid batteries. Cheers, - Will

Question by xXAfterBiteXx    |  last reply

Wireless usb adapter & router setting/configuration

Hey all, I hope everyone is good & happy..........................I need just basic instructions on , From my cable broadband modem to> , My Router>the WIFI antenna (about 400 ft. from my home)>my laptop (where I presently have to use the USB port to get any signal)>what do I do now to configure all the settings correctly? I sure could use some more advice guys please help...... Thank you all................................ Mel5656

Question by mel5656  

Is there a simple way to build a configurable TOSLINK delay?

Some TVs require 3 frames for the interpolation of tweening frames (and then there is also processing overhead time). With frames coming in at 1/24th for film or 1/30 for tv then 2 or 3 frames out of sync can look horrible and add several hundred millisecond delays. The TV's SPDIF is already delayed and works great, but downscales DTS to stereo (I hate you Blu-Ray!). So I need a delay on optical that bypasses the TV to get DTS to work.   I've done some research and found that the following products do a audio delay to help with sync problems with LCD TV (esp 120Hz) and TOSLINK on older receivers that can't add the required lip-sync delay. The consumer level delays are made by: Felston - $250 J.S. Technology (UK company) - £79  Alchemy2 - $400-$450 Primare -£200 Bottom line, what does this take to develop: A TOSLINK receiver and transmitter. A MPU that can receive the serial stream store it in internal memory and read at a configured offset to transmit. Has anyone take up a project like this and be willing to post the intructions here. I hate to buy a new receiver just because of this, that would be wasteful.

Question by j_a_s_p_e_r    |  last reply

How to configure LM317T to deliver 5 amps?

Hi guys, I'm new to the site. I wonder if someone could help me resolve my problem. Well, I'm trying to build a Laptop AC Adapter, but I can't get these components right now: -A Transformer -A voltage regulator other than LM317T and I have no experience with other ICs. So I'm using a DC to DC converter. The input power supply is a Z12 Lexmark printer AC adapter. It gives a DC output current of 830mA under 30 volts (actually it's 37.5 volts, I've checked this with my multimeter). However, the output I would like to get is 4-5 amps under 19.5 volts. I would like to mention that I've already given it a try. But the output current I've got wasn't enough to feed the laptop. I've used an LM317T and adjusted the voltage with a 6.6k resistor and a 47k potentiometer down to 19.5 volts. If there is a way to boost up the current with a joulethief or using a set of transistors or parallels LM317Ts, please tell me. Also, I hope that you give me the part number of all the components to match up with the LM317T because I must use this type of regulator. Thanks for your help and please consider my situation.

Question by junkrecycler    |  last reply

D.C input resistance of a BJT transistor in C.E configuration?

What will be resistance across base and emitter of BJT in C.E configuration

Question by deepakmurali    |  last reply

Change batteries from serial to parallel configurations with switches?

I have a 5s4p battery pack.  The cells are 3.7 nominal voltage lithium ion cells.  In a serial configuration it is 18 volts nominal.  If I wire it in parallel it is in a 1s20p configuration and 3.7 volts nominal.  I had this awesome idea to use switches to change the configuration from 5s4p to 1s20p.  I want to do this because then I could charge whole pack with a 3.7 volt charger.  Better yet, I would not a balance charger. Once I got to trying to design the switch configuration I was amazed at how complex it would have to be.  The only way I can think of at the moment is to use 4 single throw single pull switches to isolate the cells and then use 5 double pole single throw switches to connect all the pos and negs together.   Does anyone out there know how to make a circuit which could work with with one circuit board and one switch?  It could switch between 18 volts serial to 3.7 volt parallel? Thanks

Question by Noblenutria    |  last reply

How do I Configure a Adjustable Voltage Regulator? Answered

Hello! Im working on a project that uses a 9v battery to power a circuit. I would also like to power a circuit with the same battery. But this circuit was designed to run off 2 AAA. I've gone searching and It seems like I was only needing a Voltage regulator to step down that 9v to 3v ish.  Problem is that I couldnt find a output 3v one! So I had to buy an adjustable one from Fry's Electronics. And I don't know how to configure this! haha, this is quite a problem. And documentation on this product is horrible. Can anyone please help me out?? Product is NTE1900 3 terminal positive adjustable voltage regulator. Input is 9v, I want an output of 3v. How would I set this up? Thanks!

Question by noobiefied    |  last reply

Tesla coil configuration. Audio amplifier power supply?

If I am to use an audio amplifier as a power supply for a Tesla coil could I do without a spark gap and primary capacitor? I will be operating the coil within the audible spectrum (1Hz - 20KHz) so an amplifier fits the bill. It's a 2 channel magnetic field power amplifier rated for 750W per channel. That's 750RMS not 750IFL. (If lightning strikes) The current would flow as follows: Power Amp> 4ohm Load> NST 5000v 60ma> RF Choke> Primary Coil> Secondary Coil 1. Do I need a capacitor bank between the RFC and the primary? 2. Can a few feet of 28AWG galvanized steel wire act as a reliable resistor for the 300W current? What about 750W? If not, what can I substitute? 3. Can the amp hold together? I need it in one piece. Please point out the flaws. Thank you

Question by imMrDude  

Configuring LED in a series, where do I place the resistor?

If I was going to a configuration of 3 LED lights (10MM), do I need a resistor for each or only for one? And if only for one, how do I calculate for the resistor I need, i.e., does the resistor need to take into account the output of each LED and multiply by 3? Very new at this, trying to learn as much as I can. All advice is greatly appreciated.

Topic by shindakaeru    |  last reply

How many resistors do I need to use for this configuration? Answered

I am soldering 5 standard Radioshack LEDs together to a 9v battery. How many resistors should I use and where? Should I go Battery-resistor-LED-Resistor-LED-Resistor-LED-Resistor-LED-Resistor-LED-Resistor-Battery? Or something else? Thanks. :)

Question by sciguy77    |  last reply

Anyone able to help with a Raspberry Pi magic mirror configuration issue?

Hi, I'm building a raspberry pi Magic mirror using MichMich's program found here: The problem that I am having is that I can't get the clock and temperature to change to 12hr and Fahrenheit. I tried doing what it says here: But I still can't get it to change. Any help anyone can give would be greatly appreciated.

Topic by sir-zeke  

How to change Raspberry Pi magic mirror to 12 hour time and to Fahrenheit?

Hi, I'm building a raspberry pi Magic mirror using MichMich's program found here: The problem that I am having is that I can't get the clock and temperature to change to 12hr and Fahrenheit. I tried doing what it says here: But I still can't get it to change. Any help anyone can give would be greatly appreciated.

Question by sir-zeke    |  last reply

Electric Bike project, what kind of configuration should I use?

I'm planning to make an electric bike and have to select between many options, and want to know all the options available. Where should i put the motor? What kind of configuration (assisted, or motor only, etc.) should I use? I am actually making my old bmx to electric. It will weigh about 100kg with me on it, and the batteries and all. I want it to do at least 20-30 kmph. Im having a tough time selecting parts, and would really appreciate help.  

Question by ppanchal1    |  last reply

iPad now is the price?Wanted to buy the iPad, and how the iPad configuration is better?

Had never used the iPad, please give advice

Question by lifechristine    |  last reply

How Can I Configure my xda Atom Exec Wireless Conncetion?

I have a xda Atom exec device and i am facing a problem connecting it to my wireless network at home . the device detects other networks around me but it does not see my wireless network.. who can walk me through the correct steps if there is any or , what do i need to modify in my wireless router settings , i have a TP-Link router . thank you in advance

Question by DoubleY  

Windows 7 Setup error:Windows setup could not configure one or more system components.?

Hey, I am trying to install Windows 7 RTM, legally, Have my legal product key with me.So it installs, i have the ISO image, i mount it, and run the setup from there, that is how i did it with the windows 7 RC, And it worked fine.But now, It gets past the first part, installs fine, Second part, Fine, 3rd part where it is at "Completing installation", At about 99% done, It gives the the following error:Windows setup could not configure one or more system components.Then it restarts, and ends there.I tried re-downloading twice, I tried Re-installing 4 times, No avail.Any help? Ideas?Thanks~ReCreate

Question by ReCreate    |  last reply

How to configure spoilt vga cable of crt monitor from another good crt vga? Answered


Question by mauricewarebee    |  last reply

Any one here have an idea as a configuration to turn on a Astec AA20790 computer power supply?

I have two ASTEC power supply, but I don't know how turn this on, I want the 12v output with my cnc printer, but in internet and youtube they don't have so much. Please, can you help me my with give me some diagram or configuration with this power supply. I try to put a resistor with com and 12v cghs something like that. But the power output stay in 0v and the fan stay too in low power. This russian guy put a cable but he doesn't say how active the output, I think is the same thing I wanted to do but doesn't turn on. Thanks a lot and some kisses.

Question by paberu    |  last reply

BJT (NPN TYPE IN COMMON EMITTER CONFIGURATION) current drawn between different ends of transistors

Hello EveryoneWhile iam connecting a motor of ratings 3v ,300milli amps in the emitter side it is drawing around 200 amps ,whereas when iam connecting it in emitter leg it is drawing 200ma,but in collector leg it is taking 300mamps,1kohm resistor is connected to base and 10ohm resistor to collector and supply voltage is 5v but as per bjt emitter leg is the one which will draw more amps,then why this behaviour??

Question by Freak07    |  last reply

RBG: Shotgun Style

Yes, it is the only shotgun rubber band gun that I know of. It is based off of the Remington M870 and can be easily modified to be both be in an entry shotgun configuration, with tactical buttstock, or in a "Breeching weapon" configuration, with no buttstock. In the first picture, it is in the entry configuration. In the second picture, it is in the breeching configuration, but with the buttstock shown to show how it could be carried in a briefcase or something similar. There is no difference whatsoever between the two, other than the obvious difference in the buttstock, but less obvious, the breeching configuration has more mobility in the cocking hammer, so it works better. I am sorry for the lack of pictures of the internals, I will hopefully be posting them in the future.

Topic by Whaleman    |  last reply

how do i configure incredimail with windows live, I cant send email from my incredimail.?

I get an error server does not suport ssl connection

Question by mepp    |  last reply

3 Phase supply

What will be configuration to supply 3 Phase 460 V power into these strings having voltage range as shows in the pics. It can be either star, delta etc configuration. It should be balanced. Answer will be highly appreciated.

Question by tverma95    |  last reply

I need help on configuring marlin on my arduino mega 2560 ramps 1.4 for a da vinci 2.0 printer

Hi Guy's I am new at this game and in plane words "I have no clue what I'm doing wring" I bought a Da Vinci 2.0 Duo and after a few weeks the problems started. After searching the internet on solutions I discovered that I can rip out the original board of the printer and replace it with Arduino mega 2560 ramps 1.4. I did that and got some info on what the sketch should look like on Youtube but I am struggling to get the printer fully functioned. This project is a little more than what I thought it would be. I tested the boards but they seem ok, again, Youtube help here but now I am at a loss. I mannaged to get the stepper motors to work but I am struggling with the famouse endstops and how to home the axis's. If you think I am way less than a beginner you are right. These things make my head spin. Is there any one that can share his marlin sketch configuration, that is working, with me. I am tired of this now and just want the printer to work. Any help will be much appreciated Many thanks

Topic by Lou0077    |  last reply

How to prevent transistor saturation?

I am trying to create my own audio amplifier. My problem was when i have large signal amplification the transistors becomes saturated, as a result the resulting signal is already clipped. This problem usually occurs when i use a transistor at CE configuration. Using CC configuration prevents this saturation problem but it also makes amplification very hard. When i use CC configuration one of the two transistors becomes "useless" because collector current becomes very low and based on further analysis it seems like only the last transistor is doing the job.

Question by codestroy7    |  last reply

i wish 2 build a wind gen like the diy 1000 watt, but i dont get what the wye configuration is, & was it 2 or 3 plates?

I wish to build a wind generator like the diy 1000 watt, but i dont quite get what he's saying about the wye configuration, and was it three plates or two?

Question by Gr82Bake    |  last reply