Breadboard 5V Power Stage Tutorial


Introduction: Breadboard 5V Power Stage Tutorial

About: Works full time in corporate. Makes free tutorial in free time for open source community.

A beginner almost starts with the breadboard while learning electronic circuit. When I started, I came across a lot of tutorials and content but I could not find the basic tutorial for setting up a power stage on bread board. So I somehow learned from various references and also made a quick tutorial. So, lets start of with the tutorial. For this tutorial you will need some components:

Step 1: Components Needed

In this practical tutorial you will require the following materials:

1. Single Core Wire Multimeter
2. Wire Stripper Nose Plier
3. 7805 Regulator IC
4. Battery Snapper(Battery Connector)
5. 9V Battery Breadboard
6. Red LED-2
7. 270 Ohm Resistor - 2
8. 1000uf Capacitor - 1
9. 100uf Capacitor - 1
10. 10uf Capacitor - 2

Step 2: Connecting the Joints

1. Keep your breadboard straight no matter which is pointing in which direction. Just make sure that once you have decided the side, you should not change it as it will be hectic for you to operate. We will use red wire for positive lines and black wire for ground lines.

2. Now next step is to pin up ground wires.

3. Now lets finish off with the third line which will be output line from where +5v will be regulated all over the breadboard.

4. The breadboard is divided into two regions. Now lets supply GND in both the regions.

5. Complete the setup with also connecting red lines in both the regions

Step 3: Adding 7805 Regulator and Capacitors

6. Join the middle part for both ground and +5v lines which will complete the power supply into the breadboard.

7. Connect the ground lines to complete the wiring setup on the breadboard.

8. Now place the 7805 regulator in the following manner. Be careful while placing and don't place it wrongly as it would heat the 7805 regulator IC and would damage it.

9. Place the 100uf Capacitor between the +ve and -ve lines i.e just between the +5v Output voltage and the ground of the regulator.

10. Now similarly place a 1000uf capacitor in between the input voltage and the ground. This will act as a global storage for power supply i.e when the battery is removed it will make sure that power is not gone instantly.

11. Now Place the 10uf capacitor on the left part of breadboard between -ve and +ve lines. Do same on right side also

Step 4: Adding LED to Indicate Power Supply

13. Now, The setup is almost complete. To indicate that the there is power supply running through out the breadboard, we will place an indicator i.e. LED bulb which will show that there is power supply in both the lines. The cathode of led on -ve lines and positive on the breadboard main line.

14. Now, we will use a 270 Ohm resistor to limit the power supply for the LED bulb. Since, it would get damage if the voltage is more. Connect the anode of LED to +ve side of breadboard.

15. Do the same thing on the other side of the breadboard.

Step 5: Powering Up the Breadboard

*Now lets check whether the circuit is working or not. Put on the +ve wire of the battery snapper in the Input of 7805 Regulator IC.

*Now put the Black wire in the gnd of 7805 regulator as following image.

*Now connect a 9v battery and if your connections are OK then the LED at both the ends will glow up

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    13 Discussions

    Good !!

    But being battery powered , you probably don't need all of the capacitors . Just a de-coupling capacitor at the output of the 7805 should do the job !

    Cheers !!

    3 replies

    Hello. The capacitors are just to filter. The power stage is very basic part of beginning anything on breadboard. Using the same breadboard setup, we are going to apply a programmer circuit. To prevent any damage or surge, the usage of capacitors was necessary.

    Yeah , the capacitors certainly won't hurt anything , and if you decide to power the breadboard from a rectified AC source instead of a battery they would be needed , so it should work either way ! It's just that if you only plan to use battery power , it would mean less parts to buy and install . Oh yeah , like MAGKOPIAN said in his reply , a 100 nF , or there about ceramic cap in the output of the 7805 would be a nice touch .

    Cheers , take care , and have a good day !...73

    You need the capacitors except the 1000uF and the 100uF, usually we use such big caps when we want to smooth out a DC voltage that comes from rectification. I suggest removing the 1000uF cap completely and replacing the 100uF one with an 100nF ceramic.

    Electrolytic caps are horrible for filtering high frequencies but you need them because they can be very big and very low cost for their size. So, the best way to go in my opinion, is to use a 10uF cap on the input, a 10uF cap on the output and finally an 100nF ceramic one on the output.

    That gives me an idea, I think I'll try to make a custom PCB version of this with SMD components, but make it occupy the same space on breadboard as yours.

    You indicate 270K resistors for the LEDs. I think you meant 270 ohm resistors. 270K resistors would prevent the LEDs from ever lighting. Excellent layout.

    1 reply

    Oh, Yes. Its 270 Ohm. Thank you for pointing it out. I will immediately correct it.

    Hey Dude , look up a 7805 on google , 7805's have been around for like "almost forever ". . the circuit appears to be a generic use of a 7805 regulator .

    Cheers !!

    Yes. 7805 has been almost like forever. When I was trying to find a tutorial for a friend, I didn't find any on bread board. I made it for his as well as put on instructables.

    Hello, Sorry Not included it in the instructable. Here it is

    Thank You. I am looking forward to post more Instructables like this.