Build a flip-flop circuit
A flip-flop circuit is an electronic circuit which, in this example, functions as an electronic alternating flasher. You can build this circuit with a few electronic components.
What you need:
- Breadboard (approx. 50 by 100 millimeters)
- 2 transistors BC237
- 2 electrolytic capacitors, 47 microfarads
- 2 resistors, 100 ohms
- 2 resistors, 10 kilohms
- 2 LEDs in the desired color
- 1 diode 1N4001 (not absolutely necessary for the function of the circuit)
- some wire (20 centimeters is enough)
- Battery or accumulator with 3 to 5 volts
- Soldering iron and solder
- Side cutter
- Knife or wire stripper
The function of a flip-flop circuit
- A flip-flop circuit can assume two possible switching states. Switching between these switching states takes place either automatically or by an external impulse.
- A good example of such a flip-flop circuit is the alternating flasher presented here, which you can set up with a few electronic components on a breadboard.
- This alternating flasher can serve as a kind of signal circuit, for example. But the small circuit is also very suitable for decoration purposes.
- Due to the use of LEDs as a light source, the circuit is very energy efficient, which is why it is very suitable for battery operation.
- The circuit works with a voltage of around three to five volts. The power consumption is only a few milliamperes.
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This is how you set up the alternating flasher
- It is best if you look at the schematic for that Alternating flasher circuit print.
- Insert the components into your breadboard so that you can easily connect the components together. When plugging in, pay particular attention to the polarity of the individual components. This is especially true for the transistors, the electrolytic capacitors and the light emitting diodes.
- Now solder the connections of the components together as shown in the circuit diagram. When soldering, make sure that you do not heat the components for too long, as this could damage them.
- After soldering the components together, solder two more wires for the power supply to the circuit. It is best to use wires of different colors so that you do not mix up the plus and minus poles.
- The circuit is now set up and you can connect a battery and try out the function of the circuit.
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