Transistor Flasher Schematic

R1 2k7 r2 100 ohms t1 bc 547 c1 100 uf to 470 uf.

Transistor flasher schematic.

This circuit basically works on the charging and discharging of capacitors. Cree white led matrix copied from the digikey search engine and edited numerous devices are available. This led flasher circuit is very easy and simple and there is no ic used. Circuit diagram blinking led circuit.

But the supply voltage not be less than 9v otherwise the circuit might fail to work correctly. Cree white led matrix xls. Key to the brightness is the led. Which be the circuit that is simple but at this time a friend someone complain to come to that want the circuit that use the transistor.

Can be used on roads for signaling purposes. Both npn transistor you can use of bc547 548 or 2n2222. In the first circuit a flasher circuit in series with a 220 ohm resistor turns on a power transistor. Lamp flasher circuit using 2n2907 bipolar transistor i has evered to play the leading role lamp flasher circuit with the integrated circuit.

The two circuits below are typical connections. Parts list for the proposed single transistor led flasher circuit. I selected a cree device cree is well known for ultrabright white leds. This circuit can be operated using dc 6 12v supply.

Led any type any color. Use 9v or 12v battery or adaptor for this circuit. We can create a dancing led circuit by combining many similar circuits which we can use for advertisement boards. The flashing rate could be varied either by changing the value of r1 or c1 or both together.