This is a very easy and simple LED flasher with only three components: a flasher IC LM3909, a LED indicator and an electrolytic capacitor.
The supply voltage is 1.5V, so it can be operated using a 1.5V battery which can be easily found on market.
Component list:
LED1 _________ Red LED C1 ___________ 100uf/16V IC1 __________ LM3909 Battery ______ 1.5V AAA
The LM3909 is a monolithic oscillator specifically designed to flash Light Emitting Diodes. By using the timing capacitor for voltage boost, it delivers pulses of 2 or more volts to the LED while operating on a supply of 1.5V or less. The circuit is inherently self-starting, and requires addition of only a battery and capacitor to function as an LED flasher.
This circuit can be used for various applications:
Do you have a bicycle..? why don't try to build this circuit..?. Powered using battery…
This is the circuit diagram of 3A switching power supply regulator: Simple and cheap, the…
Here is the remote control tester circuit. This circuit is really a simple and easy…
This is the circuit diagram of current output multiplier designed for regulator IC LM78xx. By…
The following diagram is the FM tracking transmitter based on 4 transistors. No additional notes…
This is the circuit diagram of white line follower toy. The actuator of the toy…
View Comments
good amp
superb...!!!!!