Nice Disco Light Circuit Using Transistor

This circuit is made using mainly npn transistors and capacitors and some resistors.

Disco light circuit using transistor. Usually the signal from a microcontroller or logic gate does not possess sufficient drive current to power an led directly. The light sensor circuit is one of the coolest circuits in basic electronics projects. It detects the quantity of light present in the environment and the results can be detected by the brightness of the led.

A circuit is presented hereby is of disco light making use of low cost cmos chip cd4011b which is a two input quad nand gate. Basically these are designed to pick the high intensity sound like bass sound. The main advantage of this led chaser is it does not require any ic or microcontroller.

A driver circuit is also very useful if you are experimenting with pulse width modulation pwm techniques where the goal is to control the brightness to create a dimming and. The mains supply can be conveniently reduced with no heat dissipation by the reactance of c1. G 1 and g 2 as shown in figure below it works as an rc oscillator forming clock oscillator gates.

This circuit may be useful for knowing the working of ldr light dependent resistor or photoresistor working of npn transistor the impact of the sensitivity of the resistor on the circuit. If the led has a higher power requirement then it is best to use an npn transistor as a driver. All leds blink as moving in one direction.

An led driver is an electronic circuit that utilises a transistor to switch power to an led. The transistor s emitter connects to the positive led resistor assembly connects across the collector and the ground and initially the led remains switched off and gradually comes on as the pot s slider arm is gently moved more toward the ground and vice versa. The below diagram represents the above explained circuit to build an and.

That s why a bc547 and bc557 are taken as complementary pairs having complementing reverse order performance. The output pulse from the digital circuit to biased the transistor is on. Then rectified by d1 1n4007 and d2 1n4007 and clamped to 24v by the zener diode d3 24v due to the very low current consumption of this circuit.