To begin with, Power ON Delay Circuit using IC 555 give time gap between power ON and circuit starts. When trigger comes, IC 555 work in monostable mode and give one output pulse for set time; furthermore, resistor R1 and capacitor C2 make timing part for delay. When the circuit is OFF, the output stays […]
Power Supply Circuits
Simple Current Limiting Circuit using IC LM317/LM338
The Simple Current Limiting Circuit using the LM317/LM338 controls the current flowing to the load and these ICs also work as current limiters when we configure them properly. Here, power comes in as Vin and LM317/LM338 have 3 pins: input, output and adjust. Vin goes to input pin ad output pin (Vout) goes to load […]
Simple Laser Diode Driver Circuit using IC LM317
One way to give steady current to laser diode is using a Simple Laser Diode Driver Circuit using IC LM317; as laser diode are very sensitive to current and with wrong current can damage it. Furthermore, LM317 usually gives voltage but here it gives constant current instead. Circuit Working: Parts List: Components Values Quantity Resistors […]
Supercapacitor Charger Circuit
We can charge supercapacitor safe and proper with simple and easy to make Supercapacitor Charger Circuit. Battery does not charges or drain fast, but supercapacitor can do fast charge and drain, because supercapacitor hold less energy than battery. Also, circuit uses voltage regulator chip like LM317 to control voltage to supercapacitor and regulator checks supercapacitor […]
Boost Converter Circuit using IC 555
A Boost Converter Circuit using the IC 555 increases a low DC voltage to a higher DC voltage; in this circuit, the IC 555 generates a PWM signal that controls the switching components and regulates the output voltage. Also, other parts used are IRFZ44N, inductor, diode, resistor and capacitor. Circuit Working: Parts List: Components Values […]
12V SMPS Driver Circuit for LED Strip
12V SMPS driver change big AC power from 110V or 220V into small 12V DC, also circuit is good for LED strip light. Furthermore, in this DIY project we can make cheap and strong LED driver, which can power full 12V LED strip with 100 or 200 LEDs. Important points to follow: Here, Circuit uses […]