Archives: Projects

Dual Motor L298 H-Bridge Control project can control two DC motors connected to it.  The circuit has been designed around popular dual H-Bridge L298 from ST. This circuit has current sense resistors for both H-bridges to provide voltage which enables this board to use in stepper...

Light Sensitive Audio Oscillator project is a fun loving project which will create different sound effects depending on the light falling on the sensor Specifications Supply input 5 ~ 12 VDC Output 8 Ohms, 0.5 W Speaker Terminal pins for supply voltage and speaker...

1.2V to 35V Adjustable DC-DC Converter project has been design around TI’s  LM2576-ADJ IC. Inputs supply 40 VDC.  LM2576-ADJ is a monolithic integrated circuit that provides all the active functions for step down switching regulator, capable of driving 3A load with excellent line...

High Current PWM Halogen Dimmer controller project is designed around SG3525 IC and High current MOSFET.  Project can handle lamp up to 5 Amps (10Amps Possible with big heat sink) and supply 12-24V DC .Ideal for Halogen Dichroic Lamp or Halogen Lamp. Specifications Supply input...

Voice Changer project can be used to transpose or distort one's voice by encoding the sound appearing at the Microphone input.  This project  is built around AP8072 IC. Specifications Supply input : 6 VDC @ 200 mA Output : Speaker, 8 Ω / 0.5 W Audio amplifier type...

The Tiny Mic Preamplifier based is based on a single transistor amplifier design.  It amplifies the output of the electret condenser microphone.  Good choice for Karaoke. Specifications Power supply: 5 ~ 9 VDC @ 2 mA Provides standard audio signal PCB dimensions 26 mm x 56...

H-Bridge has been designed around IR2104 IC from International Rectifier. The board has been made mainly for DC-Motor applications. The driver can handle a load up to 8-10Amps. I have tested this board with 36V DC supply . The circuit also uses N Channel IR540 MOSFETS from...

1.6W Mono Audio Amplifier Project is based on TDA7231, which is class AB power amplifier with a wide range of supply. Features Power supply: 5  To 12 VDC Output: 1.6 W, 4 Ω / 1 W, 8 Ω Low crossover distortion, soft clipping PR1 Preset for Volume Adjust Terminal pins...