Tiny dc motor speed controller using lm3578

Build a tiny DC motor speed controller using the LM3578 IC. Step-by-step DIY guide with circuit diagram, components, working principle, and speed adjustment instructions.

Transformerless Battery Charging Circuit

Build a transformerless battery charging circuit for small batteries using minimal components. Step-by-step DIY guide with circuit diagram and working principle.

Transistor Induction Heater Circuit

Build a high-frequency transistor induction heater circuit to heat metals efficiently. Step-by-step DIY guide with circuit diagram, components, and working principle.

Ultrasonic Mist Maker Circuit

Build an ultrasonic mist maker circuit to produce fine mist using piezo transducers. Step-by-step DIY guide with circuit diagram, components, and working principle.

Water Overflow tank Alarm Circuit

Build a water overflow tank alarm circuit to prevent tank spillage. Step-by-step DIY guide with circuit diagram, components, working principle, and safety tips.

Password Security Lock using Mosfet Circuit

Build a secure password lock circuit using MOSFETs. Step-by-step guide with components, working principle, schematic, and DIY construction tips.

Pinpoint Detector Metal Gold Detector Circuit

Build a DIY pinpoint detector, a metal and gold detector circuit. Step-by-step guide with components, working principle, schematic, and construction tips.

PIR Motion Sensor at Home Circuit

Build a DIY PIR motion sensor circuit for home security. Step-by-step guide with components, working principle, schematic, and installation tips.

Police light Circuit

Build a DIY police light circuit to simulate flashing emergency lights. Step-by-step guide with components, working principle, schematic, and construction tips.

Powerful Voltage and Current adjustable Power Supply Circuit

Build a powerful voltage and current adjustable power supply circuit. Step-by-step guide with components, working principle, schematic, and construction tips.

Radio transmitters 10 mw in 1w1 Out RF Power Amp

Build a radio transmitter RF power amplifier from 10mW to 1W. Step-by-step guide with components, working principle, circuit diagram, and construction tips.

Radio transmitters 10 mw in 3 w Out 1 - 350 mhz RF Power Amp

Build a 1–350 MHz RF power amplifier boosting 10mW to 3W. Step-by-step guide with components, circuit diagram, working principle, and construction tips.

Remote Control On Off Switch Board Circuit

Build a remote control on/off switch board circuit at home. Step-by-step guide with components, working principle, schematic, and construction tips.

Running LED Chaser Circuit With CD 4017 Circuit

Build a running LED chaser circuit using CD4017 IC. Step-by-step guide, components, circuit diagram, working principle, and construction tips included.

Short Circuit Overcurrent Protection

Learn to build a short-circuit overcurrent protection circuit. Step-by-step guide, components, working principle, schematic, and construction tips included.

Simple One Button Push ON Push OFF Circuit

Learn to build a simple one-button push-on push-off circuit. Step-by-step guide with components, working principle, schematic, and DIY construction tips.

Single Push ON-OFF Circuit using IRFZ44N

Build a single push ON-OFF circuit using IRFZ44N MOSFET. Step-by-step guide with components, working principle, schematic, and DIY construction tips.

Ultrasonic Pest Repeller Circuit

Build an ultrasonic pest repeller circuit to keep rodents and insects away. Step-by-step guide, components, working principle, schematic, and DIY tips included.

Voltage Controlled FM Transmitter Circuit

Build a voltage-controlled FM transmitter circuit. Step-by-step guide with components, working principle, schematic, frequency control, and DIY assembly tips.

Raom Drop Light Circuit

Learn how the Raom Drop Light Circuit works, components, diagram, troubleshooting, and step-by-step DIY guide for beginners and hobbyists.

Remote Control Fan Regulator Circuit

Learn how the Remote Control Fan Regulator Circuit works, required components, circuit diagram, IR control system, troubleshooting, and DIY build guide for beginners.

Running LED Rice Chain Circuit

Learn how the Running LED Rice Chain Circuit works. Full explanation, working principle, components, circuit diagram, animations, DIY steps, and troubleshooting guide.

Seven Segment Counter DIY Using IC 4026 Circuit

Build a Seven-Segment Counter DIY Using IC 4026 Circuit. Learn wiring, components, the 555 timer clock, working principle, and step-by-step construction guide.

12V Battery Using Old Laptop Battery Circuit

Learn how to build a 12V battery using old laptop batteries. Step-by-step DIY guide with circuit diagram, components, working principle, and safety tips.

Adjustable Constant Current Power Supply Project

Build an adjustable constant current power supply for LEDs, batteries, and electronics testing. DIY guide with circuit diagram, components, and working principle.

Adjustable Voltage Regulator LM338

Learn how to use LM338 to build an adjustable voltage regulator. DIY guide with circuit diagram, components, working principle, and applications explained.