In this post we try to analyze what is constant current source and how it affects a load, or how it may be used with a load correctly for achieving […]
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How to Repair a Switch-Mode-Power-Supply (SMPS)
In this post we try to diagnose a burnt SMPS circuit and try to troubleshoot and repair the circuit. The shown unit is a cheap readymade Chinese make SMPS circuit. […]
3 Best Transformerless Inverter Circuits
As the name suggests, an inverter circuit that converts a DC input into AC without depending on an inductor or a transformer is called a transformerless inverter. Since an inductor […]
SMS Based Pump Controller with Automatic Dry Run Shut Off
In this post we are going to construct a SMS based water pump controller with automatic shutdown of pump when no water flow through the pump is detected. We will […]
4 Simple Proximity Sensor Circuits – Using IC LM358, IC LM567, IC 555
Video Demonstration An IR proximity sensor is a device which detects the presence of an object or a human when it is within a predetermined range from the sensor, through […]
Buck Converter Circuit Using Arduino
In this project we are going to step down 12 V DC to any DC value between 2 and 11 V. The circuit which steps down the DC voltage is […]