Many electronic projects need 12V clean power for output devices like LCD, graphic LCD and DC motors. A simple AC to DC converter using 7812 regulator. It provides fixed 12V for small devices and general use. Big 100uF capacitor remove big AC ripple from rectified DC. Small 0.1uF capacitor remove small ripple from regulated output. […]
Power Supply Circuits
Voltage Vs Current Explained Simply
Electricity works because of voltage and current. Both are basic parts of any electric circuit. Voltage gives energy. Current shows how much charge is flowing. They are related but not the same. Let us understand both in simple words. What is Voltage? Voltage is the electric force or pressure. It pushes electrons to move in […]
Smart Energy Meter Circuit with Arduino UNO
Electric bill increasing day by day. So we need smart way to measure power use. Here is a simple project using Arduino UNO, ACS712 current sensor and 16×2 LCD with I2C. It shows real time current, voltage and power. This project for Smart Energy Meter Circuit with Arduino UNO help to monitor load and save […]
Slow Voltage Rise Power Supply Circuit
Sometimes when our circuit power is ON a big current comes suddenly. This sudden current can damage parts like IC, capacitor and transistor. To stop this we make Slow Voltage Rise Power Supply Circuit. This circuit gives voltage slowly but not full at once. So circuit become safe and work is quite reliable. Circuit Working: […]
High Current Adjustable Regulator Circuit with 30V 3A Output
In this article IC LM723 chip controls the voltage. It give stable DC output, voltage and current adjustable. Output voltage range is 2V to 37V and up to 150mA and input is max 40V. High Current Adjustable Regulator Circuit with 30V 3A Output is good for lab supply and projects. With extra pass transistor it […]
High Current 12V Voltage Regulator Circuit using Transistor
Voltage regulators is very important in power supply. They keep voltage steady and even if input voltage changes or load changes. This circuit give steady 12V output with max 3A current. If current need more than 3A then it still works good for regulation. High Current 12V Voltage Regulator Circuit using Transistor give steady 12V […]