A circuit for monitoring supply voltages of ±5 V and ±12 V is readily constructed as shown in the diagram. It is appreciably simpler th...

This is an electronic fuse that protects the load against short circuit. Relays must be chosen with a voltage value equals to the input vo...

People often forget that many voltage regulator ICs have an upper limit (usually 35 V) on the input voltage they can handle. That applies...

Problems can arise with USB hubs that are powered from a PC when gadgets plugged into them draw too much current. This is often the case ...

The circuit was designed to provide an adjustment with a power supply that is symmetrically designed while providing a voltage range of 1...

Nearly all Panasonic microwave ovens now use an Inverter, and are always labelled with “Inverter” on the front. The High Voltage Power...

Description                A lot of students are who don't know how to convert 230 volt AC to 400 DC. So today i am publis...

Here is the circuit diagram of regulated power supply. It is a small power supply that provides a regulated voltage, adjustable between ...

This circuit will supply up to about 20ma at 12 volts. It uses capacitive reactance instead of resistance; and it doesn't generate ve...

A 4-cell pack is a convenient, popular battery size. Alkaline manganese batteries are sold in retail stores in packs of four, which usual...

There will be instances where the currents from each supply will be unequal. Where this is the case, the resistor divider is not sufficie...

The LM3914 is a truly versatile component. Besides LEDs, only a few other components are needed to make the ‘bidirectional’ bargraph vol...

The OP284 is a low noise dual op amp with a bandwidth of 4MHz and rail-to-rail input/output operation. These properties make it ideal for...

This circuit will automatically switch on several mains-powered "slave" loads when a "master" load is turned on. For ...

This project details the design of a very low dropout adjustable power supply. A good power supply is essential to electronic projects. W...

This is a high quality power supply with a continuously variable stabilised output adjustable at any value between 0 and ...

Here is the simple virtual ground circuit based on discrete components. This simple design comes from miniaturization guru Sijosae. Is t...

This circuit of power supply, is very simple and easy to built, it can be assembled on a general-purpose PCB, finding its materials is v...

This circuit was developed to power an AVR microcontroller from a 12 V lead-acid battery. The regulator itself draws only 14 µA. Of course...

Many modern electronic devices and micro-controller based circuits need a 5 V or 3.3 V power  supply. It is important  that  these vo...