This 12 Volts transformerless power supply take advantage of the fact that a Zener diode is also a normal diode that conducts current in the forward direction. During one half wave, the current flows ...

Here is a Dual power source for the Home Security system which has to be switched on continuously. It is a power saving circuit that uses a Solar panel for providing power during day time and a ...

Intel’s latest power play isn’t about toppling AMD, but about energy efficiency. The company’s new ATX12VO power supply ... volt and 5-volt rails, and concentrate solely on producing 12 ...