This is a transformerless power supply for low current applications. C1 is the X rated AC capacitor that reduces high volt AC. D1-D4 rectifies AC to DC and C2 removes ripples. R1 is the bleeder to ...

Learn about the benefits of push-pull transformers and how they can also be used to supply the bias voltage for an isolated insulated gate bipolar transistor. Because of their high efficiency and ...

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 ...