28V DC To 5V DC Switch-Mode Converter (Regulator)

This is a 28VDC to 5VDC switching converter circuit.  As a switch-mode voltage regulator, this circuit gives higher efficiency than linear regulator type. Using the National Semiconductor LM1575-5.0, this circuit can be used to convert 28VDC To 5VDC with efficiency of >80%. This circuit can be used as a 5V source @ 1A. Here is the schematic diagram of the […]

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Power Factor Controller

This circuit is called power factor controller with universal input circuit. It has input range about 90 to 268Vac. Any standards of mains supply  in almost any country would be under that range. Maximum load of this power factor controller is 450W. The circuit shown  by the schematic diagram below : This is a simple circuit because  this circuit uses […]

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