Free Simple Circuit Diagram
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 […]
Read more
this is a circuit of Step-Down Charge Pump Regulator for USB Powered Devices. The critical design parameter of this circuit is the circuit area. To solve this problem we can use Charge pump step-down circuit. This circuit only requires the charge pump controller and four ceramic capacitors. So it is a low cost circuit because of the low cost of […]
Read more
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 […]
Read more
This is a circuit that produces constant current constant voltage SMPS. To efficiently charge a battery, we can use constant current constant voltage SMPS. This circuit produces 600 mA at constant current mode and 7.2V at constant voltage mode. Here is the circuit: The operation of this circuit is simple, When the load impedance is low, then the output current […]
Read more