Free Simple Circuit Diagram
To charge lead-acid batteries we can use this circuit that consist of a current-limited power supply and a flyback converter topology. Here is the schematic diagram of the circuit : Isolation and voltage input range flexibility are provided by the flyback transformer, even at the battery voltage higher than supply voltage. MAX471 current sense amplifier is used to monitor the […]
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This is compact power factor controller circuit. It stabilizes device’s electrical demand to give best power factor characteristic of many types of loads. In many application, a direct rectification of the AC line followed by bulk capacitor filtering is used to get the high DC voltage. This capacitor filtering will produce a poor power factor and current spike that distort […]
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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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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 […]
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