A control loop system is provided that employs an active DC output control circuit that more accurately calibrates the desired voltage at a load, e.g. 3.3 volts, by adjusting a trim pin on a DC/DC converter.

 
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< Method for actuation, and actuating circuit for a switch in a power factor correction circuit

> PWM signal generating circuit and power supply apparatus comprising such PWM signal generating circuit

> Power supply circuit, power supply control circuit, and power supply control method
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