Method and apparatus for output voltage regulation in...

Details Method and apparatus for output voltage regulation in... Method and apparatus for output voltage regulation in...

2006-01-10

2006-01-10

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

Reexamination Certificate

active

06985368

ABSTRACT:
A voltage sense circuit and power supply regulation technique. In one aspect, a voltage sense circuit utilized in a power supply regulator includes a transformer including a sense winding and an output winding. A first diode is coupled to the sense winding, a first resistor is coupled to the first diode and a first capacitor coupled to the first resistor and the first diode. A second diode coupled to the first capacitor, the first resistor and the first diode. A second capacitor coupled to the second diode such that a voltage across the second capacitor is representative of a voltage across the output winding. In one embodiment, the first capacitor is discharged in a substantially shorter period of time than the second capacitor such that the second capacitor is charged substantially without influence from leakage inductance energy from the transformer.

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Power Integrations, Inc. “Simple Bias Supplies Using the TOP200”, Data Book and Design Guide, pp. 3-191-3-196, 1996-97.

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