Bias voltage converter

Details Bias voltage converter Bias voltage converter

2008-03-31

2008-09-30

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C323S282000, C323S351000

Reexamination Certificate

active

07429850

ABSTRACT:
A circuit to generate a bias voltage, the circuit including an inductor, a first capacitor associated with the second inductor node, a diode, and a second capacitor being associated with ground, the second capacitor including a second capacitor node, a switch configured to connect the inductor current to ground when closed. The first capacitor and the second capacitor become charged via the trigger resistor by the inductor current until the trigger node reaches the trigger threshold and the trigger closes the switch when the trigger threshold is reached. The inductor is drained when the switch is opened and, when the inductor current reaches zero, an inductor voltage provides a negative voltage step at the trigger node via the first capacitor and when the negative voltage step is provided to the trigger node, the trigger directs the switch to close.

REFERENCES:
patent: 3987989 (1976-10-01), Geiger
patent: 4439692 (1984-03-01), Beekmans et al.
patent: 4553047 (1985-11-01), Dillinger
patent: 4843339 (1989-06-01), Burt et al.
patent: 6515880 (2003-02-01), Evans et al.
patent: 7126314 (2006-10-01), McGinty et al.
patent: 7199560 (2007-04-01), Cheung et al.
patent: 2001/0001230 (2001-05-01), Proebsting
patent: 0 522 879 (1993-01-01), None

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