Circuit for fixing peak current of an inductor and method...

Details Circuit for fixing peak current of an inductor and method... Circuit for fixing peak current of an inductor and method...

2007-03-19

2009-06-23

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S139000

Reexamination Certificate

active

07551008

ABSTRACT:
The circuit for fixing the peak current of an inductor includes an operating current, a ramp-type boost converter and a comparator. The magnitude of the operating current is proportional to that of the voltage source of the inductor. The ramp-type boost converter is connected to the operating current. One input end of the comparator is connected to a reference voltage, and the other end is connected to the output of the ramp-type boost converter. The output of the comparator is connected to the gate of a power transistor, which controls the turn-on time of the inductor.

REFERENCES:
patent: 5424666 (1995-06-01), Palara et al.
patent: 5828245 (1998-10-01), Brambilla et al.
patent: 6982574 (2006-01-01), Harriman rt al.

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