Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-05-10
2008-03-11
Laxton, Gary L (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S225000, C363S065000
Reexamination Certificate
active
07342386
ABSTRACT:
A power converter includes multiple phase circuits, each phase circuit includes a power switch for delivering power to an output of the power converter, a current sensor connected to the power switch for sensing a current in the power switch, a duty cycle controller having an output connected to the current sensor, and a low pass filter connected to the current sensor. The low pass filter is configured to produce a substantially direct current signal proportional to the average current in the power switch. Further, the duty cycle controller is configured to receive the direct current signal and control a duty cycle of the power switch in response to the direct current signal thereby balancing the currents in the phase circuits.
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patent: 1265479 (2000-09-01), None
patent: 9-182425 (1997-07-01), None
Astec International Limited
Laxton Gary L
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