Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1996-01-02
1997-12-02
Berhane, Adolf
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323285, G05F 156
Patent
active
056940297
ABSTRACT:
A switching power supply system for digitally measuring switching regulator current is provided. The switching power supply contains a pulse-width-modulator (PWM) controller for providing a series of constant voltage and constant frequency pulses to a tank circuit. The tank circuit provides a DC current to an electronic system. The duty cycle of the pulses, however, is varied, depending on the current drain of the electronic system. A counter is attached to an output of the PWM controller to provide a count that is relative to the width of an output pulse from the PWM controller. The count is provided to a power control system that utilizes the value of the count to determine the current output of the PWM controller. The power control system is also connected to the output of the tank circuit to monitor the voltage output of the PWM controller. The power control system utilizes the determined current output, and the monitored voltage output to determine the instantaneous power output of the PWM controller.
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Application Note AN6915.1 entitled "Application of the CA1524 Series Pulse-Width Modulator Ics", Apr. 1994 by Harris Semiconductor.
Hayes Stuart
Titus Joshua
Berhane Adolf
Dell USA L.P.
Garrana Henry N.
Kahler Mark P.
Roberts Diana L.
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