Apparatus and method to synchronize switching frequencies of...

Details Apparatus and method to synchronize switching frequencies of... Apparatus and method to synchronize switching frequencies of...

2007-06-26

2007-06-26

Sterrett, Jeffrey (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S267000, C323S272000

Reexamination Certificate

active

11132068

ABSTRACT:
A power supply has a plurality of switching regulators providing a like plurality of regulated output voltages. The oscillators of the switching regulators are synchronized with one another by a synchronization signal. A synchronization signal detector is provided on one or more of the switching regulators to shift the switching frequency of the oscillator to a lower frequency upon detection of a synchronization signal.

REFERENCES:
patent: 6911808 (2005-06-01), Shimamori
patent: 6922043 (2005-07-01), Manabe et al.
patent: 7075279 (2006-07-01), Manabe et al.

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