Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Reexamination Certificate
2006-05-16
2006-05-16
Berhane, Adolf (Department: 2838)
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
Reexamination Certificate
active
07046529
ABSTRACT:
A voltage adapter characterized by an advantage of reducing unnecessary power loss induced in standby mode operation and conserving the overall power consumption accordingly. The voltage adapter according to the present invention receives an input voltage and converts the input voltage into an output voltage having a voltage level different from the input voltage, and comprises an EMI filter for suppressing a differential mode noise in the input voltage, a bridge rectifier for performing a full-wave rectification to the input voltage, a transistor switch, a driver for controlling on/off operations of the transistor switch according to a feedback amount derived from the output voltage, and a circuit box for providing a discharge path for the EMI filter, while sampling the input voltage to detect a variation of the input voltage.
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patent: 6493242 (2002-12-01), Riggio et al.
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patent: 6949915 (2005-09-01), Stanley
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Berhane Adolf
Delta Electronics , Inc.
Madson & Austin
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