Semiconductor apparatus for controlling a switching power...

Details Semiconductor apparatus for controlling a switching power... Semiconductor apparatus for controlling a switching power...

2007-08-21

2007-08-21

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S132000

Reexamination Certificate

active

11061743

ABSTRACT:
In a semiconductor apparatus for controlling a switching power supply including a switching element and a switching operation control circuit, the switching operation of the switching element is controlled as follows: a comparison is made between an output voltage of an I-V converter, which detects the current of a control terminal and converts the current into a voltage, and a reference voltage of predetermined upper and lower limit voltages for detecting a standby state, and the switching operation of the switching element is stopped when the output voltage of the I-V converter is lower than the standby detection lower limit voltage, and the switching operation of the switching element is restarted when the output voltage of the I-V converter is higher than the standby detection upper limit voltage.

REFERENCES:
patent: 4063307 (1977-12-01), Stephens
patent: 2002-315333 (2002-10-01), None

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