Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2005-08-01
2008-09-02
Han, Jessica (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S274000, C323S284000, C327S392000
Reexamination Certificate
active
07420357
ABSTRACT:
A hysteretic DC/DC converter is proposed that operates at a high switching frequency without producing undesired pulse bursts at the output. The converter has a converter power stage with a supply voltage input, a controlled voltage output and an enable input. A comparator has a reference voltage input, a feedback input and an output, and a gating circuit connected between the output of the comparator and the enabling input of the converter power stage. The gating circuit inhibits as a function of load requirements the propagation of enabling pulses from the output of the comparator to the enabling input of the converter power stage. By gating the output of the comparator in a way to separate the output from the enabling input of the converter power stage immediately after the start of each conversion pulse, the generation of further pulses immediately after each conversion pulse is prevented, thereby keeping the output voltage ripple low.
REFERENCES:
patent: 5399958 (1995-03-01), Iyoda
patent: 6650825 (2003-11-01), Kitamura
patent: 6791306 (2004-09-01), Walters et al.
patent: 6903912 (2005-06-01), Kranister et al.
patent: 2002/0015319 (2002-02-01), Hartular et al.
patent: 2004/0080962 (2004-04-01), Charych
patent: 694 22 138 (2000-04-01), None
patent: 0 759 653 (1997-02-01), None
TDA 16846 Data Sheet of Infineon Technologies, Version 1.3, Jul. 2003, pp. 1-28.
Brady III Wade J.
Franz Warren L.
Han Jessica
Pham Emily
Telecky , Jr. Frederick J.
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