Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1997-06-04
1999-01-12
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 97, 363131, 361 90, H02M 3335, H02M 324, H02H 320
Patent
active
058597689
ABSTRACT:
A single input pin (48) provides multi-functional features for programming a power supply (10). By connecting the appropriate interface circuit (92, 100, or 112) to the single input pin (48), the power supply (10) is programmed for specific behaviors during power up and toggling of an on/off switch (96, 108). In one mode of operation a light emitting diode (106) in the interface circuit (100) is optically coupled to a microprocessor for signaling the closure of the on/off switch (108), allowing the microprocessor to control the power supply (10) through an opto-coupler (102). In another mode of operation, the single on/off switch (96) controls the power supply (10). In yet another mode of operation, Zener diode (118) in the interface circuit (112) controls the power supply (10) during brown-out and black-out conditions.
REFERENCES:
patent: 4980791 (1990-12-01), Alberkrack et al.
patent: 5313381 (1994-05-01), Balakrishnan
patent: 5335162 (1994-08-01), Martin-Lopez et al.
SGS-Thomson Microelectronics Data Sheet, "VIPer100, SMPS Primary I.C.", 14 pages.
Alberkrack Jade H.
Hall Jefferson W.
Atkins Robert D.
Dover Rennie William
Motorola Inc.
Patel Rajnikant B.
Wong Peter S.
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