Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1988-08-15
1989-03-28
Wong, Peter S.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323222, 363 65, G05F 146
Patent
active
048167398
ABSTRACT:
A first converter which includes a switching element operating on a comparatively lower threshold voltage and generating a first output voltage, a second converter which includes a switching element operating on a threshold voltage higher than that of the first conversion unit and generating a second output voltage higher than the first output voltage, and a level shift circuit which provides the switching signal for activating the switching element of the second converter in accordance with generation of the first output voltage.
REFERENCES:
patent: 3913000 (1975-10-01), Cardwell, Jr.
patent: 4257090 (1981-03-01), Kroger et al.
patent: 4290101 (1981-09-01), Hergenhan
patent: 4595873 (1986-06-01), Musil
patent: 4648020 (1987-03-01), Vinciarelli
Kojima Masahiro
Sakurai Tadashi
Bingham Michael D.
Motorola Inc.
Wong Peter S.
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