Constant voltage control device

Details Constant voltage control device Constant voltage control device

1996-08-15

1998-04-14

Berhane, Adolf

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

G05F 316

Patent

active

057396809

ABSTRACT:
The present invention relates to a constant voltage control device for preventing parasitic transistors from operating, which comprises a constant voltage generating section, an undervoltage lock-out section, an operation control section, and a supply voltage control section. According to the present invention, parasitic transistors induced during the operation of a switching transistor made of a lateral transistor are prevented from operating by feedback of a signal derived from the Vref signal output from the constant voltage generating section to the operation control section. Unwanted power consumption by the parasitic transistors is reduced and malfunction resulting therefrom is prevented.

REFERENCES:
patent: 4975823 (1990-12-01), Rilly et al.
patent: 5134355 (1992-07-01), Hastings
patent: 5359281 (1994-10-01), Barrow et al.
patent: 5513088 (1996-04-01), Williamson
patent: 5546300 (1996-08-01), Lee et al.
patent: 5615093 (1997-03-01), Nalbant

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