Power supply for positive and negative output voltages

Details Power supply for positive and negative output voltages Power supply for positive and negative output voltages

2005-12-06

2005-12-06

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S222000

Reexamination Certificate

active

06972547

ABSTRACT:
A predetermined positive output voltage to be obtained by raising an input power supply voltage is outputted by switching a switch connected in series with a coil in a switching power supply circuit. On the other hand, in a negative output voltage generating circuit, a negative output voltage, which is equal in magnitude to a predetermined voltage, is generated according to a setting voltage, which is lower than the positive output voltage by the predetermined voltage, and a voltage that changes with switching.

REFERENCES:
patent: 4459538 (1984-07-01), Arai et al.
patent: 5896284 (1999-04-01), Murasato et al.
patent: 5977753 (1999-11-01), Edwards et al.
patent: 6060869 (2000-05-01), Shimoda
patent: 6222351 (2001-04-01), Fontanella et al.
patent: 2000-91503 (2000-03-01), None

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