Power supply circuit

Details Power supply circuit Power supply circuit

2006-07-04

2006-07-04

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S274000

Reexamination Certificate

active

07071663

ABSTRACT:
A power supply circuit relating to the present invention comprises a differential amplifier for feeding out a voltage as a control voltage in accordance with a difference between a feedback voltage commensurate with an output voltage and a reference voltage, an output current control element for feeding out an output current in accordance with the control voltage fed thereto from the differential amplifier, an output line by way of which the output current is supplied to a load, a feedback line by way of which a voltage on the output line is fed back as the feedback voltage to the differential amplifier, the feedback line connected to the output line, and a clamping circuit for maintaining the control voltage so as not drop below a predetermined value.

REFERENCES:
patent: 6208123 (2001-03-01), Sudo
patent: 6333623 (2001-12-01), Heisley et al.
patent: 08-190437 (1996-07-01), None
patent: 2000-22456 (2000-01-01), None

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