Linear voltage regulator with a transistor in series with...

Details Linear voltage regulator with a transistor in series with... Linear voltage regulator with a transistor in series with...

2011-01-04

2011-01-04

Behm, Harry (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S303000

Reexamination Certificate

active

07863874

ABSTRACT:
A linear voltage regulator is provided having a first transistor connected between a terminal for an input voltage and a terminal for an output voltage, a reference voltage source for producing a reference voltage, a first resistor, a second resistor, a second transistor, wherein the first resistor, the second resistor, and the second transistor are series-connected between the terminal for the output voltage and a reference voltage, and constitute a voltage divider, wherein a divided output voltage is present at a tap of the voltage divider, and also having a differential amplifier with an inverting input and a non-inverting input, wherein the inverting input is connected to the reference voltage source, the non-inverting input is connected to the tap of the voltage divider, and an output terminal of the differential amplifier is connected to a control terminal of the first transistor.

REFERENCES:
patent: 5936388 (1999-08-01), Casper
patent: 6140805 (2000-10-01), Kaneko et al.
patent: 6218819 (2001-04-01), Tiwari
patent: 7019585 (2006-03-01), Wilson et al.
patent: 2005/0189983 (2005-09-01), Sivero et al.

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