Trimmable voltage regulator feedback network

Details Trimmable voltage regulator feedback network Trimmable voltage regulator feedback network

1998-02-23

1999-06-29

Nappi, Robert E.

Electricity: power supply or regulation systems

Output level responsive

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

323316, 323907, G05F 1575

Patent

active

059173114

ABSTRACT:
A trimmable voltage regulator feedback network is arranged as a voltage divider: series-connected resistors are connected between the divider tap and the regulator's output voltage and a fixed resistance is connected between the tap and ground. Severable links are connected across at least two resistors above the tap to allow the regulator output voltage to be trimmed in linearly independent increments with each severed link, thereby simplifying the task of determining which links to sever to attain a desired output voltage. A trimmable resistance is inserted between the divider tap and the circuit being driven to enable the impedance of the network to be adjusted. A regulator including the novel feedback network can provide a temperature-compensated output over the full range of selectable output voltages.

REFERENCES:
patent: 4636710 (1987-01-01), Stanojevic
patent: 4665356 (1987-05-01), Pease
patent: 5252908 (1993-10-01), Brokaw

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