Reference voltage source

Details Reference voltage source Reference voltage source

1992-04-03

1992-12-29

Stephan, Steven L.

Electricity: power supply or regulation systems

External or operator controlled

Using an impedance as the final control device

323352, G05F 308

Patent

active

051754908

ABSTRACT:
A reference voltage source which provides a plurality of reference voltages with equal step size between voltages despite loads connected to the reference voltage source. The reference voltage source is composed of a plurality of slave resistors connected in series to produce a plurality of output nodes and a plurality of master resistors connected in series to produce a plurality of compensation nodes. Each compensation node corresponds with one of the output nodes. A compensation resistor connects between a compensation node and the corresponding output node. A current flows through the slave resistors to generate a reference voltage at each output node. Another current flows through the master resistors and generates at each compensation node a compensation voltage that differs from the reference voltage at the corresponding output node by a magnitude sufficient to cause a compensation current to flow through the associated compensation resistor into the corresponding output node and offset a load current drawn from the output node by a load connected to the output node.

REFERENCES:
patent: 4364006 (1982-12-01), Makaba et al.
patent: 4641081 (1987-02-01), Sato et al.
patent: 4663584 (1987-05-01), Okada et al.
patent: 4804941 (1989-02-01), Yoshii
patent: 4833342 (1989-05-01), Kiryu et al.
T. Takemoto et al., "A Fully Parallel 10-Bit A/D Converter with Video Speed".

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