Voltage regulator circuit

Details Voltage regulator circuit Voltage regulator circuit

1982-02-26

1983-11-01

Shoop, William M.

Electricity: power supply or regulation systems

Input level responsive

Using a linearly acting final control device

323273, 323316, G05F 156

Patent

active

044132263

ABSTRACT:
An integrated voltage regulator circuit for providing a DC regulated output voltage which rejects perturbations in the supply voltage, comprising a current source, and a load circuit coupled with outputs of the current source which is referenced to ground potential, and a frequency compensation circuit coupled across the current source which increases the frequency response of the voltage regulator circuit. The current source includes first and second interconnected complementary type current mirrors wherein said first current mirror comprises a plurality of PNP current sourcing transistors having commonly connected bases. The bases of the PNP transistors are coupled to an external terminal. An external capacitor is connected between the external terminal and the supply voltage to overcome parasitic base-substrate capacitance inherent to the PNP transistors and improve the circuits ripple rejection performance.

REFERENCES:
patent: 3509449 (1970-04-01), Andren
patent: 3735240 (1973-05-01), Davis et al.
patent: 3939399 (1976-02-01), Funatsu et al.
patent: 4341990 (1982-07-01), Davis

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