Integrated circuit comprising a switchable current generator

Details Integrated circuit comprising a switchable current generator Integrated circuit comprising a switchable current generator

1989-12-19

1990-11-13

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323315, 330257, 330288, G05F 322

Patent

active

049704524

ABSTRACT:
An integrated circuit comprising a current generator which is switchable to at least two modes. A first stage comprises a current mirror (T.sub.3, T.sub.4) having two branches. A differential pair second stage (T.sub.1, T.sub.2) is either in a balanced state (current output zero) or in an unbalanced state (current source R.sub.10, T.sub.10 supplying a current I.sub.1). In the balanced state a second current source (R.sub.20, T.sub.20) supplies a current which maintains the currents in the two branches of the current mirror constant.

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patent: 4714900 (1987-12-01), Sata
patent: 4740743 (1988-04-01), Reisinger et al.
patent: 4818901 (1989-04-01), Young et al.

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