Current detection start-up circuit for reference voltage circuit

Details Current detection start-up circuit for reference voltage circuit Current detection start-up circuit for reference voltage circuit

1997-10-24

1999-10-19

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327543, H01L 700

Patent

active

059695498

ABSTRACT:
An improved current detection start-up circuit for a reference voltage circuit which restarts a reference voltage circuit when a reference voltage drops by a predetermined level, i.e., turns off, due to noise or a variation of a system voltage. The circuit includes: a current detection circuit for detecting the current being applied to a reference voltage circuit; and a start-up circuit for starting the reference voltage circuit when the current detected by the current detection circuit is below a predetermined level.

REFERENCES:
patent: 4342926 (1982-08-01), Whatley
patent: 5565811 (1996-10-01), Park et al.
patent: 5686825 (1997-11-01), Suh et al.

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