Low power start-up circuit for current mirror based...

Details Low power start-up circuit for current mirror based... Low power start-up circuit for current mirror based...

2007-01-02

2007-01-02

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

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

Reexamination Certificate

active

10331390

ABSTRACT:
Start-up circuit for current mirror circuits to facilitate transition from a zero-current state to an operation state. The start-up circuit includes two sets of current control devices. A set is coupled to each leg of the current mirrored circuit to provide a bias on start-up. The current control devices are coupled together to mirror the current that continues during the operational state such that the start-up circuit in combination with the operating circuit do not draw more current in the operational state than the operating circuit would normally draw in the operational state.

REFERENCES:
patent: 5914868 (1999-06-01), Han et al.
patent: 6002245 (1999-12-01), Sauer
patent: 6191662 (2001-02-01), Volk
patent: 6229382 (2001-05-01), Kojima
patent: 6400185 (2002-06-01), Pavan
patent: 6563295 (2003-05-01), Juang
patent: 6600303 (2003-07-01), Ikehashi
patent: 2003/0122629 (2003-07-01), Fulton et al.

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