Driver circuit with automatic offset compensation of an...

Details Driver circuit with automatic offset compensation of an... Driver circuit with automatic offset compensation of an...

2008-03-18

2008-03-18

Lam, Tuan T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C372S029014, C372S029015, C372S038070, C250S205000

Reexamination Certificate

active

07345513

ABSTRACT:
A driver circuit is provided, which includes a differential amplifier whose output signal controls the driving input signal, a reference signal generator that supplies a reference input of the differential amplifier, an external feedback that applies a signal, which is dependent on the output signal, to a feedback input of the differential amplifier, an adapter circuit, and an internal feedback activated in a compensation mode as an alternative to the external feedback, which internal feedback provides a signal to both the feedback input and the adapter circuit even for input signals that do not exceed the first threshold. The adaptor circuit generates and stores a compensation signal that compensates an offset signal acting alone at the reference input when the reference signal generator is switched off, and feeds the stored compensation signal, together with a reference signal, to the reference input or feedback input when the external feedback is activated.

REFERENCES:
patent: 4813048 (1989-03-01), Yamane et al.
patent: 4856011 (1989-08-01), Shimada et al.
patent: 5015836 (1991-05-01), Van Antwerp
patent: 5661739 (1997-08-01), Ohashi
patent: 5966395 (1999-10-01), Ikeda
patent: 6392215 (2002-05-01), Baumgartner et al.
patent: 6549265 (2003-04-01), Sakakibara et al.
patent: 6778784 (2004-08-01), Schrodinger
patent: 2003/0201950 (2003-10-01), Sakamoto et al.
patent: 2005/0135440 (2005-06-01), Ikeda et al.
patent: 2005/0141576 (2005-06-01), Ikeda et al.
patent: 40 24 002 (1992-01-01), None
patent: WO 2004/040721 (2004-05-01), None

Affiliated with

Also associated with

Rating

Driver circuit with automatic offset compensation of an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driver circuit with automatic offset compensation of an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driver circuit with automatic offset compensation of an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2799791