Control circuit for bicmos bus drivers

Details Control circuit for bicmos bus drivers Control circuit for bicmos bus drivers

1996-12-11

1998-12-22

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

326 84, 326 86, 327108, 327109, 327432, G05F 110

Patent

active

058523839

ABSTRACT:
The invention relates to a "power on demand" control circuit and the application thereof in a BiCMOS bus driver. The basic object resides in the creation of such a circuit with a low power need and a simple structure. This aim is to be solved by the provision of a control loop comprising a diode series circuit arrangement (D1, D2) and a bipolar transistor (Q2) between the collector and the base of the output transistor (Q1), which is of such a size that in the stable L state the base current of the outlet transistor (Q1) is so selected that the L state is maintained.

REFERENCES:
patent: 4322634 (1982-03-01), Kaire et al.
patent: 4600876 (1986-07-01), Boeckman
patent: 5187386 (1993-02-01), Chang et al.
patent: 5570044 (1996-10-01), Martin et al.

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