Circuit arrangement for regulating the load current of a power M

Details Circuit arrangement for regulating the load current of a power M Circuit arrangement for regulating the load current of a power M

1995-11-15

1997-08-12

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

323266, 323277, G05F 110

Patent

active

056569688

ABSTRACT:
In a circuit arrangement for regulating the load current of a power MOSFET, the drain-source voltage of the power MOSFET is imaged onto the input of a second MOSFET connected between a gate terminal and source terminal of the power MOSFET. When the input voltage exceeds the cut-off voltage, then the gate-source voltage at the power MOSFET is regulated back to a value that corresponds to the sum of the cut-off voltages of the second MOSFET and a third MOSFET. The gate terminals of third MOSFET and the power MOSFET are connected to one another.

REFERENCES:
patent: 4899098 (1990-02-01), Gariboldi
patent: 5481179 (1996-01-01), Keeth
patent: 5497285 (1996-03-01), Nadd
patent: 5523714 (1996-06-01), Topp et al.
Patent Abstracts of Japan--E-1005, Nov. 22, 1990 vol. 14/No. 533.

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