Current limit sense circuit and method for controlling a transis

Details Current limit sense circuit and method for controlling a transis Current limit sense circuit and method for controlling a transis

1994-08-01

1996-04-02

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Signal transmission integrity or spurious noise override

327365, H03K 1716

Patent

active

055044484

ABSTRACT:
A current limit circuit (10/40) for controlling a power transistor (12) has been provided. The current limit circuit includes circuitry which is responsive to a voltage appearing across the drain and source electrodes of the power transistor for providing an appropriate voltage at the gate electrode of the power transistor when a load is de-coupled from the power transistor. This has the effect of preventing excessive transient current when the load is subsequently coupled to the power transistor. Additionally, the current limit circuit includes circuitry for limiting the current flowing through the power transistor via a sense circuit when the load is coupled to the power transistor.

REFERENCES:
patent: 4275701 (1981-06-01), Arguello et al.
patent: 4567537 (1986-01-01), Kalkhof et al.
patent: 5027004 (1991-06-01), Palara
patent: 5032774 (1991-07-01), Juzswik
patent: 5175489 (1992-12-01), Mizvide
patent: 5347169 (1994-09-01), Preslar et al.

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