Soft start circuit

Details Soft start circuit Soft start circuit

1991-02-08

1991-11-05

Pascal, Robert J.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072966, 307310, H03K 300

Patent

active

050633031

ABSTRACT:
A soft start circuit for hot installation of modules into an active bus. A very low R.sub.ds MOSFET provides bias through its drain to source path from a bus supply. This path is activated by a gate bias network which charges a capacitor from a supply located on the bus. Further control of the module supply is obtained by circuitry which permits addressing of the module to turn it off or on, temperature sensing to provide thermal protection and current sensing to provide short circuit protection.

REFERENCES:
patent: 4540893 (1985-09-01), Bloomer
patent: 4987318 (1991-01-01), Burke et al.

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