Noise suppression in relay-switched motors

Details Noise suppression in relay-switched motors Noise suppression in relay-switched motors

1997-03-12

1999-02-09

Masih, Karen

Electricity: motive power systems

Automatic and/or with time-delay means

Moisture content or wetness

318629, 318 65, 318794, 318795, 318DIG2, 318521, 310 50, 361 50, G05B 500

Patent

active

058699422

ABSTRACT:
Noise suppression system for a relay-switched windshield wiper, wherein reversal of current to a motor driving the wiper causes the motor to reverse. Filters contained within the motor, together with filters and shielding located external to the motor, suppress rf emissions.

REFERENCES:
patent: 4348603 (1982-09-01), Huber
patent: 4673851 (1987-06-01), Disser
patent: 4829298 (1989-05-01), Fernandes
patent: 4948242 (1990-08-01), Desmond et al.
patent: 5583730 (1996-12-01), Gershen et al.
"Radiation Emissions From 10 KHz to 1000 MHz, EMC-Component Test Procedure", General Motors Corporation, 9114p (May, 1995).

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