Protective circuit

Details Protective circuit Protective circuit

1985-06-26

1987-05-05

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 9, 361 31, 361 93, 361 18, 318434, H02H 308

Patent

active

046635378

ABSTRACT:
A protective circuit for a manually controllable adjusting device for motor vehicle seats, which is driven by an electric motor, has a current sensor (11) with an output voltage which corresponds to the sum of all instantaneous currents flowing in the motor electrical circuit of the adjusting device. Furthermore, a threshold switch stage (14, 16, 24, 25, 26) which responds to a predetermined value of the output sensor (11) and a switch (12) which lies in the electrical circuit of the electric motor are provided. This switch (12) can be switched from its closed condition into its opened condition by the threshold switch stage when a threshold value is exceeded.

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patent: 4547715 (1985-10-01), Li

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