Document Type and Number:
Japanese Patent JPH0510513
Kind Code:
Y2
Abstract:
Electric control apparatus (20) for equipment (1) comprising a driving circuit (5) for generating a signal (S1) to drive the equipment as installed in a vehicle, the driving circuit including circuitry having a first specified working voltage range, and a breaking circuit (6) operatively interposed between the driving circuit and the equipment, the breaking circuit including a first switching circuit (100) for operatively interrupting the supply of the drive signal to the equipment under a condition that the supply voltage (Vdd) is lowered below a first predetermined level (V1) set lower than a normal level with respect to the first working voltage range, the first switching circuit including circuitry having a second specified working voltage range not exceeding the upper limit of the first working voltage range, wherein the breaking circuit further includes a second switching circuit (10) operatively interposed between the first switching circuit and the equipment, the second switching circuit operatively interrupting the supply of the drive signal to the equipment under a condition that the supply voltage is lowered below a second predetermined level (V2) set lower than the first predetermined level and higher than the lower limit of the second working voltage range.
Application Number:
JP16170785U
Publication Date:
March 15, 1993
Filing Date:
October 21, 1985
Export Citation:
International Classes:
H02H11/00; B60R16/02; B60R16/03; B60R16/04; F02D41/00; F02D41/20; F02D41/22; F02D41/30; G01R19/165; G05B9/02; H02H3/24; (IPC1-7): H02H3/24; B60R16/02; B60R16/04; F02D41/00; F02D41/20; G01R19/165
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