Circuit for measuring the cut-off time of an electronic system

Details Circuit for measuring the cut-off time of an electronic system Circuit for measuring the cut-off time of an electronic system

1997-07-16

1999-05-04

Miska, Vit

Horology: time measuring systems or devices

Controlled by a disparate device

Vehicle or vehicle part

368 10, 368113, 368121, 324105, G04F 800, G04B 4700, G01Y 144

Patent

active

059011149

ABSTRACT:
A circuit for measuring the duration of a cut-off period in the power supply to an electronic system, for example the control system of a motor vehicle starter, comprises a voltage splitting bridge and a processing unit receiving the output of the splitting bridge. The bridge supply voltage is derived from the power supply to the electronic system, and the bridge has a branch which includes a temperature variable resistor. The processing unit determines the duration of the cut-off period as a function of the value of the output voltage from the splitting bridge at the end of a cut-off period.

REFERENCES:
patent: 4450719 (1984-05-01), Nishimura et al.
French Search Report dated Mar. 10, 1997.

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