Circuit for controlling inductive loads, particularly for the op

Details Circuit for controlling inductive loads, particularly for the op Circuit for controlling inductive loads, particularly for the op

1988-08-22

1990-06-12

Pellinen, A. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

123490, 361189, H01H 4700

Patent

active

049338056

ABSTRACT:
A circuit for controlling an inductive load for an electro-injector of a diesel-cycle internal combustion engine is operated from the vehicle battery and includes a reactive circuit having an energy-storage inductor. A first switch controls the supply of current to the energy-storage inductor and a second switch is provided for connecting the reactive circuit to the inductive load for rapid discharge of the energy stored in the energy-storage inductor load into the inductive so as to inject a current pulse into the load. A by-pass branch circuit is connected between the first switch and the load and includes additional switch for enabling the passage of current from the battery to the load when the first and second switches are simultaneously closed.

REFERENCES:
patent: 4454558 (1984-06-01), Hoddart
patent: 4600966 (1986-07-01), Mueller et al.
patent: 4618908 (1986-10-01), Anttila

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