System and method for triggering an inductive consumer

Details System and method for triggering an inductive consumer System and method for triggering an inductive consumer

1992-12-02

1995-01-17

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

307125, 361187, H01H 4732

Patent

active

053830865

ABSTRACT:
In a system for triggering an inductive consumer, particularly a consumer for controlling an internal combustion engine, the consumer is coupled via a circuit element to a voltage source. A control means triggers the circuit element in the switching mode for a preselected ON duration. Furthermore, means are provided for measuring the current flowing through the inductive consumer. To measure an actual current value, a first current value is measured shortly after the closing operation, and a second current value is measured immediately before the opening operation.

REFERENCES:
patent: 4393888 (1981-10-01), McCarty
patent: 4589401 (1986-05-01), Karim et al.
patent: 4825332 (1989-04-01), Aoki
patent: 5038247 (1991-08-01), Kelley et al.
patent: 5222011 (1993-06-01), Braun

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