Load reactance element driving device

Details Load reactance element driving device Load reactance element driving device

1983-09-19

1986-09-02

Dolinar, Andrew M.

Internal-combustion engines

High tension ignition system

Using capacitive storage and discharge for spark energy

123606, 123498, 315209CD, 315209SC, 318696, F02P 308

Patent

active

046089586

ABSTRACT:
A device for driving a load reactance element, such as a piezoelectric actuator for a fuel injection system, including a series reactance element connected in series with the load reactance element, and a resonance circuit formed by the load reactance and the series reactance. First and second switching elements are connected between the resonance circuit and the power source or ground potential. Each of the first and second switching elements is rendered conductive only during a half cycle of resonance. The directions of the load current flowing through the load reactance element are switchable by making alternately the first and second switching elements conductive.

REFERENCES:
patent: 3489129 (1970-01-01), Issler et al.
patent: 3842816 (1974-10-01), Vargas
patent: 4149508 (1979-04-01), Kirk, Jr. et al.

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