Control circuit for an actuator

Internal-combustion engines – Charge forming device – Fuel injection system

Reexamination Certificate

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Details

C361S143000, C361S144000, C361S146000, C361S149000

Reexamination Certificate

active

07415971

ABSTRACT:
In a control circuit for at least one actuator, in particular for a capacitive actuator of an injection system of an internal combustion engine, a control current can be applied to the actuator.The control circuit has an inductor, e.g., having a core and having multiple windings, the windings being designed and connected to the control circuit such that a control current flowing into the actuator and a control current flowing out of the actuator each flow through different windings of the inductor, and a magnetic flux induced in the inductor or its core by the control current flowing into the actuator and a magnetic flux induced in the inductor or its core by the control current flowing out of the actuator mutually compensate one another.

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International Search Report, PCT International Patent Application No. PCT/EP2005/052927, dated Sep. 21, 2005.
Written Opinion of the International Search Authority, PCT International Patent Application No. PCT/EP2005/052927, dated Sep. 21, 2005 (English-language translation provided).

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