Authors

Allen E. Turner

Document Type

Patent

Publication Date

3-31-1998

Patent Number

patent number 5734543

Abstract

A solenoid device, for example in an electrical contactor system, is provided for use with an alternating current power source. An electrical contactor includes an electromagnetic coil assembly configured to generate a non-zero effective magnetic force in response to an alternating current signal applied across the coil assembly. A switch proximate the coil assembly is configured to operate responsively to the effective magnetic force. A wave shaping device is configured to introduce a direct current component to an alternating current signal provided by the alternating current power source and to output at least part of the alternating current signal modified by the direct current component across the coil assembly.

Application Number

08/622758

Assignees

Clemson University (Clemson, SC)

Filing Date

1996-03-27

Primary/U.S. Class

361/154

Other/U.S. Class

361/187

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