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Patent Searching and Data


Title:
RELAY WITH INTEGRAL PHASE CONTROLLED SWITCHING
Document Type and Number:
WIPO Patent Application WO/2015/089126
Kind Code:
A3
Abstract:
A relay circuit (100) includes a power supply (14) to apply an AC input line voltage to the relay circuit, a relay coil (22) and at least one pair of contacts (24) actuated by the relay coil. A zero cross detection circuit (12) and a control logic circuit (16) for the relay circuit are also disclosed. The control logic circuit determines a zero crossover point in response to an output signal from the zero crossover detection circuit, and controls a relay coil to actuate the relay contacts to switch a load at the zero crossover point of a load current when the load is connected to the at least one pair of relay contacts, such that the voltage and current across the relay contacts is zero.

Inventors:
AHMED, Mohammad S. (220 Skyline Drive, Mechanicsburg, PA, 17050, US)
KOHLER, Raymond Howard (120 West Street, Souderton, Pennsylvania, 18964, US)
BHATT, Ganesh (435 Pulaski Drive, Dallastown, Pennsylvania, 17313, US)
Application Number:
US2014/069437
Publication Date:
October 01, 2015
Filing Date:
December 10, 2014
Export Citation:
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Assignee:
TYCO ELECTRONICS CORPORATION (1050 Westlakes Drive, Berwyn, Pennsylvania, 19312, US)
International Classes:
H02H3/08; H01H9/54; H02H9/00; H03K17/18; H02H3/02
Domestic Patent References:
WO1990010942A11990-09-20
Foreign References:
US20030071522A12003-04-17
DE4412640A11995-10-19
CN103389407A2013-11-13
Attorney, Agent or Firm:
STROUD, Adam L. et al. (The Whitaker LLC, 4550 New Linden Hill RoadSuite 14, Wilmington Delaware, 19808, US)
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