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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/081619
Kind Code:
A bidirectional switch for the control of power from an AC source to a load is described. The approach uses power MOSFETs in a bidirectional switch subcircuit configuration having an optically coupled, electrically floating control circuit that self-biases the switches into the "on" state and uses an optically coupled control element to force the switches into the "off" state. The time constant of the control circuit is fast enough to allow phase control as well as on-off control. A boost circuit is included to ensure that the control voltage exceeds a threshold voltage of the MOSFETs to force an off state. A plurality of subcircuits can be easily cascaded to provide improved performance.

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TELEFUS, Mark (22 Woodacres Ct, Orinda, CA, 94563, US)
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Application Number:
Publication Date:
June 06, 2019
Filing Date:
October 27, 2017
Export Citation:
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INTELESOL, LLC (696 San Ramon Valley Blvd, Suite 117Danville, CA, 94506, US)
International Classes:
H02M1/08; G05F1/45; H03K17/785
Attorney, Agent or Firm:
WISNOSKY, Mark (P.O. Box 24, Palomar Mountain, CA, 92060, US)
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