Welsh & Flaxman LLC
MOSFET based, high voltage, electronic relays for AC power switching and inductive loads
A MOSFET based, high voltage, high current AC electronic relay. The relay includes a MOSFET switching circuit selectively switching between switch conducting and switch isolation and a first transformer coupled to the MOSFET switching circuit. The first transformer selectively applies a predetermined first voltage to the MOSFET switching circuit which establishes the MOSFET switching circuit in switch conducting. The relay further includes a second transformer coupled to the MOSFET switching circuit. The second transformer selectively applies a predetermined second voltage to the MOSFET switching circuit which establishes the MOSFET switching circuit in switch isolation. The relay is also provided with a control circuit linked to and controlling operation of the first transformer and second transformer.
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James M.
Lewis