Electronic switch

Details Electronic switch Electronic switch

1998-08-24

2000-05-09

Gaffin, Jeffrey

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307139, H01H 4700

Patent

active

060607939

ABSTRACT:
An electronic switch has an input terminal, an output terminal and an electronic switch unit between the input terminal and the output terminal controlled by a control circuit which extends from its anode to its trigger and is under the control of an actuator which the user can operate directly or indirectly. There is a current limiter resistor in series with said control circuit. The value of the current limiter resistor is less than the value of the voltage on triggering of the electronic switch unit divided by the minimal trigger current needed by the electronic switch unit for such triggering. It is in the order of 40 ohms at most, for example. Applications include controlling a load without generating spurious harmonics which are a problem on the mains supply.

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G. Hall "Triacs can misfire with the wrong triggering", vol. 45, No. 544, Jun. 1973.
Stevens "A.C. full-wave static switc", vol. 10, No. 1, Jan. 1977.
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Mc Nulty Power switching using solid-state relay, Mar. 26-30, 1973.
Howell et al "Applying SCR's to Consumer Products", vol. 25, No. 7, Jul. 1966.

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