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Circuits designed by David Johnson, P.E.
Last Updated on:
Saturday, December 23, 2017 03:21 PM
List of Dave's Circuit Designs
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AC Power Control Circuits |
SOLID STATE
RELAY REQUIRES ONLY 50uA DRIVE CURRENT
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This circuit demands a control current
that is 100 times smaller than that needed by a typical optically isolated solid state
relays. It is ideal for battery-powered systems. Using a combination of a high current
TRIAC and a very sensitive low current SCR, the circuit can control about 600 watts of
power to load while providing full isolation and transient protection. |
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Click
on Drawing Below to view PDF version of Schematic |
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