| 摘要 |
A trickle power supply for a light switch module according to the invention enables power to an electronic circuit to be taken directly off the hot line. The power supply operates under what is referred to as the "switched leg theory". All power is taken off the standard switched leg of the light circuit. The power supply bleeds enough current to power its electronic circuitry without turning on the load device, i.e., the light. At the same time, the maximum current to the load is limited to prevent shorting out of the power supply which would effectively disable the switch module.
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