Trickle power supply

Details Trickle power supply Trickle power supply

H - Electricity

05

B

H05B 37/02 (2006.01) H02M 3/155 (2006.01) H02M 5/257 (2006.01) H02M 7/155 (2006.01)

Patent

CA 2195296

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.

Alimentation d'entretien pour un module d'interrupteur de lampe alimentant directement un circuit électronique à partir de la ligne sous tension. L'alimentation se fait selon la «théorie de dérivation à interrupteur». Tout le courant provient de l'interrupteur standard du circuit d'éclairage. Assez de courant s'échappe de l'alimentation pour alimenter ses circuits électroniques sans avoir à allumer la charge c.-à-d. la lumière. En même temps, le courant maximum se rendant à la charge est limité pour empêcher l'alimentation de court-circuiter, ce qui mettrait le module d'interrupteur efficacement hors circuit.

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