Capacitor dropping power supply with shunt switching

Details Capacitor dropping power supply with shunt switching Capacitor dropping power supply with shunt switching

H - Electricity

02

M

H02M 7/155 (2006.01) H02M 7/02 (2006.01)

Patent

CA 2492580

A capacitor dropping power supply is disclosed wherein diode power dissipation is avoided due to the unique combination of the diode with the capacitive dropping power supply coupled with a silicon control rectifier ("SCR"). Thus, internal power dissipation is minimized when power is not needed by the load by shorting out the diode. This is accomplished in the form of a voltage regulator wherein a zener diode is used to turn on the SCR when the output voltage exceeds a predetermined level. The SCR provides a shunt switching operation, shunting input current and providing a sufficient amount of power to supply the load and shorting out voltages above a set amount. As a result, there is a power savings when power is not being supplied to the load.

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