| 主权项 |
1. An electrical power converter circuit comprising:
An electrical power input connection providing electrical connection to the fire line of alternate current (AC) main power source; An electrical charge storage device that comprises one charge storage component or a plurality of charge storage components, where a charge storage component is either a capacitor or a battery; An electrical switch that controls the electrical impedance between said electrical power input connection and said electrical charge storage device so that, when the electrical switch is turned on, a low impedance electrical current path can be formed from the fire line to the electrical charge storage device, and, when the electrical switch is turned off, said terminal of the charge storage device is substantially decoupled from the fire line; and An electrical switch control circuit that turns on or turns off said electrical switch in order to control the voltage on said charge storage device toward a target storage voltage (Vtg) that can be significantly different from peak voltages on the fire line, where said electrical switch control circuit can turn on said electrical switch when the voltage on the fire line is at a level that can change the voltage applied on said charge storage device toward Vtg, and turns off the electrical switch when the voltage on the fire line is at a level that can change the voltage applied on said charge storage device away from Vtg. |
