Patent ID: 8441824
Filing Date: 2013-05-14
Classification: H02M

Abstract:
1. A method to control the feed rate of a rectified AC pulses in a low DC current power supply including a gated rectifier for outputting gated AC pulses via a charge line selected from a group comprising a current control diode, a zener diode, a transistor, a resistor and combinations thereof, to charge an input capacitor for buffering the feed to a DC voltage regulator connected via its input to said input capacitor; a gate capacitor for accumulating charges of said rectified AC pulses fed via a divider network selected from a group comprising at least one resistor, a diode, a zener diode and combinations thereof for triggering a gate terminal of said gated rectifier; wherein said charges into said gate capacitor are to time said triggering for passing said gated AC pulses through said gated rectifier to charge said input capacitor to a voltage level and a charge capacity commensurate with said voltage regulator and with said low DC current, said method comprising the steps of: a. applying said rectified AC pulses to the anode of said gated rectifier and via said divider network to said gate capacitor; b. charging incrementally said gate capacitor by a predetermined number of charges, each by one rectified AC pulse; c. discharging the aggregated charge including the last of said predetermined charge for triggering said gated rectifier; d. charging said input capacitor to said capacity at a rate of one gated AC pulse per said predetermined number; and e. powering a device consuming said low DC current via said voltage regulator.