Patent ID: 7944279
Filing Date: 2011-05-17
Classification: G06K,H02M

Abstract:
1. A charge pump stage, comprising: an RF node configured to provide an RF signal; a capacitor bank having a selectable capacitance, wherein the capacitor bank is electrically coupled to the RF node thereby providing the selectable capacitance thereto; a plurality of current-biased rectifier stages electrically coupled to the RF node and configured to receive the RF signal therefrom, the plurality of current-biased rectifier stages configured to provide a DC output; a DC bus configured to receive the DC output from the plurality of rectifier stages and to provide a supply voltage; a programmable current source configured to provide a plurality of current bias signals, wherein each of the plurality of current-biased rectifier stages is configured to receive at least one of the plurality of current bias signals from the programmable current source; and a control circuit in electrical communication with the capacitor bank and the programmable current source, wherein the control circuit is configured to operatively select the selectable capacitance of the capacitor bank and program the current source.