Patent ID: 7668528

Claim:
A low power integrated circuit (IC) comprises: a power supply module includes: a coil coupled to: receive a power source signal from a source external to the low power IC; derive an electromagnetic signal from the power source signal; a power generating circuit coupled to convert the electromagnetic signal into a direct current (DC) supply voltage, wherein the power generating circuit includes a plurality of cells, wherein a first one of the cells converts the electromagnetic signal into a first DC voltage that is further increased by a remainder of the plurality of cells to produce the DC supply voltage, wherein a cell of the plurality of cells includes: a first capacitor having a first connection and a second connection, wherein the first connection is coupled to receive the electromagnetic signal; a first transistor having a control node, a source node, and a return node, wherein the control node and the source node of the first transistor are coupled to the second connection of the first capacitor; a second transistor having a control node, a source node, and a return node, wherein the source node of the second transistor is coupled to the second connection of the first capacitor; and a second capacitor having a first connection and a second connection, wherein the second connection of the second capacitor is coupled to the control node and the return node of the second transistor and the first connection of the second capacitor is coupled to the return node of the first transistor to produce a DC output of the cell; first circuitry coupled to produce a first resultant from a first stimulus, wherein the first circuitry is powered via the DC supply voltage; and second circuitry coupled to produce a second resultant from a second stimulus, wherein the second circuitry is powered by the DC supply voltage.