Patent ID: 8446038

Claim:
An energy harvesting resistor comprising: a reverse connected dc to dc converter composed of, a set of single or dual power supplies, a means of duty cycle modulation, a switchable output node, a set of switching devices to alternatively connect said set of single or dual power supplies to said switchable output node, an energy storing inductor connected between said switchable output node and a voltage smoothing node, a voltage smoothing capacitor connected between said voltage smoothing node and a ground node, a current sensing resistor connected between said voltage smoothing node and an external voltage source; and a means of sensing a current flow across said current sensing resistor; and a means of coupling signal from said current flow to said means of duty cycle modulation to control said set of switching devices to define said voltage smoothing node to have a voltage proportional relation to said current flow; such that said voltage smoothing node is acting as a power absorbing node where energy from said external voltage source is coupled though said current sensing resistor, through said energy storing inductor, to said set of single or dual powers supplies while maintaining a voltage to current to power relation of a linear resistor with respect to the said external voltage source.