Back to results
US 2015/0326136 A1Published application
Magnetic field energy harvesting device
AssigneeAnalog Devices Technology
InventorBernhard STRZALKOWSKI
Life of this patent
Estimating the term…
Abstract
A magnetic field energy harvesting device may include an inductor and a controller. The inductor may include two inductor windings connected to each other in series, configured in winding directions and orientations to generate two voltages relative to the middle tap of inductor and out of phase with each other. The controller may switch the two voltages and may generate an approximately constant DC output voltage by alternating switching on and off switches.
Claims20
A device, comprising:
- an inductor with two windings connected in series with each other at a tap;
- and
- a controller,
- wherein the windings are configured in winding directions and orientations, to generate two voltages relative to the tap of the inductor and out of phase with each other, and
- wherein the controller switches the two voltages in alternating fashion to charge an output capacitor to generate an approximately constant DC output voltage.
2 more elements
A system, comprising:
- an output capacitor;
- a circuit board;
- an inductor with two windings connected in series with each other at a tap;
- and
- a controller,
- wherein the windings are configured in winding directions and orientations, to generate two voltages relative to the tap of the inductor and out of phase with each other, and
- wherein the controller switches the two voltages in alternating fashion to charge the output capacitor to generate an approximately constant DC output voltage.
4 more elements
A device, comprising:
- an output capacitor;
- an inductor connected in series with the output capacitor;
- and
- a controller,
- wherein the controller controls a switch to allow current flow from the inductor to charge the output capacitor when the inductor is in a first phase of an alternating magnetic field, and the controller charges an internal power supply of the controller when the inductor is in a second phase of the alternating magnetic field.
2 more elements
Dependencies are inferred from the claim text.