MAGNETIC FIELD ENERGY HARVESTING DEVICE
First Claim
Patent Images
1. 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, andwherein the controller switches the two voltages in alternating fashion to charge an output capacitor to generate an approximately constant DC output voltage.
4 Assignments
0 Petitions
Accused Products
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.
-
Citations
20 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. 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. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. 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.
-
Specification