Systems and methods for overcurrent protection for wireless power receivers
AssigneeVerily Life Sciences LLC
InventorArvind Govindaraj
Life of this patent
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Abstract
One example device for overcurrent protection for wireless power receivers includes a wireless power antenna comprising a wire coil; a conditioning circuit electrically coupled to the wireless power antenna to receive an electric power signal from the wireless power antenna; a temperature-sensitive fuse electrically coupled between the wireless power antenna and the conditioning circuit and configured to electrically decouple the wireless power antenna from the conditioning circuit in response to being blown; and a thermal energy source configured to generate thermal energy based on an electrical signal from an output of the conditioning circuit, the thermal energy source positioned proximate the temperature-sensitive fuse.
Claims32
A device comprising:
- a wireless power antenna comprising a wire coil;
- a conditioning circuit electrically coupled to the wireless power antenna to receive an electric power signal from the wireless power antenna;
- a temperature-sensitive fuse electrically coupled between the wireless power antenna and the conditioning circuit and configured to electrically decouple the wireless power antenna from the conditioning circuit in response to being blown;
- and
- a thermal energy source configured to generate thermal energy based on an electrical signal from an output of the conditioning circuit, the thermal energy source positioned proximate the temperature-sensitive fuse.
A method comprising:
- receiving, by a wireless power antenna comprising a wire coil, energy from an electromagnetic field (“EMF”);
- electrically conditioning, by a conditioning circuit electrically coupled to the wireless power antenna, the received energy to generate a voltage signal;
- generating, by a thermal energy source, thermal energy using the generated voltage signal;
- and
- blowing a temperature-sensitive fuse using the generated thermal energy to electrically decouple the wireless power antenna from the conditioning circuit.
A method of manufacturing a device comprising:
- physically coupling (i) a wireless power antenna comprising a wire coil, (ii) a conditioning circuit, (iii) a temperature-sensitive fuse, and (iv) a thermal energy source to a substrate;
- electrically coupling the wireless power antenna and the conditioning circuit to the temperature-sensitive fuse, wherein the temperature-sensitive fuse electrically couples the wireless power antenna to the conditioning circuit;
- and
- wherein the thermal energy source is electrically coupled to a circuit configured to activate the thermal energy source, the thermal energy source positioned in proximity to the temperature-sensitive fuse.
Dependencies are inferred from the claim text.