Back to results
US 12,689,224 B2Granted
Wireless power architecture with series-coupled power converters
AssigneeCirrus Logic, Inc.
InventorsRoss C. Morgan, Ivan Perry, Hasnain Akram
Life of this patent
Estimating the term…
Abstract
A system may include a wireless receiver module configured to receive electrical energy from a wireless transmission module, a first power converter electrically coupled to the wireless transmission module and configured to convert a charging voltage generated by the wireless transmission module into an intermediate voltage, and a second power converter configured to be electrically coupled between a battery and the first power converter and configured to convert the intermediate voltage into a battery voltage for charging the battery.
Claims23
A system comprising:
- a wireless receiver module configured to receive electrical energy from a wireless transmission module;
- a first power converter electrically coupled to the wireless receiver module and configured to convert a charging voltage generated by the wireless transmission module into an intermediate voltage;
- a second power converter configured to be electrically coupled between a battery and the first power converter and configured to convert the intermediate voltage into a battery voltage for charging the battery, wherein the intermediate voltage is configured to power one or more components other than the battery, the first power converter, the second power converter, and the wireless receiver module, and wherein the one or more components are electrically coupled between the first power converter and the second power converter;
- and
- control circuitry configured to operate the first power converter and the second power converter to maintain a combined reflected impedance presented by the battery, the wireless receiver module, the first power converter, and the second power converter to the wireless transmission module at a desired level.
2 more elements
A method comprising:
- receiving, at a wireless receiver module electrically coupled to a first power converter, electrical energy from a wireless transmission module;
- converting a charging voltage generated by the wireless transmission module into an intermediate voltage with the first power converter;
- converting the intermediate voltage into a battery voltage for charging a battery with a second power converter electrically coupled between the battery and the first power converter, wherein the intermediate voltage is configured to power one or more components other than the battery, the first power converter, the second power converter, and the wireless receiver module, and wherein the one or more components are electrically coupled between the first power converter and the second power converter;
- and
- operating the first power converter and the second power converter to maintain a combined reflected impedance presented by the battery, the wireless receiver module, the first power converter, and the second power converter to the wireless transmission module at a desired level.
2 more elements
An apparatus configured to:
- receive, at a wireless receiver module electrically coupled to a first power converter, electrical energy from a wireless transmission module;
- convert a charging voltage generated by the wireless transmission module into an intermediate voltage;
- convert the intermediate voltage into a battery voltage for charging a battery, wherein two or more components other than the battery, the first power converter, the second power converter, and the wireless receiver module are electrically coupled between the first power converter and the second power converter, wherein each of the two or more components are in parallel with each other and each of the two or more components are in parallel with the second power converter, and wherein the intermediate voltage is configured to power the two or more components;
- and
- operate the first power converter and the second power converter to maintain a combined reflected impedance presented by the battery, the wireless receiver module, the first power converter, and the second power converter to the wireless transmission module at a desired level.
2 more elements
Dependencies are inferred from the claim text.