FREQUENCY MODULATION TYPE WIRELSS POWER SUPPLY AND CHARGER SYSTEM
First Claim
1. A frequency modulation type wireless power supply and charger system, comprising a power supply base unit connected to an external power source, and a wireless power supply and charge receiver unit adapted for receiving electrical power from said power supply base unit wirelessly for charging an external electronic device being connected thereto, wherein:
- said power supply base unit comprises a first microprocessor, a power circuit electrically connected to said first microprocessor, a power input interface electrically connected to said power circuit for connection to an external electronic device to be charged, a power switch driver circuit electrically connected to said first microprocessor and said power circuit and adapted for providing a high voltage power supply to said first microprocessor, said power switch driver circuit comprising a full/half-bridge driver circuit, a first MOSFET (metal oxide semiconductor field effect transistor) array and a second MOSFET (metal oxide semiconductor field effect transistor) array connected in parallel to said full/half-bridge driver circuit, a first resonant circuit electrically connected to said second MOSFET array, a first coil electrically connected to said first resonant circuit and adapted to receive signal and to emit energy, a detection module electrically connected to said first microprocessor, said detection module comprising a signal detection circuit and a voltage detection circuit and adapted for detecting the low voltage power supply provided by said power circuit and the output signal provided by said first resonant circuit and outputting the respective detection results to said first microprocessor;
said wireless power supply and charge receiver unit comprises a second coil adapted for emitting signal and receiving power supply by means of electromagnetic induction, a second resonant circuit electrically connected to said second coil, a rectifier filter circuit electrically connected to said second resonant circuit and adapted for receiving a high-voltage AC power supply from said second resonant circuit, and a detection and protection module electrically connected to said rectifier filter circuit, said detection and protection module comprising a voltage regulator circuit electrically connected to said rectifier filter circuit and adapted to convert the high-voltage AC power supply into a predetermined low-voltage power supply, a voltage detection circuit electrically connected to said rectifier filter circuit and said voltage regulator circuit, a circuit-breaker protection circuit electrically connected between said voltage regulator circuit and said rectifier filter circuit and controllable by said second microprocessor to open the circuit upon an overcurrent, a temperature sensor electrically connected to said voltage regulator circuit and a power output interface electrically connected to said voltage regulator circuit for power supply output to the external electronic device to be charged, a second microprocessor electrically connected to said voltage detection circuit and said temperature sensor for receiving detected signals therefrom, and a signal generator electrically connected to said second microprocessor and controllable by said second microprocessor to provide an encoded signal to said second resonant circuit.
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Accused Products
Abstract
A frequency modulation type wireless power supply and charger system includes a power supply base unit consisting of a first microprocessor, a power circuit, a power switch driver circuit, a first resonant circuit, a first coil, a detection module and a power input interface, and a wireless power supply and charge receiver unit consisting of a secondary coil, a second resonant circuit, a rectifier filter circuit, a detection and protection module, a second microprocessor, a temperature sensor, a charging module and a power output interface and adapted for receiving electrical power from the power supply base unit wirelessly for charging an external electronic device. The detection and protection module of the wireless power supply and charge receiver unit detects the supply of the electrical power, and the second microprocessor sends a feedback signal to the power supply base unit through the signal generator circuit and the second resonant circuit subject to the detection of the detection and protection module for enabling the power supply base unit to control the power switch driver circuit to regulate its output power automatically, thereby minimizing power transmission loss and the load of the internal components of the wireless power supply and charge receiver unit.
301 Citations
8 Claims
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1. A frequency modulation type wireless power supply and charger system, comprising a power supply base unit connected to an external power source, and a wireless power supply and charge receiver unit adapted for receiving electrical power from said power supply base unit wirelessly for charging an external electronic device being connected thereto, wherein:
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said power supply base unit comprises a first microprocessor, a power circuit electrically connected to said first microprocessor, a power input interface electrically connected to said power circuit for connection to an external electronic device to be charged, a power switch driver circuit electrically connected to said first microprocessor and said power circuit and adapted for providing a high voltage power supply to said first microprocessor, said power switch driver circuit comprising a full/half-bridge driver circuit, a first MOSFET (metal oxide semiconductor field effect transistor) array and a second MOSFET (metal oxide semiconductor field effect transistor) array connected in parallel to said full/half-bridge driver circuit, a first resonant circuit electrically connected to said second MOSFET array, a first coil electrically connected to said first resonant circuit and adapted to receive signal and to emit energy, a detection module electrically connected to said first microprocessor, said detection module comprising a signal detection circuit and a voltage detection circuit and adapted for detecting the low voltage power supply provided by said power circuit and the output signal provided by said first resonant circuit and outputting the respective detection results to said first microprocessor; said wireless power supply and charge receiver unit comprises a second coil adapted for emitting signal and receiving power supply by means of electromagnetic induction, a second resonant circuit electrically connected to said second coil, a rectifier filter circuit electrically connected to said second resonant circuit and adapted for receiving a high-voltage AC power supply from said second resonant circuit, and a detection and protection module electrically connected to said rectifier filter circuit, said detection and protection module comprising a voltage regulator circuit electrically connected to said rectifier filter circuit and adapted to convert the high-voltage AC power supply into a predetermined low-voltage power supply, a voltage detection circuit electrically connected to said rectifier filter circuit and said voltage regulator circuit, a circuit-breaker protection circuit electrically connected between said voltage regulator circuit and said rectifier filter circuit and controllable by said second microprocessor to open the circuit upon an overcurrent, a temperature sensor electrically connected to said voltage regulator circuit and a power output interface electrically connected to said voltage regulator circuit for power supply output to the external electronic device to be charged, a second microprocessor electrically connected to said voltage detection circuit and said temperature sensor for receiving detected signals therefrom, and a signal generator electrically connected to said second microprocessor and controllable by said second microprocessor to provide an encoded signal to said second resonant circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification