POWER RECEIVER AND CHARGING SYSTEM

• US 20140253027A1
• Filed: 02/28/2014
• Published: 09/11/2014
• Est. Priority Date: 03/07/2013
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: OBAYASHI, Shuichi, Otaka, Shoji, Shijo, Tetsu
• Application Number:
  US14/193,383
• Publication Number:
  US 20140253027A1
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2210/12 Buck converters
• CPC Class Codes: B60L 2210/14 Boost converters
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/22 Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage
• CPC Class Codes: H02M 7/23 arranged for operation in parallel H02M7/2176 takes precedence
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 10/92 Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles

Abstract

According to an embodiment, there is provided a power receiver including: a first rectifying circuit, a second rectifying circuit, a connecting part and a controller. The first rectifying circuit rectifies a first AC power generated by a first AC power generating device. The second rectifying circuit rectifies a second AC power generated by a second AC power generating device. The connecting part electrically connects an output terminal of the first rectifying circuit and an output terminal of the second rectifying circuit, in parallel. The controller performs a control such that the first AC power generating device and the second AC power generating device do not operate simultaneously.

Claims

1. A power receiver comprising:

a first rectifying circuit to rectify a first AC power generated by a first AC power generating device;

a second rectifying circuit to rectify a second AC power generated by a second AC power generating device;

a connecting part to electrically connect an output terminal of the first rectifying circuit and an output terminal of the second rectifying circuit, in parallel; and

a controller to perform a control such that the first AC power generating device and the second AC power generating device do not operate simultaneously.

2. The power receiver according to claim 1, comprising:

a power receiving coupler to wirelessly receive the first AC power from the first AC power generating device; and

the second AC power generating device,

wherein the second AC power generating device generates the second AC power by use of an external power supply.

3. The power receiver according to claim 2, further comprising a modulation signal generating unit to generate a pulse-width modulation signal, wherein

the external power supply supplies an AC power,

the second AC power generating device comprises:

a third rectifying circuit to rectify the AC power supplied from the external power supply; and

an AC power generating unit to modulate an output power of the third rectifying circuit based on the pulse-width modulation signal to thereby generate the second AC power, and

the controller controls the operation of the modulation signal generating unit.

4. The power receiver according to claim 1, further comprising a voltage adjusting circuit arranged following the connecting part, the voltage adjusting circuit to adjust a voltage of an output power of the first or second rectifying circuit that is input via the connecting part.

5. The power receiver according to claim 4, further comprising a storage battery charged with a power of the voltage, adjusted by the voltage adjusting circuit.

6. The power receiver according to claim 1, wherein the first rectifying circuit and the second rectifying circuit each comprises a diode bridge.

7. A charging system comprising:

the power receiver of claim 1; and

the first AC power generating device, wherein

the first AC power generating device comprises;

a modulation signal generating unit to generate a pulse-width modulation signal;

a forth rectifying circuit to rectify an AC power supplied from an external power supply; and

an AC power generating unit to modulate an output power of the forth rectifying circuit based on the pulse-width modulation signal generated by the modulation signal generating unit to thereby generate the first AC power, and

the controller controls the operation of the second modulation signal generating unit.

8. The charging system according to claim 7, wherein

the first AC power generating device comprises a power transmitting coupler to wirelessly transmit the first AC power,

the power receiver comprises a power receiving coupler to wirelessly receive the first AC power from the power transmitting coupler, and

the first rectifying circuit rectifies the first AC power received by the power receiving coupler.

9. A power receiver comprising:

a first rectifying circuit to rectify a first AC power generated by a first AC power generating device;

a first voltage adjusting circuit to adjust a voltage of an output power of the first rectifying circuit;

a second rectifying circuit to rectify a second AC power generated by a second AC power generating device;

a second voltage adjusting circuit to adjust a voltage of an output power of the second rectifying circuit;

a connecting part to electrically connect an output terminal of the first voltage adjusting circuit and an output terminal of the second voltage adjusting circuit, in parallel; and

a controller to perform a control such that the first voltage adjusting circuit and the second voltage adjusting circuit do not operate simultaneously.

10. The power receiver according to claim 9, wherein

the controller supplies a pulse-width modulation signal to only one of the first voltage adjusting circuit and the second voltage adjusting circuit,

the first voltage adjusting circuit adjusts the voltage of an output power of the second rectifying circuit based on the pulse-width modulation signal supplied from the controller, and

the second voltage adjusting circuit adjusts the voltage of an output power of the second rectifying circuit based on the pulse-width modulation signal supplied from the controller.

11. The power receiver according to claim 9, further comprising a storage battery arranged following the connecting part and charged with an output power of the first or second voltage adjusting circuit that is input via the connecting part.

12. The power receiver according to claim 9, wherein the first rectifying circuit and the second rectifying circuit each comprises a diode bridge.