发明名称 |
ELECTRIC POWER TRANSMISSION SYSTEM |
摘要 |
A power transmission system for transmitting electrical energy from a transmission antenna to a reception antenna via an electromagnetic field, including: an inverter for converting DC voltage into AC voltage having a prescribed frequency and outputting the AC voltage; a transmission-side control unit for performing a control for keeping the drive frequency of the inverter at a prescribed frequency, controlling the voltage of the DC voltage inputted into the inverter, and controlling to keep the power value outputted from the inverter constant; a transmission antenna into which the inverter inputs the AC voltage; a rectifier for rectifying the output from the reception antenna into DC voltage; a step-up/step-down unit for stepping up or down and then outputting the DC voltage from the rectifier; a battery charged by the output from the step-up/step-down unit; and a reception-side control unit for controlling the step-up/step-down unit and charging the battery most efficiently. |
申请公布号 |
US2015061580(A1) |
申请公布日期 |
2015.03.05 |
申请号 |
US201314381913 |
申请日期 |
2013.02.27 |
申请人 |
EQUOS RESEARCH CO., LTD. |
发明人 |
Yamakawa Hiroyuki;Ito Yasuo;Hayashi Koki |
分类号 |
H02J7/02;H02J7/04 |
主分类号 |
H02J7/02 |
代理机构 |
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代理人 |
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主权项 |
1. An electric power transmission system that transmits electric energy via an electromagnetic field from a power transmission antenna to a power receiving antenna, comprising:
an inverter unit that converts DC voltage to AC voltage of a predetermined frequency to output; a power transmission-side control unit that controls a drive frequency of the inverter unit and a voltage value of DC voltage input to the inverter unit, and controls power output from the inverter unit; the power transmission antenna to which AC voltage is input from the inverter unit; a rectifying unit that rectifies an output of the power receiving antenna to obtain DC voltage, and outputs the DC voltage; a step-up and step-down unit that steps up or down DC voltage output from the rectifying unit to output; a battery that is charged with an output of the step-up and step-down unit; and a power receiving-side control unit that controls the step-up and step-down unit in such a way as to charge the battery with maximum efficiency, and thereby controls in such a way that the drive frequency of the inverter unit remains unchanged regardless of a coupling coefficient between the power transmission antenna and the power receiving antenna. |
地址 |
Tokyo JP |