发明名称 |
Wireless power transmitter and wireless power transfer method thereof |
摘要 |
A wireless power transmitter including a power supply unit configured to supply an input voltage; a power conversion unit configured to generate wireless power based on a driving signal, generated by the supplied input voltage and a first pulse width modulation (PWM) signal, and transfer the wireless power to a wireless power receiver; and a power transmission control unit configured to receive a voltage value of a battery charged with the wireless power through a wireless network, and generate the first PWM signal based on the voltage value of the battery. |
申请公布号 |
US9461479(B2) |
申请公布日期 |
2016.10.04 |
申请号 |
US201414286672 |
申请日期 |
2014.05.23 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
Chae Beomseok;Jung Byungsang;Seo Jeongkyo;Yoo Kwangmin;Lee Junyoung |
分类号 |
H01M10/44;H01M10/46;H02J5/00;H02J7/02;H02J17/00;H02J7/00 |
主分类号 |
H01M10/44 |
代理机构 |
Birch, Stewart, Kolasch & Birch, LLP |
代理人 |
Birch, Stewart, Kolasch & Birch, LLP |
主权项 |
1. A wireless power transmitter comprising:
a power supply unit configured to supply an input voltage; a power conversion unit configured to generate wireless power based on a driving signal, generated by the supplied input voltage and a first pulse width modulation (PWM) signal, and transfer the wireless power to a wireless power receiver; and a power transmission control unit configured to: receive a voltage value of a battery charged with the wireless power through a wireless network, and generate the first PWM signal based on the voltage value of the battery, wherein the power transmission control unit is further configured to: generate an input current reference value based on the voltage value of the battery, a reference current value for charging the battery, and the input voltage value, generate a battery charging current value for compensating for a difference between the input current reference value and an input current value, and generate the first PWM signal based on the battery charging current value. |
地址 |
Seoul KR |