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公开(公告)号:US11217299B2
公开(公告)日:2022-01-04
申请号:US16997445
申请日:2020-08-19
Inventor: Young-deuk Jeon , Seong Min Kim , Jin Kyu Kim , Joo Hyun Lee , Min-Hyung Cho , Jin Ho Han
IPC: G11C11/40 , G11C11/4076 , G11C11/4096 , G11C11/4099
Abstract: Disclosed are a device and a method for calibrating a reference voltage. The reference voltage calibrating device includes a data signal communication unit that transmits/receives a data signal, a data strobe signal receiving unit that receives a first data strobe signal and a second data strobe signal, a voltage level of the second data strobe signal being opposite to a voltage level of the first data strobe signal, and a reference voltage generating unit that sets a reference voltage for determining a data value of the data signal, based on the first data strobe signal and the second data strobe signal, and the reference voltage generating unit adjusts the reference voltage based on the first data strobe signal and the second data strobe signal.
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22.
公开(公告)号:US10727701B2
公开(公告)日:2020-07-28
申请号:US16415117
申请日:2019-05-17
Inventor: Duk Ju Ahn , In Kui Cho , Seong Min Kim , Jung Ick Moon , Sang Bong Jeon , Byung Chan Kim , Je Hoon Yun , Dong Won Jang , Hyung Do Choi
Abstract: Provided is a wireless power reception apparatus which receives a power from a wireless power transmission apparatus. A wireless power reception apparatus which receives a power from a wireless power transmission apparatus, the wireless power reception apparatus comprising a duty controller configured to control a duty cycle; a power converter configured to convert an effective load resistance according to the duty cycle; a reception resonator configured to receive a power from a transmission coil of the wireless power transmission apparatus, wherein the duty cycle and a current of the transmission coil is adjusted based on a load resistance of the wireless power reception apparatus.
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公开(公告)号:US10483787B2
公开(公告)日:2019-11-19
申请号:US16265422
申请日:2019-02-01
Inventor: In Kui Cho , Seong Min Kim , Jung Ick Moon , Duk Ju Ahn , Je Hoon Yun , Hyung Do Choi , Dong Won Jang
Abstract: Provided is a wireless charging apparatus for performing wireless charging of an electronic device including a receiving coil located in a three-dimensional (3D) wireless charging zone using a plurality of transmitting coils arranged in the 3D wireless charging zone and at least one power source configured to supply a current to the plurality of transmitting coils.
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24.
公开(公告)号:US10298066B2
公开(公告)日:2019-05-21
申请号:US15240043
申请日:2016-08-18
Inventor: Duk Ju Ahn , In Kui Cho , Seong Min Kim , Jung Ick Moon , Sang Bong Jeon , Byung Chan Kim , Je Hoon Yun , Dong Won Jang , Hyung Do Choi
Abstract: The wireless power reception apparatus includes: a duty controller configured to calculate an amount of current of a transmission coil required for the wireless power transmission apparatus and control a duty cycle by using at least one of distance information between the wireless power transmission apparatus and the wireless power reception apparatus or load current information; a power converter configured to convert an effective load resistance according to the duty cycle; a wireless data transmitter configured to transmit a signal that requires a control of the calculated amount of current of the transmission coil to the wireless power transmission apparatus; and a reception resonator configured to receive a power according to the amount of current of the transmission coil controlled by the signal that requires a control of the amount of current of the transmission coil from the wireless power transmission apparatus.
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