公开(公告)号：US20170288444A1

公开(公告)日：2017-10-05

申请号：US15086837

申请日：2016-03-31

Applicant: INTEL CORPORATION

Inventor： Mikko S. KOMULAINEN ,  Saku LAHTI ,  Songnan YANG

IPC: H02J7/02 ,  H02J50/10 ,  H02J50/80 ,  H03H7/38

CPC classification number: H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H03H7/38

Abstract: Technology for impedance matching with a re-configurable coil arrangement of multiple transmitter coils of an electronic device is described. One electronic device includes a wireless transmitter coupled to a power supply and an impedance matching circuit coupled to output terminals of the wireless transmitter. First switching circuitry of the impedance matching circuit, in response to a first control signal, is to switch either a first transmitter coil or a first conductive path in series between the output terminals. Second switching circuitry of the impedance matching circuit, in response to a second control signal, is to switch either a second transmitter coil or a second conductive path in series between the output terminals. The first transmitter and first conductive path have the same impedance and the second transmitter and the second conductive path have the same impedance.

公开(公告)号：US20190207633A1

公开(公告)日：2019-07-04

申请号：US16326713

申请日：2016-09-29

Applicant: INTEL CORPORATION

Inventor： Timo HUUSARI ,  Saku LAHTI

IPC: H04B1/04 ,  H04B1/52 ,  H04B1/10 ,  H01P5/18 ,  H03H7/48

CPC classification number: H04B1/0475 ,  H01P5/18 ,  H03H7/48 ,  H04B1/10 ,  H04B1/52 ,  H04B1/525

Abstract: An electric circuit includes a compensation circuit. The compensation circuit includes at least one directional coupler with an adjustable coupling factor. The compensation circuit is coupled between a first signal path and a second signal path of the electric circuit via the at least one directional coupler. Furthermore, the electric circuit includes a detector circuit coupled at least to the second signal path. The detector circuit is configured to detect an interfering signal portion of a signal of the first signal path in the second signal path. Furthermore, the electric circuit includes a control circuit. The control circuit is configured to adjust a transfer characteristic of the compensation circuit based on the detected interfering signal portion. Adjusting the transfer characteristic includes adjusting the coupling factor of the at least one directional coupler.