公开(公告)号：US10516288B2

公开(公告)日：2019-12-24

申请号：US15854759

申请日：2017-12-27

Applicant: NEWVASTEK CO., LTD. ,  GUNITECH CORP.

Inventor： Ming-Liang Fang ,  Chih-Hao Chuang ,  Huan-Ruei Shiu

IPC: H02J7/02 ,  H02J7/00 ,  H04B5/00 ,  H04B17/318 ,  H04W4/80

Abstract: Each wireless charging device of the wireless charging system has a Bluetooth module for detecting signal strength between the wireless charging device and an electronic device. The signal strength information is shared among the wireless charging devices by their data transceiver units. An analysis module of each wireless charging device automatically determines one wireless charging device having the best connection, and a decision module of the determined wireless charging device transmits a charging permit to the electronic device. Cross connection of the electronic device to multiple wireless charging devices is therefore avoided.

公开(公告)号：US20200220577A1

公开(公告)日：2020-07-09

申请号：US16737017

申请日：2020-01-08

Applicant: NEWVASTEK CO., LTD.

Inventor： Ming-Liang Fang ,  Sheng-Kuan Chen ,  Chih-Hao Chuang

IPC: H04B5/00 ,  H02J50/80 ,  H02J50/90 ,  H02J50/12

Abstract: A wireless charging signal transmitting method includes continuously transmitting short beacons in a time cycle, each short beacon being used to detect a load change; and transmitting a long beacon only when the short beacons detect the load change to start detecting one or more connection broadcast signals. Moreover, a wireless power transmitting unit is also provided. Accordingly, the method and the device reduce the power consumption of a wireless charging system during the standby period.

公开(公告)号：US10594205B2

公开(公告)日：2020-03-17

申请号：US16052576

申请日：2018-08-01

Applicant: NEWVASTEK CO., LTD.

Inventor： Ming Liu ,  Chengbin Ma ,  Ming-Liang Fang ,  Chih-Hao Chuang

IPC: H02M1/12 ,  H02M1/26 ,  H02M1/44 ,  H02M7/02 ,  H02M7/48

Abstract: A high-frequency half-wave rectifier system of low-harmonicity and high-efficiency, which mainly comprises: a current output device having an output end and a first flow-return end respectively at both ends, a rectifying module, a resonant tuning unit, a first node, a voltage regulator module, at least one load element, a grounding portion, and at least one flow-return path. By means of the above structure, a simple circuit configuration and appropriate capacitance value setting are used to control the duty cycle of the rectifying module to approximately 74 nanoseconds and adjust the output power and improve the AC to DC conversion efficiency for the rectifying module under the low electromagnetic interference condition.

公开(公告)号：US10236939B1

公开(公告)日：2019-03-19

申请号：US16052574

申请日：2018-08-01

Applicant: NEWVASTEK CO., LTD.

Inventor： Ming-Liang Fang ,  Chih-Hao Chuang

IPC: H04B5/00 ,  H02J7/02 ,  H03H7/01 ,  H02J50/12

Abstract: The present invention relates to a sharing system of the near-field communication and the high-frequency wireless charging coils. The main structure comprises a wireless signal transmission unit for receiving signals which will then transmit to a first resonance unit and a second resonance unit at both ends, and then the signals will enter a first notch filter module and a second notch filter module and then charge a load element. The near-field communication module connects with the wireless signal transmission unit to receive a signal. Such that, the near-field communication module can share coils with the high-frequency wireless charging coils to achieve the space-saving effect.

公开(公告)号：US09854617B1

公开(公告)日：2017-12-26

申请号：US15193098

申请日：2016-06-26

Applicant: NEWVASTEK CO., LTD.

Inventor： Ming Liang Fang

IPC: H04W76/02 ,  H04W4/00 ,  H04W48/16 ,  H02J7/02

CPC classification number: H04W76/023 ,  H02J7/025 ,  H02J50/00 ,  H04W4/80 ,  H04W48/16 ,  H04W76/14

Abstract: A to-be-charged electronic client device is placed on a wireless base device. An information member of the wireless base device provides pairing information to a wireless first charging member which transmits electricity signals including the pairing information in a wireless manner to the electronic client device. The electronic client device is charged by the electricity signals. In the meantime, the electronic client device pairs with a wireless first pairing member of the wireless base device. The wireless first pairing member passes a connectivity information provided by the information member to the electronic client device so that it can linked with the Internet automatically and accordingly. The present invention allows the electronic client device to access the Internet automatically while being wireless charged.

公开(公告)号：US10075090B1

公开(公告)日：2018-09-11

申请号：US15662290

申请日：2017-07-28

Applicant: NEWVASTEK CO., LTD.

Inventor： Ming Liu ,  Chengbin Ma ,  Chih-Hao Chuang ,  Ming-Liang Fang

IPC: H02M7/08 ,  H02M1/44

CPC classification number: H02M7/08 ,  H02M1/44 ,  H02M7/06

Abstract: The AC rectifier system includes an AC source having a positive half-cycle terminal and a negative half-cycle terminal, a first rectifier module along with a first resonance unit having a first terminal connected to the positive half-cycle terminal, a second rectifier module along with a second resonance unit having a first terminal connected to negative half-cycle terminal, a regulator module along with a load element having a first terminal respectively connected to a second terminal of the first rectifier module and a second terminal of the second rectifier module, and a current divider module connected to the positive and negative half-cycle terminals the first terminals of the first and second rectifier modules, and the second terminal of the regulator module. Therefore current would be repeatedly transformed through the current divider module, enhancing heat reduction and transformation efficiency. The resonance units may also function as a filter.

公开(公告)号：US09966789B2

公开(公告)日：2018-05-08

申请号：US15287721

申请日：2016-10-06

Applicant: NEWVASTEK CO., LTD.

Inventor： Ming Liang Fang

IPC: H02J7/00 ,  H01F27/28 ,  H02J7/02 ,  H02J50/12

CPC classification number: H02J7/025 ,  H02J7/0027 ,  H02J7/0042 ,  H02J7/007 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J2007/0096

Abstract: The wireless charging system includes a base member for placing a to-be-charged device, a wireless power transmission module for wireless charging the to-be-charged device through a magnetic resonance unit, an impedance detection module, a power throttle module, an information reception module. Through the wireless charging system, firstly, the to-be-charged device is wireless charged on the base member. Secondly, when the to-be-charged device is not a desired object and reveals a higher impedance value, the impedance detection module would detects this and inhibits/throttles the wireless power transmission module. Thirdly, if the to-be-charged object is a desired one but attached with some metallic object such as a metallic back cover, the wireless charging system may continue wireless charging according to the impedance information from the wireless reception module.