Newvastek Co., Ltd.

Gunitech Corp.

Chih-Hao Chuang

Ming-Liang Fang

Ming Liu

Chengbin Ma

Huan-Ruei Shiu

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.

High-frequency half-wave rectifier system of low-harmonicity and high-efficiency

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.

Wireless charging system and method

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.

Sharing system of near-field communication and high-frequency wireless charging coils

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.

Growing community of inventors

Taipei, Taiwan

Chih-Hao Chuang