#STMicroelectronics Asia Pacific Pte Ltd

ADAPTIVE BOOSTING OF RECTIFIED VOLTAGE IN A WIRELESS CHARGING SYSTEM

A wireless power receiver includes a rectifier with first and second inputs coupled to first and second terminals of a receiver coil, and having a first output coupled to ground and a second output at…

DRIVE·Mar 30·2 min read

H02J50/10 STMicroelectronics Asia Pacific Pte Ltd

LDO FREE WIRELESS POWER RECEIVER HAVING REGTIFIER

A bridge rectifier and associated control circuitry collectively form a “regtifier” which rectifies an input time varying voltage and regulates the rectified output voltage produced without the use of…

DRIVE·May 5·1 min read

H02M7/219 STMicroelectronics Asia Pacific Pte Ltd

LDO FREE WIRELESS POWER RECEIVER HAVING REGTIFIER

A bridge rectifier is controlled by control circuitry to act a “regtifier” which both regulates and rectifies without the use of a traditional voltage regulator. To accomplish this, the gate voltages …

DRIVE·May 5·1 min read

H02J50/12 STMicroelectronics Asia Pacific Pte Ltd

FOREIGN OBJECTION DETECTION SENSING CIRCUIT FOR WIRELESS POWER TRANSMISSION SYSTEMS

A wireless power circuit operable in transceiver mode and in Q-factor measurement mode includes a bridge rectifier having first and second inputs coupled to first and second terminals of a coil, and a…

DRIVE·Mar 31·2 min read

H02J50/60 STMicroelectronics Asia Pacific Pte Ltd

HIGH ACCURACY LOW TEMPERATURE DRIFT HIGH-SIDE CURRENT SENSING HARDWARE AND METHOD

A circuit includes a tank capacitor coupled between first and second nodes, and a sense resistor having a first terminal coupled to the first node and a second terminal coupled to a regulator input. A…

DRIVE·Mar 24·2 min read

G01R19/2506 STMicroelectronics Asia Pacific Pte Ltd

ADVANCED PROTECTION CIRCUIT FOR Q FACTOR SENSING PAD

A wireless-power-system includes a bridge-rectifier having first and second inputs coupled to first and second terminals of a coil, and an output coupled to a rectified voltage node. An excitation cir…

DRIVE·Mar 3·2 min read

H02H9/04 STMicroelectronics Asia Pacific Pte Ltd

LDO FREE WIRELESS POWER RECEIVER HAVING RECTIFIER

Disclosed herein is a bridge rectifier and associated control circuitry collectively forming a “regtifier”, capable of both rectifying an input time varying voltage as well as regulating the rectified…

DRIVE·Jan 20·1 min read

H02J50/12 STMicroelectronics Asia Pacific Pte Ltd

HARDWARE AND METHOD FOR ENHANCED WIRELESS RECEIVER OUTPUT POWER

A method of wirelessly transmitting power includes: causing a power transmission circuit to transmit, to a master power reception circuit, a portion of power it is capable of transmitting; adjusting o…

DRIVE·Dec 16·1 min read

H02J50/10 STMicroelectronics Asia Pacific Pte Ltd

DUAL-MODE HIGH-EFFICIENCY VOLTAGE REGULATOR FOR WIRELESS CHARGING MODULES

A system comprising includes a wireless power receiver generating a rectified voltage. A low dropout regulator (LDO) generates a first regulated output voltage from the rectified voltage, during a fir…

DRIVE·Mar 25·1 min read

H02J50/10 STMicroelectronics Asia Pacific Pte Ltd

ADVANCED OVERVOLTAGE PROTECTION STRATEGY FOR WIRELESS POWER TRANSFER

A wireless power receiving circuit includes a transistor based rectifier receiving an AC input voltage, and control logic receiving an overvoltage signal. The control logic generates control signals f…

DRIVE·Mar 25·1 min read

H02J50/10 STMicroelectronics Asia Pacific Pte Ltd

CIRCUIT AND METHOD FOR MEASURING POWER DISSIPATION IN A RECTIFIER

A receiver circuit includes a rectifier operable in full-, half-synchronous and asynchronous modes. A measurement circuit, with method, provides for real-time power measurement within the rectifier. T…

DRIVE·Mar 25·2 min read

G01R27/08 STMicroelectronics Asia Pacific Pte Ltd