Inventor

QIU WEIHONG

US74 patents

⚠️ This page may combine multiple inventors who share the name “QIU WEIHONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

QIU WEIHONG

INTERSIL INC

Power supply control

Modulator circuit with linear and non-linear control

Threshold voltage monitoring and control in synchronous power converters

Adaptive PWM pulse positioning for fast transient response

Adaptive firing order control for dynamic current balance of multiphase voltage regulators

Adaptive PWM pulse positioning for fast transient response

Semi-clockless, cascaded, current-mode power regulator having high noise immunity and arbitrary phase count

PWM controller with dual-edge modulation using dual ramps

Active pulse positioning modulator

Pulse adding scheme for smooth phase dropping at light load conditions for multiphase voltage regulators

Compensation offset adjustment scheme for fast reference voltage transitioning

System and method for improving inductor current sensing accuracy of a DC/DC voltage regulator

Controller having comp node voltage shift cancellation for improved discontinuous conduction mode (DCM) regulator performance and related methods

System and method for smoothing mode transitions in a voltage supply

Power-supply control

Controller and driver communication for switching regulators

DC/DC converter with adaptive drive voltage supply

APPLE INC

Adaptable power rectifier for wireless charger system

Wireless charging system with receiver locating circuitry and foreign object detection

Wireless charging system with multiple communications modes

Device coupling for wireless charging

Wireless power mode switching

Wireless charging system with duty cycle control

Wireless charging system with start-up negotiation

Shared power converter for a wireless transmitter device

Wirelessly charged devices

Common mode noise compensation in wireless power systems

Wireless charging systems with multicoil receivers

Wireless charging system with simultaneous wireless power transfer at different frequencies

Wireless power transmitting devices

Wireless power system with device movement detection

Wireless power system with coupling-coefficient-based coil selection

Adaptive timing for high frequency inverters

Low-profile power converter

QIU WEIHONG

AC and DC temperature compensation scheme for DCR current sense

Method and apparatus for efficient transitioning between different operating modes of a regulator

Hysteretic controlled buck-boost converter

System and method of intermittent diode braking for multiple phase voltage regulator

Threshold voltage monitoring and control in synchronous power converters

Charging system with adaptive power management

Advanced phase number control for multiphase converters

Pulse adding scheme for smooth phase dropping at light load conditions for multiphase voltage regulators

UNIV CENTRAL FLORIDA

Energy transfer concept in AC/DC switch mode power supply with power factor correction

AC/DC switch mode power supply with power factor correction using direct energy transfer concept

ISHAM ROBERT H

Active pulse positioning modulator

XIAO SHANGYANG

Sensing a phase-path current in a multiphase power supply such as a coupled-inductor power supply

AHMAD FAISAL

Dynamic phase timing control for multiple regulators or phases

HOUSTON M JASON

System and method for equalizing the small signal response of variable phase voltage regulators

Intersil Americas LLC

Sensing a phase-path current in a coupled-inductor power supply

MOUSSAOUI ZAKI

Apparatus and methodology for maximum power point tracking for a solar panel