Inventor

ZHENG JUNJIE

US58 patents

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

ZHENG JUNJIE

IWATT INC

System and method for input current shaping in a power converter

System and method for input current shaping in a power converter

LED driver with multiple feedback loops

System and method for controlling current limit with primary side sensing

Adaptive control for transition between multiple modulation modes in a switching power converter

System and method for input current shaping in a power converter

Power converter with emulated peak current mode control

Power converter controller IC having input voltage pin with multiple functions

On-time control for constant current mode in a flyback power supply

Adaptive multi-mode digital control improving light-load efficiency in switching power converters

Digital communication link between secondary side and primary side of switching power converter

Compensating on-time delay of switching transistor in switching power converters

Compensating on-time delay of switching transistor in switching power converters

System and method for input current shaping in a power converter

System and method for input current shaping in a power converter

Constant current mode ripple attenuation method in flyback power supply

Constant current control buck converter without current sense

Switching power converter with secondary to primary messaging

Switching power converter with secondary-side dynamic load detection and primary-side feedback and control

EMI frequency spreading method for switching power converter

System and method for controlling a current limit with primary side sensing using a hybrid PWM and PFM control

HUAYUAN SEMICONDUCTOR SHENZHEN LTD COMPANY

Display device with distributed driver circuits and shared multi-wire communication interface for dimming data

Display device with distributed driver circuits switchable between serial and parallel communication modes

Controlling an active clamp switching power converter circuit based on a sensed voltage drop on an auxiliary winding

Voltage sensing of an active clamp switching power converter circuit using an auxiliary winding having a same polarity as a primary winding

Addressing and redundancy schemes for distributed driver circuits in a display device

Display device with selectable LED current levels based on brightness data

Power line communication in a display device with distributed driver circuits

Display device with single package light emitting diode and driver circuit

Display device with distributed arrays of driver circuits and sensors

Display device with feedback via serial connections between distributed driver circuits

Display device with feedback via parallel connections from distributed driver circuits to a single wire interface

Voltage sensing of an active clamp switching power converter circuit using an auxiliary winding having a same polarity as a primary winding

Display device with selectable LED current levels based on brightness data

Display device with distributed driver circuits and shared multi-wire communication interface for dimming data

DIALOG SEMICONDUCTOR INC

USB power converter with bleeder circuit for fast correction of output voltage by discharging output capacitor

Adjusting color temperature in a dimmable LED lighting system

Adaptive dimmer detection and control for LED lamp

Adaptive dimmer detection and control for LED lamp

Adaptive peak power control

ZHENG JUNJIE

Adaptive dimmer detection and control for LED lamp

Switching power converter with load impedance detection

Adaptive dimmer detection and control for LED lamp

Dynamic drive of switching transistor of switching power converter

LI YONG

Valley-mode switching schemes for switching power converters

Controller for switching power converter driving BJT based on primary side adaptive digital control

YAN LIANG

Detecting light load conditions and improving light load efficiency in a switching power converter

WANG XIAOYAN

Adaptive control for transition between multiple modulation modes in a switching power converter

TPK TOUCH SYSTEMS XIAMEN INC

Electronic device

UNIV CHINA PETROLEUM EAST CHINA

Polycarboxylate thinner for carbonate/bicarbonate contamination resistant water-based drilling fluid and preparation method and application thereof