Inventor

ZHANG WEIQIANG

CN68 patents

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

ZHANG WEIQIANG

DELTA ELECTRONICS SHANGHAI CO

TNPC inverter device and method for detecting short-circuit thereof

Power conversion system

Multiunit power conversion system

Insulation monitoring device applied to power system and power system

Circuit module and solid-state transformer system

Power module

Power module

Lighting device and voltage reduction method thereof

Power supply apparatus, three-phase power supply system and control method

Power conversion system with N power converters

Insulation device and electrical device having the same

Carrier board and power module using same

Power module

Via structure and circuit board having the via structure

Power module and power conversion device

Power supply system and power supply method

Compressing structure, power module and a method for compressing a component inside a chamber

SUN MICROSYSTEMS INC

System and method for controlling and managing computer farms

Task grouping in a distributed processing framework system and methods for implementing the same

Test result analyzer in a distributed processing framework system and methods for implementing the same

Task submission systems and methods for a distributed test framework

Multi-CPUs support with thread priority control

Dynamic attributes for distributed test framework

Methods to develop remote applications with built in feedback ability for use in a distributed test framework

Self-contained tasks

Remote system controller and data center and methods for implementing the same

Parsing test results having diverse formats

DELTA ELECTRONICS INC

Converter system, driving circuit and method for semiconductor switch

Power conversion system with dc-bus pre-charge

Power conversion system and method for pre charging DC-Bus capacitors therein

Insulated housing having a cylindrical structure

Transformer

Power supply system

Power supply system

IGO FURNITURE FOSHAN LTD

Chair

Seatback

Chair leg assembly with claw design

Chair leg assembly with claw design

Chair leg assembly with claw design

ZHANG WEIQIANG

Lamp ballast having filament heating apparatus for gas discharge lamp

Multi-channel LED driver circuit

Light emitting diode lighting device and light emitting diode lamp

XU LIZHI

Open circuit protecting circuit, open circuit protecting method and illuminating apparatus

Illumination device, illumination system, and lamp

ZHANG QI

Method of controlling ignition circuit and ignition circuit using the same

Ballast control circuit and ballast control method for gas discharge lamp

BOE TECHNOLOGY GROUP CO LTD

Driving circuit and organic light emitting display apparatus

JUNSKY APPLIANCES LTD

Water heater

ZHONG YAN

Electronic ballast

IGO FURNITURE LTD

Chair armrest