Inventor

ZHANG JINFA

CN108 patents

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

ZHANG JINFA

DELTA ELECTRONICS SHANGHAI CO

Power adapter

Power adapter

Control method and control apparatus for flyback circuit

Device and method for controlling flyback converter

Control device and control method

Three-level rectification DC/DC converter

Magnetic core

Magnetic core

Isolated resonant converter

Control method for DC/DC converter and DC/DC converter

Single-phase and three-phase compatible circuit and charge-discharge apparatus

Magnetic core

Method and apparatus for controlling a flyback converter

Charging device and control method therefor

Control device and control method

Power conversion apparatus

Voltage balance control device and voltage balance control method for flying-capacitor multilevel converter

Core structure and magnetic device

Detection circuit and detection method for detecting insulation resistance of photovoltaic inverter, and photovoltaic inverter

Power supply system for supplying power to network device

Magnetic core

Power supply system for supplying power to network device

Magnetic assembly and power supply apparatus

Winding assembly and magnetic element

Detecting method for an operating state of a power supply and a detecting apparatus

Adapter and control method thereof

Totem-pole power factor correction circuit

Magnetic core

On-board charging/discharging system and control method thereof

Power conversion apparatus including a heat-dissipation module

Magnetic assembly and power module

DELTA ELECTRONICS INC

Ballast converter with power factor and current crest factor correction

Control circuit for outputting pulse width modulation control signal with zero-crossing detection

Magnetic component and switch power supply device

Method and apparatus for charging and discharging

Module of suppressing inrush current, method of controlling the same and on-board bidirectional charger using the same

Magnetic component and switch power supply device

Converter and control method thereof

Magnetic device

Charging and discharging device and charging and discharging system of electric vehicle

Optimizer, control method and parallel arrangement for photovoltaic system

Flyback converter and control method thereof

Sigma, delta and sigma-delta DC/DC converters for wide input and output voltage ranges

ZHANG JINFA

Resonant conversion system with over-current protection processes

Power module and circuit board assembly thereof

LI HAN

Power module and circuit board assembly thereof

Power converter having synchronous rectifier and control method of synchronous rectifier

DELTA ELECTRONICS THAILAND PUBLIC CO LTD

Fault protection method and wireless power transmission device using same

Power generating method and wireless power transmission device therefor

YOU PEIAI

Battery charging apparatus for electric vehicle with fixing member and cooling mechanism