Siyuan Xu

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Circuit and method for controlling charging of emergency lighting l...
- Patent number 11,271,423
- Issue date Mar 8, 2022
- SHANGHAI SINCERETEK MICROELECTRONICS TECHNOLOGY CO , LTD.
- Hongyue Du
- F21 - LIGHTING
Information Patent Grant
Circuit and method for controlling brightness of emergency lighting...
- Patent number 11,245,283
- Issue date Feb 8, 2022
- SHANGHAI SINCERETEK MICROELECTRONICS TECHNOLOGY CO , LTD.
- Hongyue Du
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High power-factor control circuit and power supply
- Patent number 9,431,895
- Issue date Aug 30, 2016
- Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.
- Na Liu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuits and methods for increasing power factor of switch mode pow...
- Patent number 8,964,415
- Issue date Feb 24, 2015
- BCD Semiconductor Manufacturing Limited
- Yajiang Zhu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuit and system for switch mode power supply
- Patent number 8,923,021
- Issue date Dec 30, 2014
- BCD Semiconductor Manufacturing Co., Ltd.
- Xuegang Ren
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
CIRCUIT AND METHOD FOR CONTROLLING BRIGHTNESS OF EMERGENCY LIGHTING...
- Publication number 20210119478
- Publication date Apr 22, 2021
- Shanghai Sinceretek Microelectronics Technology Co., Ltd.
- Hongyue DU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CIRCUIT AND METHOD FOR CONTROLLING CHARGING OF EMERGENCY LIGHTING L...
- Publication number 20210119479
- Publication date Apr 22, 2021
- Shanghai Sinceretek Microelectronics Technology Co., Ltd.
- Hongyue DU
- F21 - LIGHTING
Information Patent Application
HIGH POWER-FACTOR CONTROL CIRCUIT AND POWER SUPPLY
- Publication number 20160087523
- Publication date Mar 24, 2016
- Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.
- NA LIU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CIRCUITS AND METHODS FOR INCREASING POWER FACTOR OF SWITCH MODE POW...
- Publication number 20130343095
- Publication date Dec 26, 2013
- BCD Semiconductor Manufacturing Co., Ltd.
- YAJIANG ZHU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONTROL CIRCUIT AND SYSTEM FOR SWITCH MODE POWER SUPPLY
- Publication number 20130148387
- Publication date Jun 13, 2013
- BCD Semiconductor Manufacturing Limited
- Xuegang Ren
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER