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在研科研项目: 1. 中国科学院上海技术物理研究所合作项目: 可见光CMOS图像传感器专用高精度模拟信号读出与转换器芯片研究与设计;2. 与美国和国内的集成电路设计公司的合作项目包括:高压大电流直流-电流电压转换器(DC-DC)、交流-直流电压转换器(AC-DC)、低压差线性稳压器(LDO)、Li电池保护管理芯片设计以及大功率白光LED驱动电路芯片设计。 3. 与香港的集成电路设计公司的合作项目:锂电池组管理系统芯片设计。 研究成果: 近五年来获国家发明专利15项;省科技进步奖三等奖1项;国家级教学成果奖二等奖1项;出版教材与专著3本;教材翻译2本;论文20多篇。
Papers

Patents
A soft switching conversion device based on a flyback converter
TANG SHENGPENG,XI JIANXIONG,HE LENIAN
Application Date: 20171027
Dynamic compensation control circuit for synchronous rectification power converter
冷亚辉,顾冬烈,奚剑雄,何乐年,朱勤为,黄飞明
Application Date: 20170619
A dynamic compensation control circuit for synchronous Rectifier power converter
LENG YAHUI,GU DONGLIE,XI JIANXIONG,HE LENIAN,ZHU QINWEI,HUANG FEIMING
Application Date: 20170619
High-voltage capacitance coupling based control chip of isolated type power converter
冷亚辉,奚剑雄,何乐年,朱勤为,黄飞明
Application Date: 20160825
Peak current control unit based on peak current mode control
唐圣鹏,孟宪志,奚剑雄,何乐年,朱勤为,黄飞明
Application Date: 20160803
Control chip for realizing low-standby power consumption of AC-DC switch power supply
LIU KAN,XI JIANXIONG,SUN KEXU,HE LENIAN,ZHU QINWEI,LI YE,HUANG FEIMING
Application Date: 20151231
Non-strobe non-isolated LED constant-current driving circuit
吴旭烽,冷亚辉,何乐年,奚剑雄,朱勤为,黄飞明
Application Date: 20140716
Non-strobe isolated LED constant-current driving circuit
何乐年,奚剑雄,吴旭烽,冷亚辉,朱勤为,黄飞明
Application Date: 20140716
Control chip with detection function of fly-back-type LED constant current driver
何乐年,张奥扬,刘运韬,俞杰草,徐碧莹,冷亚辉,奚剑雄
Application Date: 20140609
Flyback type LED constant-current driver based on structure without auxiliary winding
冷亚辉,奚剑雄,何乐年,朱勤为,黄飞明
Application Date: 20140523
Constant-current drive system of LED string lights
何乐年,王晨阳,奚剑雄,吴旭烽,高红波,殷樱,赵兴农
Application Date: 20131121
刘侃,何乐年,邱建平
Application Date: 20130730
Control circuit of flyback LED (Light Emitting Diode) driver
何乐年,王玉麟,赵一尘,卢晓冬
Application Date: 20130609
AC-DC (alternating-current to direct-current) converter control circuit
何乐年,姜俊敏,赵一尘,卢晓冬
Application Date: 20130609
Current steering digital-analog converter with time domain error correction function
何乐年,施琦锋,薛晓博
Application Date: 20120726
Current limiting circuit for DC/DC (Direct Current/Direct Current) converter
何乐年,胡志成,宁志华,姜俊敏
Application Date: 20120524