IC

Isaac Y. Chen

RT Richtek Technology: 99 patents #1 of 459Top 1%
RT Ricktek Technology: 1 patents #1 of 16Top 7%
Overall (All Time): #13,102 of 4,157,543Top 1%
105
Patents All Time

Issued Patents All Time

Showing 51–75 of 105 patents

Patent #TitleCo-InventorsDate
9277616 Light emitting device driver circuit Tong-Cheng Jao, Yi-Wei Lee 2016-03-01
9263940 Power converter and power factor corrector thereof Chien-Hung Chen, Yi-Wei Lee, Jyun-Che Ho 2016-02-16
9257900 Signal peak detector and detection method, and control IC and method for a PFC converter Yung-Chih Lai, Jyun-Che Ho 2016-02-09
9258857 Light emitting system and voltage conversion device thereof Tong-Cheng Jao, Yi-Wei Lee 2016-02-09
9219352 Power off delay circuit and method, and audio system with power off delay Chi-Hua Lin, Chien-Fu Tang, An-Tung Chen 2015-12-22
9203295 Bleeding circuit and method for reducing power consumption of an EMI filter Yen-Te Lee, Kuo-Chi Liu, Fu-Sheng Tsai, Kuang-Feng Li, Chung-Cheng Chang +2 more 2015-12-01
9203319 Soft-start switching power converting apparatus with pulse-frequency modulation technique Jyun-Che Ho, Jiun-Hung Pan, Chien-Fu Tang 2015-12-01
9173264 LED control device for phase-cut dimming system and control method thereof Jiun-Hung Pan, Chien-Fu Tang, Tsung-Hsi Yang 2015-10-27
9136766 Switching power converting apparatus Chien-Fu Tang, Tzu-Chen Lin 2015-09-15
9130464 Soft-start switching power converting apparatus with pulse-frequency modulation technique Jyun-Che Ho, Jiun-Hung Pan, Chien-Fu Tang 2015-09-08
9119254 Light emitting device power supply circuit with dimming function and control circuit thereof Yi-Wei Lee, Tong-Cheng Jao, Chien-Yang Chen 2015-08-25
9112404 Multiplier-divider circuit and AC-to-DC power converting apparatus incorporating the same Chien-Hung Chen, Yi-Wei Lee, Jyun-Che Ho 2015-08-18
9104216 Mixed mode compensation circuit and method for a power converter Chien-Fu Tang, Jiun-Hung Pan 2015-08-11
9093914 Bootstrap circuit and method for controlling the same Pei-Kai TSENG, Chien-Fu Tang 2015-07-28
9083253 Control circuit for power converting circuit Chien-Fu Tang, Hsin-Yi Wu 2015-07-14
9042126 Switching power converting apparatus, switching controller for the same, and method of controlling a bipolar junction transistor of the same Jung-Pei Cheng, Yu-Chang Chen, Jiun-Hung Pan, Yung-Chih Lai, Chien-Fu Tang +1 more 2015-05-26
9024607 Control circuit for power converter and method thereof Tsung-Hsi Yang, Chien-Fu Tang, Jiun-Hung Pan 2015-05-05
9008251 Adaptive phase-shifted synchronization clock generation circuit and method for generating phase-shifted synchronization clock An-Tung Chen 2015-04-14
8907648 Power factor correction circuit, control circuit therefor and method for driving load circuit through power factor correction Jyun-Che Ho, Chien-Fu Tang, Shao-Hung Lu, Tzu-Chen Lin 2014-12-09
8904317 Parameter setting circuit and method for integrated circuits Jo-Yu Wang 2014-12-02
8786267 Real time adjustable zero current detection for a switching regulator Shao-Hung Lu, An-Tung Chen 2014-07-22
8779806 Circuit and method for improving noise immunity of a single-end level shifter in a floating gate driver Pei-Kai TSENG, Chien-Fu Tang 2014-07-15
8723552 Configuration and method for improving noise immunity of a floating gate driver circuit Pei-Kai TSENG, Chien-Fu Tang, Kuang-Feng Li 2014-05-13
8724349 Apparatus and method for output voltage calibration of a primary feedback flyback power module Chien-Fu Tang, Liang-Pin Tai 2014-05-13
8717091 Control circuit for power converter and method thereof Yung-Chih Lai, Chien-Fu Tang, Jiun-Hung Pan 2014-05-06