CT

Chien-Fu Tang

RT Richtek Technology: 58 patents #5 of 459Top 2%
RT Ricktek Technology: 1 patents #1 of 16Top 7%
Overall (All Time): #40,451 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 26–50 of 59 patents

Patent #TitleCo-InventorsDate
9219352 Power off delay circuit and method, and audio system with power off delay Chi-Hua Lin, Isaac Y. Chen, An-Tung Chen 2015-12-22
9203319 Soft-start switching power converting apparatus with pulse-frequency modulation technique Jyun-Che Ho, Jiun-Hung Pan, Isaac Y. Chen 2015-12-01
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
9173264 LED control device for phase-cut dimming system and control method thereof Jiun-Hung Pan, Isaac Y. Chen, Tsung-Hsi Yang 2015-10-27
9136766 Switching power converting apparatus Tzu-Chen Lin, Isaac Y. Chen 2015-09-15
9130464 Soft-start switching power converting apparatus with pulse-frequency modulation technique Jyun-Che Ho, Jiun-Hung Pan, Isaac Y. Chen 2015-09-08
9104216 Mixed mode compensation circuit and method for a power converter Jiun-Hung Pan, Isaac Y. Chen 2015-08-11
9093914 Bootstrap circuit and method for controlling the same Pei-Kai TSENG, Isaac Y. Chen 2015-07-28
9083253 Control circuit for power converting circuit Isaac Y. Chen, 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, Isaac Y. Chen +1 more 2015-05-26
9024607 Control circuit for power converter and method thereof Tsung-Hsi Yang, Isaac Y. Chen, Jiun-Hung Pan 2015-05-05
8907648 Power factor correction circuit, control circuit therefor and method for driving load circuit through power factor correction Jyun-Che Ho, Isaac Y. Chen, Shao-Hung Lu, Tzu-Chen Lin 2014-12-09
8823424 Circuit and method for improving noise immunity of a single-end level shifter in a floating gate driver Pei-Kai TSENG, Issac Chen 2014-09-02
8791725 High voltage offset detection circuit Pei-Kai TSENG, Issac Chen, Jyun-Che Ho 2014-07-29
8779806 Circuit and method for improving noise immunity of a single-end level shifter in a floating gate driver Pei-Kai TSENG, Isaac Y. Chen 2014-07-15
8754617 Reverse shunt regulator Issac Chen, Jiun-Hung Pan 2014-06-17
8724349 Apparatus and method for output voltage calibration of a primary feedback flyback power module Isaac Y. Chen, Liang-Pin Tai 2014-05-13
8723560 High voltage offset detection circuit Pei-Kai TSENG, Issac Chen, Jyun-Che Ho 2014-05-13
8723552 Configuration and method for improving noise immunity of a floating gate driver circuit Pei-Kai TSENG, Kuang-Feng Li, Isaac Y. Chen 2014-05-13
8717091 Control circuit for power converter and method thereof Yung-Chih Lai, Isaac Y. Chen, Jiun-Hung Pan 2014-05-06
8704590 Control circuit for power converter and method thereof Yung-Chih Lai, Isaac Y. Chen, Jiun-Hung Pan 2014-04-22
8674554 Power off delay circuit and method, and audio system with power off delay Chi-Hua Lin, Isaac Y. Chen, An-Tung Chen 2014-03-18
8643292 Digital dimming device and digital dimming method Isaac Y. Chen, An-Tung Chen 2014-02-04
8634212 Controller and controlling method for power converter Isaac Y. Chen, Jiun-Hung Pan 2014-01-21
8570020 Frequency control circuit and method for a non-constant frequency voltage regulator Isaac Y. Chen 2013-10-29