129 patents
Page 2 of 7
Utility
Switching Power Supply Circuit with Synchronous Rectification and Associated Control Circuit and Control Method
6 Jul 23
A method to control a synchronous rectifier (SR) switch in a switching power supply circuit having an energy storage component coupled to the SR switch, the method is: generating a turning-ON control signal by comparing a drain-source sensing voltage of the SR switch with a turn ON threshold voltage; limiting an ON-time of the SR switch at least not less than a minimum on-time when the turning-ON control signal is asserted and an indicium signal having a first level indicating a fast mode; and removing the minimum on-time limitation to the SR switch and turning OFF the SR switch responsive to the drain-source sensing voltage of the SR switch exceeding a turn OFF threshold voltage when the turning-ON control signal is asserted and the indicium signal having a second level indicating a slow mode.
Lei Miao, Siran Wang
Filed: 13 Oct 22
Utility
Control Circuit with Energy Regulation for Voltage Regulators and Control Method Thereof
29 Jun 23
A control circuit for a voltage regulator has an energy regulation circuit and a switching control circuit.
Wangmiao Hu, Fangyu Zhang, Lijie Jiang, Chao Liu, Chiahsin Chang, Jinghai Zhou
Filed: 17 Feb 23
Utility
Bi-directional Voltage Converter for High Power Applications
29 Jun 23
A bi-directional voltage converter having a first switch, a second switch, an inductor, a third switch, a fourth switch and a fifth switch connected in parallel with the third switch.
Rui Wang
Filed: 7 Dec 22
Utility
Control Circuit for a Totem Pole Power Factor Correction Circuit and the Method Thereof
25 May 23
A totem pole PFC (Power Factor Correction) circuit, having: a first switch, a second switch and a control circuit.
Guangzhuo Li, Pengfei Liu, Siran Wang
Filed: 14 Nov 22
Utility
Control Circuit for DC-DC Converters with Current Limit and Control Method Thereof
4 May 23
A control circuit for a DC-DC converter has an over-current comparison circuit, an adaptive voltage position (AVP) control circuit and a switching control circuit.
Wangmiao Hu, Lijie Jiang, Fangyu Zhang
Filed: 19 Oct 22
Utility
Control Circuit for DC-DC Converters with Nonlinear Adaptive Voltage Position and Control Method Thereof
4 May 23
A control circuit for a DC-DC converter has an adaptive voltage position (AVP) control circuit and a switching control circuit.
Lijie Jiang, Fangyu Zhang, Ming Chen
Filed: 14 Oct 22
Utility
Power Chip with a Multi-function Pin
27 Apr 23
A power chip with a switching converter, having: a power pin configured to receive an input voltage, an indicating signal generating circuit configured to generate an indicating signal; a communicating circuit configured to receive/transmit communication data; and a multi-function pin configured to receive/transmit communication data and/or to provide the indicating signal under certain conditions.
Pengfei Liu
Filed: 19 Oct 22
Utility
Switching Mode Power Supply with Stable Zero Crossing Detection, the Control Circuit and the Method Thereof
6 Apr 23
A switching mode power supply disables a ZCD function when the AC input voltage has a voltage value close to a voltage value of the output voltage, so that instable zero crossing detection issues are eliminated.
Hao Wang
Filed: 16 Sep 22
Utility
Isolated Drive Circuit and Isolated Driving Method with Improved Magnetic Field Immunity
30 Mar 23
A drive circuit configured to drive a power stage including a high voltage power switch device.
Naixing Kuang
Filed: 22 Sep 22
Utility
Efuse Circuit and Control Method Thereof
2 Mar 23
A method for controlling an efuse circuit is provided.
Lei Li
Filed: 11 Aug 22
Utility
Circuits and Method for Reducing Light Load Power Dissipation of a Voltage Converter
23 Feb 23
A method for controlling a voltage converter includes the following steps.
Pengfei Liu
Filed: 11 Aug 22
Utility
Control Circuit of Switching Mode Power Supply and Control Method Thereof
2 Feb 23
A method for controlling a switching mode power supply is disclosed.
Hui Li, Siran Wang
Filed: 28 Jul 22
Utility
Power Management Circuit with Constant Time Control and Associated Operating Methods
5 Jan 23
An integrated circuit for a power management circuit is provided.
Min Xu
Filed: 21 Mar 22
Utility
Power Supply Circuit for Switching Mode Power Supply and Control Method Thereof
8 Dec 22
A power supply circuit for a switching mode power supply, having: a charging capacitor coupled to an auxiliary winding; a power supply diode coupled to a power supply capacitor, wherein the charging capacitor has a connecting terminal coupled to the power supply diode, and the charging capacitor and the power supply diode are serially coupled between the auxiliary winding of the switching mode power supply and the power supply capacitor; and a power supply switch coupled between the connecting terminal and a primary ground of the switching mode power supply.
Xuefeng Chen
Filed: 6 Jun 22
Utility
Switching Converter Compatible with Super Capacitor and Control Circuit Thereof
17 Nov 22
A control circuit used in a switching converter having a switch and an inductor.
Yong Zhou
Filed: 28 Apr 22
Utility
Circuit for Controlling a Switching Mode Power Supply and the Method Thereof
17 Nov 22
A circuit for controlling a switching mode power supply having a power switch, having: a feedback pulse circuit, configured to receive a feedback signal, and to provide a feedback pulse signal; a load determining circuit, configured to receive the feedback signal, and to provide a load determining signal; a light load pulse circuit, configured to receive the load determining signal and a frequency regulating signal, and to provide a light load pulse signal; a frequency regulating circuit, configured to receive the load determining signal, the light load pulse signal and a normal load pulse signal, and to provide the frequency regulating signal; and a selecting circuit, configured to receive the load determining signal, the feedback pulse signal and the light load pulse signal, and to provide an on control signal and the normal load pulse signal; wherein the on control signal controls an on operation of the power switch.
Hui Li, Guangzhuo Li
Filed: 2 May 22
Utility
Flip Chip Package Unit and Associated Packaging Method
27 Oct 22
A flip chip package unit and associated packaging method.
Yingjiang Pu, Hunt Hang Jiang, Xiuhong Guo
Filed: 11 Apr 22
Utility
Flip Chip Package Unit and Associated Packaging Method
27 Oct 22
A flip chip package unit and associated packaging method.
Yingjiang Pu, Hunt Hang Jiang, Xiuhong Guo
Filed: 4 Apr 22
Utility
Switching Regulator with THD and PF Compensation, the Control Circuit and the Method Thereof
20 Oct 22
A switching regulator converts an AC input voltage into an output voltage, to power a load.
Hao Wang, Zhiheng Hu
Filed: 11 Apr 22
Utility
Switch Mode Power Supply with Improved Transient Performance and Control Circuit Thereof
13 Oct 22
A control circuit used in a switch mode power supply is provided.
Shanglin Xu
Filed: 25 Mar 22