129 patents
Page 6 of 7
Utility
Sequence Assignment Method Used In Multiphase Switching Converters with Daisy Chain Configuration
28 Jan 21
A sequence assignment method used in multiphase switching converters with daisy chain configuration, wherein the multiphase switching converter includes a plurality of switching circuits coupled in parallel, and a plurality of control circuits configured in a daisy chain and sharing a phase control signal.
Lijie Jiang, Yongheng Sun
Filed: 21 Jul 20
Utility
Lateral Dmos Having Reduced Lateral Size
21 Jan 21
A lateral DMOS having a well region, a source region, a drain region, a first gate region and a second gate region.
Yanjie Lian, Ji-Hyoung Yoo
Filed: 7 Jul 20
Utility
Controller for a Multi-phase Converter and Fault Detection Method Thereof
23 Dec 20
A fault detection method for a multi-phase converter is: sampling currents flowing through a plurality of switching circuits to generate a plurality of current sampling signals; generating a plurality of digital current signals based on a plurality of current sampling signals; generating a plurality of on-time adjustment signals based on differences between each of the plurality of digital current signals and a reference current signal; averaging the plurality of on-time adjustment signals to generate an average adjustment signal; subtracting each of the plurality of on-time adjustment signals from the average adjustment signal to generate corresponding plurality of adjustment error signals; comparing each of the plurality of adjustment error signals with a threshold signal to generate a plurality of fault signals; and adjusting control signals of the plurality of switching circuits based on the plurality of fault signals.
Wenbin Lu, Wangmiao Hu, Lijie Jiang
Filed: 17 Jun 20
Utility
Controller for a Multi-phase Converter and Fault Detection Method Thereof
23 Dec 20
A fault detection method is sampling currents flowing through a plurality of switching circuits to generate a plurality of current sampling signals, generating a first reference signal and a second reference signal based on a predetermined reference signal and a ripple threshold signal, and generating a plurality of fault signals based on comparison results of each of the plurality of current sampling signals with the first reference signal and the second reference signal.
Wenbin Lu, Wangmiao Hu, Lijie Jiang
Filed: 17 Jun 20
Utility
Circuit for Driving Synchronous Rectifier Device
9 Dec 20
A driving circuit for driving a synchronous rectifier device.
Lin Feng, Yuedong Chen
Filed: 15 Apr 20
Utility
Flexible Dimming Circuit and a Method Thereof
9 Dec 20
A dimming circuit for dimming a current flowing through a light emitting device, having: a multi-function pin, configured to receive a dimming signal; wherein when the dimming signal is an analog voltage signal, an amplitude of the current flowing through the light emitting device is regulated based on the dimming signal; when the dimming signal is a pulse signal and a frequency of the dimming signal is in a first frequency range, a duty cycle of the current flowing through the light emitting device is regulated based on the dimming signal; and when the dimming signal is the pulse signal and the frequency of the dimming signal is in a second frequency range, the amplitude of the current flowing through the light emitting device is regulated based on the dimming signal.
Bo Yu, Bairen Liu, Junxin Tan
Filed: 2 Jun 20
Utility
Switching Converter and a Method Thereof
2 Dec 20
A control circuit having: a logic circuit, configured to provide a high side boot-strap capacitor control signal set and a low side boot-strap capacitor control signal set; a high side boot-strap capacitor control circuit, configured to provide a high side power signal to control a high side power switch; a high side boot-strap capacitor, having a first terminal coupled to a control terminal of the high side power switch, and a second terminal coupled to the high side boot-strap capacitor control circuit; a low side boot-strap capacitor control circuit, configured to provide a low side power signal to control a low side power switch; and a low side boot-strap capacitor, having a first terminal coupled to a control terminal of the low side power switch, and a second terminal coupled to the low side boot-strap capacitor control circuit.
Naixing Kuang
Filed: 11 May 20
Utility
Mix-mode PFC Circuit and a Method Thereof
29 Jul 20
A control method of a PFC (Power Factor Correction) circuit having at least one power switch, the control method having: producing an effective value of an input voltage; generating a compensation signal based on an output voltage and an output voltage reference signal; generating an on time signal based on the compensation signal, the effective value of the input voltage, a first on time period value and a second on time period value; generating an on time delay signal based on the input voltage, the output voltage, the first on time period value, the effective value of the input voltage and the compensation signal; and generating a current valley signal based on the input voltage, the effective value of the input voltage, the compensation signal, the second on time period value, and an inductance value of the inductor adopted by the PFC circuit.
Wenbin Lu
Filed: 25 Nov 19
Utility
Test System and Test Method for a Voltage Regulator with Multi-mode Control
22 Jul 20
A test method of a voltage regulator having a plurality of parameters that need to be set, the test method includes: receiving a user requirement on a computer; generating a plurality of setting combinations of the plurality of parameters, the plurality of parameters has different combination of values in different setting combinations; downloading the plurality of setting combinations to the voltage regulator via a first I/O bus and configuring the voltage regulator with each setting combination; configuring communication between a controller provided by the computer and measurement devices; executing the communication between the controller and the measurement devices via a second I/O bus; and displaying test result of each configured voltage regulator on the computer.
Lei Miao, Long Li, Siran Wang
Filed: 20 Jan 20
Utility
Single Stage Multi-outputs Circuit and a Method Thereof
8 Jul 20
A control circuit of a power converter providing at least a first output voltage and a second output voltage, having: a first loop control circuit, configured to provide a first error amplifying signal based on the first output voltage and a first reference voltage; a second loop control circuit, configured to provide a second error amplifying signal based on the second output voltage and a second reference voltage; a saturation detecting circuit, configured to provide a saturation indicating signal based on the first error amplifying signal and a saturation reference signal; and a first current source circuit, configured to charge an output terminal of the second error amplifier based on the saturation indicating signal.
Bairen Liu, Shufa Jiang, Bo Yu
Filed: 25 Nov 19
Utility
Control Circuit Having Power Limit for an Ac-dc Converter and Integrated Circuits Thereof
1 Jul 20
A control circuit having power limit for controlling an AC-DC voltage converter.
Yuedong Chen, Haishi Wang, Lin Feng
Filed: 18 Dec 19
Utility
Current Generating Circuit Generating a Current Relevant to a Reference Voltage
17 Jun 20
A current generating circuit generating a current relevant to a reference voltage.
Zhijiang Yang
Filed: 10 Dec 19
Utility
Daisy-chain Battery Cells System with Differential Communication Interfaces
17 Jun 20
A daisy-chain battery cells system having a plurality of differential communication interfaces {F(i), i=1, . . . , N} respectively coupled to a plurality of voltage measuring modules {S(i), i=1, . . . , N} for a plurality of battery cells {C(i), i=1, . . . , N}.
Min Xu, Kai Chen, Xiaohong Li
Filed: 10 Dec 19
Utility
Lateral Schottky Diode with High Breakdown Voltage Capability
10 Jun 20
A lateral diode with high breakdown voltage capability and a method for forming the lateral diode.
Yanjie Lian, Daping Fu
Filed: 9 Dec 19
Utility
Battery Charging Circuit, Control Circuit and Associated Control Method
10 Jun 20
A battery charging circuit providing a charging current to a battery via a charging transistor.
Junchang Chang
Filed: 5 Dec 19
Utility
Switched Tank Converter with Low Voltage Stress
10 Jun 20
A switched tank converter includes: a first conversion unit and a second conversion unit, each having a clamp capacitor coupled between a first terminal and a third terminal, a high side switch coupled between the first terminal and a switch node, a low side switch coupled between the switch node and a second terminal, and a resonant tank coupled between the switch node and a fourth terminal; and a rectification unit having four rectification switches, wherein a second terminal of the first rectification switch and a first terminal of the third rectification switch are coupled to the fourth terminals of the first and second conversion units, a second terminal of the fourth rectification switch and a first terminal of the second rectification switch are coupled to the third terminals of the first and second conversion units.
Hao-Chien Cheng
Filed: 24 Nov 19
Utility
Controller and Control Method Used In Switched Tank Converter
10 Jun 20
A control method used in a switched tank converter with a first conversion unit, a second conversion unit and a rectification unit, includes: based on current flowing through the resonant tanks in the first and second conversion units, determining when to turn on the high side switches of the first and second conversion units, and when to turn on the low side switches of the first and second conversion units; detecting whether current flowing through the first, second, third and fourth rectification switches crosses zero; and based on the detection result, respectively determining when to turn off the high side switch of the first conversion unit, when to turn off the high side switch of the second conversion unit, when to turn off the low side switch of the second conversion unit, and when to turn off the low side switch of the first conversion unit.
Hao-Chien Cheng
Filed: 24 Nov 19
Utility
Cot Controlled Multi-phase Converter and Control Circuit Thereof
27 May 20
A COT control circuit used for realizing current sharing in multi-phase DC-DC converter.
Tianzhu Zhang
Filed: 24 Nov 19
Utility
Switching Power Supply Circuit with Synchronous Rectifier and Associated Control Circuit and Control Method
20 May 20
A switching power supply circuit has an energy storage component, a synchronous rectifier switch and a synchronous rectifier control circuit.
Hui Li, Siran Wang, Lei Miao
Filed: 17 Dec 19
Utility
Symmetrical Power Stages for High Power Integrated Circuits
13 May 20
A circuit assembly for a power converter includes a substrate, power stage integrated circuit (IC) dies, and output inductors that connect switch nodes of the power stage IC dies to an output node of the power converter.
Jinghai ZHOU, Chia-Hsin CHANG
Filed: 15 Jan 20