Patents by Inventor Ming-Chieh Cheng
Ming-Chieh Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9667160Abstract: A step-down DC converter configured to smooth ripple voltage. The step-down DC converter includes a ripple-filtering inductor, a power isolating and converting unit, a power switch, a first capacitor, a second capacitor, a first rectifying switch, a second rectifying switch, and a first inductor. The power isolating and converting unit includes a plurality of windings for separating the step-down-DC converter into an input stage and an output stage. The power switch and the first capacitor are arranged at the input stage, and the first capacitor is connected to the power switch. The second capacitor, the first rectifying switch, the rectifying switch, and the first inductor are arranged at the output stage, the second capacitor is connected to one terminal of the first inductor, and the other terminal of the first inductor is connected to the first rectifying switch and the second rectifying switch.Type: GrantFiled: August 24, 2016Date of Patent: May 30, 2017Assignees: ALLIS ELECTRIC CO., LTD.Inventors: Ching-Tsai Pan, Ming-Chieh Cheng
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Patent number: 9641096Abstract: An energy-saving power supply apparatus includes a bridge rectifier, a diode bypass circuit and a control circuit. The diode bypass circuit is electrically connected to the bridge rectifier. The control circuit is electrically connected to the diode bypass circuit and the bridge rectifier. The bridge rectifier includes a plurality of diodes. After the control circuit receives a power start signal, the control circuit is configured to control the diode bypass circuit, so that a part of the diodes are bypassed to save energy.Type: GrantFiled: June 29, 2015Date of Patent: May 2, 2017Assignee: Chicony Power Technology Co., Ltd.Inventors: Wen-Nan Huang, Shiu-Hui Lee, Chih-Ming Yu, Hsin-Chang Yu, Jhen-Siang Huang, Ming-Chieh Cheng, Chang-Li Hsieh, Jung-Shan Hsieh
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Patent number: 9621843Abstract: A method for dynamic adjustment of video resolution when watching TV, sets a first, second, and third threshold values for a Received Signal Strength Indication (RSSI), the first threshold value being greater than the second threshold value and the second threshold value being greater than the third threshold value. A working mode of a receiving WI-FI device is detected. An RSSI value of WI-FI signals being received by a user terminal is calculated and the RSSI value is compared with first, second, and third threshold values. Taking working mode of the WI-FI device into account, the video resolution of video streams to be transmitted are adjusted according to results of comparisons and the adjusted video streams are transmitted to the user terminal.Type: GrantFiled: April 22, 2016Date of Patent: April 11, 2017Assignees: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventor: Ming-Chieh Cheng
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Publication number: 20170080775Abstract: Electric vehicle thermal management systems and electric vehicles using the thermal management system, are disclosed. A passenger cabin is heated by the heat dissipated from a battery and/or a motor. A cooling circuit in the management system fluidly connects the battery, the motor and a first radiator in series. The first radiator provides a heat source to the passenger cabin by means of the heat dissipated from the battery and/or the electric motor. Under certain conditions, the electric motor is selectively separated from the cooling circuit, so that when the passenger cabin needs to be heated, the thermal management system can provide heat to the passenger cabin without affecting the heat dissipation of the battery.Type: ApplicationFiled: November 30, 2016Publication date: March 23, 2017Applicant: Thunder Power Hong Kong Ltd.Inventor: Ming-Chieh Cheng
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Publication number: 20170080776Abstract: Electric vehicle thermal management systems and electric vehicles using the thermal management system, are disclosed. A passenger cabin is heated by the heat dissipated from a battery and/or a motor. A cooling circuit in the management system fluidly connects the battery, the motor and a first radiator in series. The first radiator provides a heat source to the passenger cabin by means of the heat dissipated from the battery and/or the electric motor. Under certain conditions, the electric motor is selectively separated from the cooling circuit, so that when the passenger cabin needs to be heated, the thermal management system can provide heat to the passenger cabin without affecting the heat dissipation of the battery.Type: ApplicationFiled: November 30, 2016Publication date: March 23, 2017Applicant: Thunder Power Hong Kong Ltd.Inventor: Ming-Chieh Cheng
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Publication number: 20170080774Abstract: An electric vehicle thermal management system and an electric vehicle using the thermal management system, wherein a passenger cabin is heated by the heat dissipated from a battery and/or a motor, and the battery and the electric motor are connected in different cooling paths. Heat is supplied to the passenger cabin by using the heat absorbed by cooling liquid from the battery and/or the motor, so that the electric power of the electric vehicle can be effectively utilized to increase the endurance mileage of the electric vehicle.Type: ApplicationFiled: November 29, 2016Publication date: March 23, 2017Applicant: Thunder Power Hong Kong Ltd.Inventor: Ming-Chieh Cheng
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Publication number: 20170072768Abstract: An electric vehicle thermal management system and an electric vehicle using the thermal management system, wherein a passenger cabin is heated by the heat dissipated from a battery and/or a motor, and the battery and the electric motor are connected in different cooling paths. Heat is supplied to the passenger cabin by using the heat absorbed by cooling liquid from the battery and/or the motor, so that the electric power of the electric vehicle can be effectively utilized to increase the endurance mileage of the electric vehicle.Type: ApplicationFiled: November 29, 2016Publication date: March 16, 2017Applicant: Thunder Power Hong Kong Ltd.Inventor: Ming-Chieh Cheng
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Publication number: 20170064248Abstract: A method for dynamic adjustment of video resolution when watching TV, sets a first, second, and third threshold values for a Received Signal Strength Indication (RSSI), the first threshold value being greater than the second threshold value and the second threshold value being greater than the third threshold value. A working mode of a receiving WI-FI device is detected. An RSSI value of WI-FI signals being received by a user terminal is calculated and the RSSI value is compared with first, second, and third threshold values. Taking working mode of the WI-FI device into account, the video resolution of video streams to be transmitted are adjusted according to results of comparisons and the adjusted video streams are transmitted to the user terminal.Type: ApplicationFiled: April 22, 2016Publication date: March 2, 2017Inventor: MING-CHIEH CHENG
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Patent number: 9539877Abstract: Electric vehicle thermal management systems and electric vehicles using the thermal management system, are disclosed. A passenger cabin is heated by the heat dissipated from a battery and/or a motor. A cooling circuit in the management system fluidly connects the battery, the motor and a first radiator in series. The first radiator provides a heat source to the passenger cabin by means of the heat dissipated from the battery and/or the electric motor. Under certain conditions, the electric motor is selectively separated from the cooling circuit, so that when the passenger cabin needs to be heated, the thermal management system can provide heat to the passenger cabin without affecting the heat dissipation of the battery.Type: GrantFiled: December 14, 2015Date of Patent: January 10, 2017Assignee: THUNDER POWER HONG KONG LTD.Inventor: Ming-Chieh Cheng
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Patent number: 9533547Abstract: An electric vehicle thermal management system and an electric vehicle using the thermal management system, wherein a passenger cabin is heated by the heat dissipated from a battery and/or a motor, and the battery and the electric motor are connected in different cooling paths. Heat is supplied to the passenger cabin by using the heat absorbed by cooling liquid from the battery and/or the motor, so that the electric power of the electric vehicle can be effectively utilized to increase the endurance mileage of the electric vehicle.Type: GrantFiled: December 14, 2015Date of Patent: January 3, 2017Assignee: THUNDER POWER HONG KONG LTD.Inventor: Ming-Chieh Cheng
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Patent number: 9533546Abstract: An electric vehicle thermal management system and an electric vehicle using the thermal management system, wherein a passenger cabin is heated by the heat dissipated from a battery and/or a motor, and the battery and the electric motor are connected in different cooling paths. Heat is supplied to the passenger cabin by using the heat absorbed by cooling liquid from the battery and/or the motor, so that the electric power of the electric vehicle can be effectively utilized to increase the endurance mileage of the electric vehicle.Type: GrantFiled: August 3, 2015Date of Patent: January 3, 2017Assignee: THUNDER POWER HONG KONG LTD.Inventor: Ming-Chieh Cheng
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Patent number: 9533551Abstract: Electric vehicle thermal management systems and electric vehicles using the thermal management system, are disclosed. A passenger cabin is heated by the heat dissipated from a battery and/or a motor. A cooling circuit in the management system fluidly connects the battery, the motor and a first radiator in series. The first radiator provides a heat source to the passenger cabin by means of the heat dissipated from the battery and/or the electric motor. Under certain conditions, the electric motor is selectively separated from the cooling circuit, so that when the passenger cabin needs to be heated, the thermal management system can provide heat to the passenger cabin without affecting the heat dissipation of the battery.Type: GrantFiled: August 3, 2015Date of Patent: January 3, 2017Assignee: THUNDER POWER HONG KONG LTD.Inventor: Ming-Chieh Cheng
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Publication number: 20160380553Abstract: An energy-saving power supply apparatus includes a bridge rectifier, a diode bypass circuit and a control circuit. The diode bypass circuit is electrically connected to the bridge rectifier. The control circuit is electrically connected to the diode bypass circuit and the bridge rectifier. The bridge rectifier includes a plurality of diodes. After the control circuit receives a power start signal, the control circuit is configured to control the diode bypass circuit, so that a part of the diodes are bypassed to save energy.Type: ApplicationFiled: June 29, 2015Publication date: December 29, 2016Inventors: Wen-Nan HUANG, Shiu-Hui LEE, Chih-Ming YU, Hsin-Chang Yu, Jhen-Siang HUANG, Ming-Chieh CHENG, Chang-Li HSIEH, Jung-Shan HSIEH
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Publication number: 20160272044Abstract: An electric vehicle thermal management system and an electric vehicle using the thermal management system, wherein a passenger cabin is heated by the heat dissipated from a battery and/or a motor, and the battery and the electric motor are connected in different cooling paths. Heat is supplied to the passenger cabin by using the heat absorbed by cooling liquid from the battery and/or the motor, so that the electric power of the electric vehicle can be effectively utilized to increase the endurance mileage of the electric vehicle.Type: ApplicationFiled: August 3, 2015Publication date: September 22, 2016Inventor: Ming-Chieh Cheng
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Publication number: 20160272040Abstract: An electric vehicle thermal management system and an electric vehicle using the thermal management system, wherein a passenger cabin is heated by the heat dissipated from a battery and /or a motor, and the battery and the electric motor are connected in different cooling paths. Heat is supplied to the passenger cabin by using the heat absorbed by cooling liquid from the battery and/or the motor, so that the electric power of the electric vehicle can be effectively utilized to increase the endurance mileage of the electric vehicle.Type: ApplicationFiled: December 14, 2015Publication date: September 22, 2016Inventor: Ming-Chieh Cheng
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Publication number: 20160272043Abstract: Electric vehicle thermal management systems and electric vehicles using the thermal management system, are disclosed. A passenger cabin is heated by the heat dissipated from a battery and/or a motor. A cooling circuit in the management system fluidly connects the battery, the motor and a first radiator in series. The first radiator provides a heat source to the passenger cabin by means of the heat dissipated from the battery and/or the electric motor. Under certain conditions, the electric motor is selectively separated from the cooling circuit, so that when the passenger cabin needs to be heated, the thermal management system can provide heat to the passenger cabin without affecting the heat dissipation of the battery.Type: ApplicationFiled: August 3, 2015Publication date: September 22, 2016Inventor: Ming-Chieh Cheng
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Publication number: 20160272039Abstract: Electric vehicle thermal management systems and electric vehicles using the thermal management system, are disclosed. A passenger cabin is heated by the heat dissipated from a battery and/or a motor. A cooling circuit in the management system fluidly connects the battery, the motor and a first radiator in series. The first radiator provides a heat source to the passenger cabin by means of the heat dissipated from the battery and/or the electric motor. Under certain conditions, the electric motor is selectively separated from the cooling circuit, so that when the passenger cabin needs to be heated, the thermal management system can provide heat to the passenger cabin without affecting the heat dissipation of the battery.Type: ApplicationFiled: December 14, 2015Publication date: September 22, 2016Inventor: Ming-Chieh Cheng
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Publication number: 20150326105Abstract: The present invention relates to a pulsating current ripple cancelling circuit and a power converting system using the same cancelling circuit. The pulsating current ripple cancelling circuit includes a first transformer having a primary winding side and a secondary winding side; a second transformer having a primary winding side and a secondary winding side, wherein the primary winding side of the second transformer is electrically coupled with the primary winding side of the first transformer; a first diode electrically coupled with the secondary winding side of the first transformer; a first equivalent capacitor combination electrically coupled with the primary winding side of the first transformer; and a second equivalent capacitor combination electrically coupled with the secondary winding side of the second transformer.Type: ApplicationFiled: April 6, 2015Publication date: November 12, 2015Applicant: NATIONAL TSING HUA UNIVERSITYInventors: Ching-Tsai PAN, Ming-Chieh CHENG
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Patent number: 8971058Abstract: A high-efficiency high step-up ratio direct current converter with an interleaved soft-switching mechanism is provided. The direct current converter includes a voltage-multiplier circuit and an active clamping circuit. The voltage-multiplier circuit includes two isolating transformers, two main switches disposed on a primary side of the two isolating transformers, four diodes disposed on a secondary side of the two isolating transformers and four capacitors disposed on the secondary side of two isolating transformers, configured to boost a voltage of a direct-current power to a desired voltage value. The active clamping circuit, electrically connected to the voltage-multiplier circuit, includes two active clamp switches and a clamp capacitor to lower a voltage surge of the two main switches so that the two main switches and the two active clamp switches can be soft switched on.Type: GrantFiled: August 23, 2012Date of Patent: March 3, 2015Assignee: Allis Electric Co., Ltd.Inventors: Ching-Tsai Pan, Ming-Chieh Cheng, Ching-Ming Lai, Yen-Liang Chou, Chih-Hsing Fang, Wen-Wei Chan
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Publication number: 20140112026Abstract: A resonant DC converter, combines a voltage type auto charge pump circuit with a full-bridge or half-bridge resonant DC conversion circuit at a primary side of a transformer, combines a double-voltage rectifier circuit at a secondary side of the transformer, and grants the circuit of the invention with characteristics of variable circuit architecture by means of the design of circuit parameters and the action of the LC resonant circuit. Integration of switching elements of the converter circuit and the use of characteristics of automatically changing the circuit architecture contribute to reduce the switching losses and increase the circuit conversion efficiency. Low output voltage ripple enables the circuit of the invention to avoid using large-capacitance electrolytic capacitors and be able to extend the service life of the transformer. The operation of the circuit of the invention at boost or buck mode can be controlled by adjusting the circuit parameters.Type: ApplicationFiled: November 26, 2012Publication date: April 24, 2014Applicant: NATIONAL TSING HUA UNIVERSITYInventors: Ching-Tsai Pan, Po-Yen Chen, Ming-Chieh Cheng, Ching-Hsiang Cheng