Patents by Inventor Gwo-Huei You
Gwo-Huei You 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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Publication number: 20190181653Abstract: A battery cell management and balance circuit comprises multiple battery cell balance circuits, multiple battery cell monitor units, multiple battery module balance circuits and a battery management unit. The battery cell balance circuits connect to battery cells for executing a first charge or discharge command. The battery cell monitor units monitor battery cells for generating battery cell information and the first charge or discharge commands. The battery module balance circuits connect to battery modules for executing second charge or discharge commands. The battery management unit connect to the battery cell monitor units for receiving battery cell information and the battery module balance circuits for direct or indirectly generating the second charge or discharge commands to the battery module balance circuits. A battery system and a battery cell management and balance circuit method is also introduced.Type: ApplicationFiled: December 7, 2017Publication date: June 13, 2019Inventors: CHI-SHENG WU, GWO-HUEI YOU, HSUANG-CHANG CHIANG, TSANG-LI TAI
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Publication number: 20190123565Abstract: A charging control method includes the following. (a) An electrical state of a battery set is obtained. (b) Whether the electrical state is greater than a first electrical state threshold is determined and charging control based on a first charging mode or a second charging mode on the battery set is performed accordingly. (c) During the charging control on the battery set, at least one temperature difference value is determined based on temperature values of the battery set at different times. (d) Whether the temperature difference value is greater than a first temperature difference threshold is determined and whether to temporarily stop or continue the charging is determined accordingly. (e) During the charging control on the battery set, the electrical state is obtained, and whether the electrical state satisfies a fully-charged criterion is determined and whether to stop or continue the charging control is determined accordingly.Type: ApplicationFiled: October 19, 2017Publication date: April 25, 2019Inventors: WEI-MIN HSIAO, HSUN-MING HSIEN, KUO-KUANG JEN, GWO-HUEI YOU, JUNG-ZONG WU
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Publication number: 20180166977Abstract: A single-phase bridgeless insulated power factor adjustment circuit includes an EMI filter module, low-frequency switching diode module, two switches and two insulated voltage transformation modules. The EMI filter module is coupled to an AC power. The low-frequency switching diode module is coupled to the EMI filter module. The two switches are coupled to the low-frequency switching diode module. The two insulated voltage transformation modules are coupled to one of the two switches. With the low-frequency switching diode module being in first ON state, one of the two switches turns on, and one of the two insulated voltage transformation modules turns on. With the low-frequency switching diode module being in second ON state, the other switch turns on, and the other insulated voltage transformation module turns on. Hence, the circuit is unlikely to fail, but features simple circuitry, incurs low costs, be compact, and achieves high conversion efficiency.Type: ApplicationFiled: December 12, 2016Publication date: June 14, 2018Inventors: CHI-SHENG WU, GWO-HUEI YOU, HSUANG-CHANG CHIANG, TSANG-LI TAI
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Patent number: 9997993Abstract: A single-phase bridgeless insulated power factor adjustment circuit includes an EMI filter module, low-frequency switching diode module, two switches and two insulated voltage transformation modules. The EMI filter module is coupled to an AC power. The low-frequency switching diode module is coupled to the EMI filter module. The two switches are coupled to the low-frequency switching diode module. The two insulated voltage transformation modules are coupled to one of the two switches. With the low-frequency switching diode module being in first ON state, one of the two switches turns on, and one of the two insulated voltage transformation modules turns on. With the low-frequency switching diode module being in second ON state, the other switch turns on, and the other insulated voltage transformation module turns on. Hence, the circuit is unlikely to fail, but features simple circuitry, incurs low costs, be compact, and achieves high conversion efficiency.Type: GrantFiled: December 12, 2016Date of Patent: June 12, 2018Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Chi-Sheng Wu, Gwo-Huei You, Hsuang-Chang Chiang, Tsang-Li Tai
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Patent number: 9735670Abstract: A power factor correction conversion device and control method thereof are adapted to send an AC signal to a power factor correction conversion device, convert the AC signal into a DC signal, and perform power factor correction of the DC signal, so as to change a power factor sent to a back-end load, wherein the control method includes a rectification step, a feedback step, a ripple calculating step, a ripple offsetting step, a logical computation step, a pulse width modulation step and a power factor correcting step. Hence, the second-order ripple component in a feedback signal is eliminated to thereby increase the response speed of the power factor correction conversion device and reduce the distortion rate of the current, thus increasing the power factor sent to the back-end load.Type: GrantFiled: December 15, 2015Date of Patent: August 15, 2017Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Chi-Sheng Wu, Gwo-Huei You, Hsuang-Chang Chiang, Tsang-Li Tai
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Publication number: 20170170745Abstract: A power factor correction conversion device and control method thereof are adapted to send an AC signal to a power factor correction conversion device, convert the AC signal into a DC signal, and perform power factor correction of the DC signal, so as to change a power factor sent to a back-end load, wherein the control method includes a rectification step, a feedback step, a ripple calculating step, a ripple offsetting step, a logical computation step, a pulse width modulation step and a power factor correcting step. Hence, the second-order ripple component in a feedback signal is eliminated to thereby increase the response speed of the power factor correction conversion device and reduce the distortion rate of the current, thus increasing the power factor sent to the back-end load.Type: ApplicationFiled: December 15, 2015Publication date: June 15, 2017Inventors: CHI-SHENG WU, GWO-HUEI YOU, HSUANG-CHANG CHIANG, TSANG-LI TAI
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Publication number: 20160181809Abstract: A grid system conducive to enhancement of power supply performance comprises a plurality of signal regulation devices are jointly connected to a load; the signal regulation devices are each connected to a DC/DC conversion circuit and a DC/AC changing circuit through a power modulation module; an input end of the DC/DC conversion circuit receives a power signal provided by a renewable power module, and then the power modulation module performs loop control on the DC/DC conversion circuit and the DC/AC changing circuit in accordance with the power signal, the load, and/or a power state of utility electricity, such that output power of the grid system maintains high stability and low distortion and attains a satisfactory power adjustment rate at a low cost so as to make good use of all power resources and thus enhance the efficiency of overall power utilization of the grid system.Type: ApplicationFiled: December 17, 2014Publication date: June 23, 2016Inventors: HSUANG-CHANG CHIANG, KUO-KUANG JEN, GWO-HUEI YOU, KE-CHIH LIU
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Publication number: 20160181925Abstract: A bidirectional DC-DC converter applies to a charging and discharging system equipped with a battery and especially to power fluctuations arising from the charging and discharging of the battery. The bidirectional DC-DC converter has a first full-bridge switching unit, transformer, resonance unit, second full-bridge switching unit, and frequency change control module. The first full-bridge switching unit connects with a first DC power source. The transformer has a primary side connected to the first switching unit to receive a power from the first DC power source and has a secondary side connected to the second full-bridge switching unit. The resonance unit connects with the transformer's secondary-side winding and receives power to produce resonance. The second full-bridge switching unit connects with a second DC power source. The frequency change control module instructs the switching units to perform bidirectional buck-boost switching and changes the operating frequency to adjust voltage gain.Type: ApplicationFiled: December 17, 2014Publication date: June 23, 2016Inventors: HSUANG-CHANG CHIANG, KUO-KUANG JEN, GWO-HUEI YOU, KE-CHIH LIU
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Publication number: 20150270782Abstract: The present invention relates to a controlling method for multi-leg isolation DC/DC converter with wide input voltage scope, in which a transformer having at least three primary winding coils and one secondary winding coil is provided in a multi-leg DC/DC converter. Moreover, a converter controlling module is provided to treat the DC input voltage and the DC output voltage received from the multi-leg DC/DC converter with an over voltage determination, therefore the converter controlling module is able to output a proper driving signal to a plurality of power switch sets of the multi-leg DC/DC converter for making the power switch sets be operated at different ON/OFF states, so as to make the transformer has a specific coil turn ratio. By such way, the DC input voltage of the multi-leg DC/DC converter would be automatic modulated for facilitating the multi-leg DC/DC converter to provide a stable DC output voltage.Type: ApplicationFiled: March 18, 2014Publication date: September 24, 2015Applicant: Chung-Shan Institute of Science and TechnologyInventors: Jonq-Chin Hwang, Po-Cheng Chen, Ywh-Ming Gong, Gwo-Huei You
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Patent number: 8929101Abstract: The invention provides a DC to DC converting circuit, comprising: a transforming unit with a primary winding and a secondary winding; a bridge rectifier unit coupled to an input voltage, having a first output terminal and a second output terminal coupled to both side of the primary winding respectively; a first switch coupled between the input voltage and the first output terminal; a second switch coupled between the first output terminal and a ground terminal; a third switch coupled between the input voltage and the second output terminal; and a fourth switch coupled between the second output terminal and the ground terminal; an output unit paralleled to the secondary winding; and a clamping unit coupled to the input voltage and paralleled to the bridge rectifier unit, having an auxiliary switch coupled to the input voltage; and a clamping capacitor coupled between the auxiliary switch and the ground terminal; wherein the auxiliary switch is turned on when operation statuses of the first switch and the fourtType: GrantFiled: December 17, 2012Date of Patent: January 6, 2015Inventors: Kuo-Kuang Jen, Yu-Min Liao, Chen-Ho Huang, Chien-Min Kao, Gwo-Huei You
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Publication number: 20140169041Abstract: The invention provides a DC to DC converting circuit, comprising: a transforming unit with a primary winding and a secondary winding; a bridge rectifier unit coupled to an input voltage, having a first output terminal and a second output terminal coupled to both side of the primary winding respectively; a first switch coupled between the input voltage and the first output terminal; a second switch coupled between the first output terminal and a ground terminal; a third switch coupled between the input voltage and the second output terminal; and a fourth switch coupled between the second output terminal and the ground terminal; an output unit paralleled to the secondary winding; and a clamping unit coupled to the input voltage and paralleled to the bridge rectifier unit, having an auxiliary switch coupled to the input voltage; and a clamping capacitor coupled between the auxiliary switch and the ground terminal; wherein the auxiliary switch is turned on when operation statuses of the first switch and the fourtType: ApplicationFiled: December 17, 2012Publication date: June 19, 2014Applicant: CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Kuo-Kuang Jen, Yu-Min Liao, Chen-Ho Huang, Chien-Min Kao, Gwo-Huei You
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Publication number: 20140160798Abstract: The present invention relates to a voltage converting circuit of active-clamping zero voltage switch, consisting of a transformed unit, a primary-side input unit, a second-side output unit, and a first switch, wherein the primary-side input unit has a clamping capacitor and a second switch, which are used for avoid from the production of spike voltage on the first switch when the first switch is turned off, so as to increase the voltage conversion efficiency of the voltage converting circuit.Type: ApplicationFiled: December 10, 2012Publication date: June 12, 2014Applicant: CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Chih-Hsien Chung, Gwo-Huei You, Kun-Feng Chen, Kuo-Kuang Jen, Yu-Min Liao
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Publication number: 20140153289Abstract: The present invention relates to a secondary side serial resonant full-bridge DC/DC converter, comprising: a transistor full-bridge unit, a transformer unit, a resonant unit, a rectifying unit, and an output unit. Particularly, in the present invention, a resonant inductor and a resonant capacitor of the resonant unit and a load resistor of the output unit constitute a serial resonant circuit having a serial resonant frequency; therefore, when the circuit frequency is operated on the serial resonant frequency, the resonant inductor impedance would be offset by the resonant capacitor impedance, such that the circuit is operated in the zero current switch (ZCS) region, and the output voltage variation can be controlled in ±0.2%. Moreover, through the serial resonant circuit, the issue about the resonant components hard to be designed due to their small characteristic impedance can simultaneously be improved.Type: ApplicationFiled: November 30, 2012Publication date: June 5, 2014Applicant: CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Chien-Min Kao, Gwo-Huei You, Kun-Feng Chen, Kuo-Kuang Jen, Yu-Min Liao