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公开(公告)号：US11486052B2
公开(公告)日：2022-11-01
申请号：US17562032
申请日：2021-12-27
Inventor： Chun-Hsiang Kao , Yi-Cherng Ferng , Kuo-Kuang Jen , Shun-Yi Jian , Ming-Hsien Lin , Yu-Chih Tzeng , Chia-Yu Lee
Abstract: Provides an electropolishing treatment method for a stainless steel workpiece, wherein the method comprises the following steps: placing the stainless steel workpiece in an oxalic acid solution and performing supersonic oscillation; performing a first electropolishing treatment to the stainless steel workpiece, wherein the first electropolishing treatment uses the stainless steel workpiece as an anode and 10% to 15% perchloric acid as an electrolyte, and when a constant voltage is set as 12V, the first electropolishing treatment procedure is performed; and performing a second electropolishing treatment to the stainless steel workpiece, wherein the second electropolishing treatment uses the stainless steel workpiece after the first electropolishing treatment as an anode, and an electrolyte consists of ethanol, sulfuric acid and perchloric acid, and when a constant voltage is set as 12V, the second electropolishing treatment is performed to obtain the stainless steel workpiece after the second electropolishing treatment.
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公开(公告)号：US20210187699A1
公开(公告)日：2021-06-24
申请号：US16719899
申请日：2019-12-18
Inventor： Po-Shen Lin , Ming-Wei Liu , Chih-Peng Chen , Kuo-Kuang Jen
IPC: B24C5/00
Abstract: The present invention discloses a multi-dimensional vibration grinding cavity body. By adjusting amplitudes (power) and frequencies of the multi-dimensional ultrasonic vibration source, such that the multi-directional macroscopic flow is formed in the cavity body while keeping the vibration medium to have the original characteristics to improve the performance of grinding of slurry.
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公开(公告)号：US10444295B2
公开(公告)日：2019-10-15
申请号：US15848177
申请日：2017-12-20
Inventor： Shu-Hsien Wen , Kuo-Kuang Jen , Gwo-Huei You , Chung-Ling Tseng
IPC: H02J7/00 , G01R31/387 , H01M10/42 , H01M10/44
Abstract: A battery balance management circuit includes an active and passive testing balance bus, a plurality of battery sets, a primary charging converter, a secondary charging system, an electrical load and a battery management system. An external balance management mechanism is utilized to compensate for current loss of the battery set, effectively enabling the battery sets to provide stable large current output.
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公开(公告)号：US10377262B2
公开(公告)日：2019-08-13
申请号：US15370889
申请日：2016-12-06
Inventor： Wei-Min Hsiao , Kuo-Kuang Jen , Jeng-Chyan Lin , Hsun-Ming Hsien , Fu-Min Fang
Abstract: Electric vehicle range extending apparatus includes a step-down voltage provision unit, cell voltage sensing unit, cell switching unit, and control unit. The step-down voltage provision unit has an input port to be coupled to the main battery pack or an auxiliary battery pack, and an output port to output a power balancing signal. The cell voltage sensing unit is for being coupled to the battery cells and sensing individual voltages of the battery cells. The cell switching unit, including a plurality of switches, is coupled to the battery cells respectively, and coupled to the output port. The control unit, coupled to the cell voltage sensing unit, step-down voltage provision unit, and cell switching unit, is for controlling the cell switching unit based on the individual voltages of the battery cells so as to apply the power balancing signal to at least one of the battery cells selectively.
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公开(公告)号：US20190186669A1
公开(公告)日：2019-06-20
申请号：US16169986
申请日：2018-10-24
Inventor： Po-Shen Lin , Chih-Peng Chen , Kuo-Kuang Jen , Yu-Ching Tseng
Abstract: The curved flow channel with built-in lattice structure provided by the present application is configured with the lattice structure disposed at the outer inside wall of the curved section away from a center of curvature of the curved section. Through geometry and distribution design of the lattice structure, flow rate and flow direction of fluid impacting the lattice structure can be altered, which achieves the purpose of flow rate redistribution in the curved flow channel and produces a downstream flow field with uniform distribution.
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Patent Agency Ranking
公开(公告)号：US09397549B2
公开(公告)日：2016-07-19
申请号：US14217299
申请日：2014-03-17
Inventor： Kun-Feng Chen , Kuo-Kuang Jen , Jong-Chin Hwang , Po-Cheng Chen
Abstract: A power conversion system for controlling harmonics, which uses the Fourier transform analysis to calculate the harmonics element of each current, and adds the harmonics compensation strategy into the control strategy of the DC-AC power converter so as to decrease the harmonics element generated from the actual current.
Abstract translation: 一种用于控制谐波的电力转换系统，其使用傅里叶变换分析来计算每个电流的谐波元素，并将谐波补偿策略添加到DC-AC功率转换器的控制策略中，以减少从 实际电流。
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公开(公告)号：US08786215B2
公开(公告)日：2014-07-22
申请号：US13714381
申请日：2012-12-13
Inventor： Kuo-Kuang Jen , Kuo-Sheng Fu , Ying-Sun Huang , Ywh-Ming Gong , Zen-Shan Chang
CPC classification number: H05B33/0815 , H05B33/0803 , H05B33/0824 , H05B37/02 , H05B41/2821
Abstract: The present invention relates to a double-output high-efficiency LED light-modulating circuit, comprising: a single-stage flyback power factor corrector, a DC/DC convertor, an LED module, and a light-modulating switch. In the present invention, it mainly utilizes the single-stage flyback power factor corrector for carrying out the purposes of reducing the components of an LED luminaire controlling circuit and increasing the circuit power conversion efficiency. Moreover, the double-output high-efficiency LED light-modulating circuit further includes a twin-bus light modulation framework, which can not only reduce the cross voltage of the power switch in back-end DC/DC convertor, but also process a high-frequency light modulation and a low-frequency light modulation to the LED luminaire. Therefore, because the cross voltage of the power switch has been reduced, a power switch with lower Rds can be used in the back-end DC/DC convertor for increasing switching speed and reducing switching losses.
Abstract translation: 本发明涉及一种双输出高效率LED调光电路，包括：单级回扫功率因数校正器，DC / DC转换器，LED模块和光调制开关。 在本发明中，它主要利用单级反激式功率因数校正器来实现减少LED照明器控制电路的组件并提高电路功率转换效率的目的。 此外，双输出高效率LED调光电路还包括双总线调光框架，其不仅可以降低后端DC / DC转换器中的电源开关的交叉电压，而且可以处理高 对LED灯具进行光频调制和低频光调制。 因此，由于功率开关的交叉电压已经降低，所以后端DC / DC转换器可以使用具有较低Rds的电源开关，以提高开关速度并降低开关损耗。
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公开(公告)号：US20140153293A1
公开(公告)日：2014-06-05
申请号：US13689757
申请日：2012-11-30
Inventor： Zen-Shan Chang , Ying-Sun Huang , Kuo-Sheng Fu , Kuo-Kuang Jen , Chien-Min Kao
IPC: H02M3/335
CPC classification number: H02M3/3376 , H02M3/3378 , H02M2007/4815 , Y02B70/1433 , Y02B70/1441 , Y02P80/112
Abstract: The present invention relates to a double-output half-bridge LLC serial resonant converter, comprising: a half-bridge rectifying unit, a first resonant unit, a first transformer unit, a first rectifying unit, a first output unit, a second resonant unit, a second transformer unit, a second rectifying unit, a second output unit, a voltage dividing unit, a voltage regulating unit, a light-coupling isolation unit, and a control unit. In the present invention, the double-output half-bridge LLC serial resonant converter has an inventive circuit framework, which can not only solve the unbalance load current and the output voltage cross regulation occurred in the conventional double-output convertor, but also normally modulate the no-load or light-load output voltage; therefore the output voltage deviation can be effectively controlled.
Abstract translation: 本发明涉及双输出半桥LLC串联谐振变换器，包括：半桥整流单元，第一谐振单元，第一变压器单元，第一整流单元，第一输出单元，第二谐振单元 第二变压器单元，第二整流单元，第二输出单元，分压单元，电压调节单元，光耦合隔离单元和控制单元。 在本发明中，双输出半桥LLC串联谐振变换器具有本发明的电路框架，其不仅可解决传统双输出转换器中发生的不平衡负载电流和输出电压交叉调节，而且还可以正常调制 空载或轻载输出电压; 因此可以有效地控制输出电压偏差。
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公开(公告)号：US20210215761A1
公开(公告)日：2021-07-15
申请号：US16744109
申请日：2020-01-15
Inventor： Wei-Min Hsiao , Shih-Chang Tseng , Kuo-Kuang Jen , Gwo-Huei You , Chih-Hsien Chung
IPC: G01R31/364 , G01R31/36 , H01M10/42 , H01M10/48
Abstract: The present invention discloses an external battery short-circuit testing device, configured to perform short-circuit test on a battery pack under test. The external battery short-circuit testing device comprises a plurality of fuses; a Hall current transducer, coupled to the plurality of fuses; a current meter, coupled to the Hall current transducer and the battery pack under test; a voltmeter, coupled to the battery pack under test; a variable resistor, coupled to the Hall current transducer; an electromagnetic switch, coupled to the variable resistor and the battery pack under test; and an operation unit, comprising a voltage measurement unit, a current measurement unit, a temperature measurement unit and a switch control unit.
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公开(公告)号：US10780504B2
公开(公告)日：2020-09-22
申请号：US15815728
申请日：2017-11-17
Inventor： Yi-Lun Xiao , Li-Tsung Sheng , Shu-San Hsiau , Kuo-Kuang Jen , Chih-Peng Chen , Po-Shen Lin , Chung-Chun Huang
Abstract: A powder recycling system includes a supply tank, a continuous loss-in-weight module, a pneumatic module, a transfer channel, a recycle module, and a refilling tank. The supply tank accommodates recycling powder. The continuous loss-in-weight module includes a storage tank receiving the recycling powder from the supply tank and a rotary output pipe connected to the storage tank to output the recycling powder. The continuous loss-in-weight module controls the mass flow rate of the output of the recycling powder according to the weight change of the storage tank. The pneumatic module enables the recycling powder to float and move in the transfer channel. The recycle module is connected to the transfer channel to receive the recycling powder, sieves the recycling powder, provides virgin powder, and mixes the virgin powder with the recycling powder. The refilling tank is connected to the recycle module to receive the recycling powder and the virgin powder.
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