公开(公告)号：US08378654B2

公开(公告)日：2013-02-19

申请号：US12750260

申请日：2010-03-30

Applicant: Chan-Hong Chern ,  Tzu Ching Chang ,  Min-Shueh Yuan ,  Yuwen Swei ,  Chih-Chang Lin ,  Chiang Pu ,  Ming-Chieh Huang ,  Kuoyuan Hsu

Inventor： Chan-Hong Chern ,  Tzu Ching Chang ,  Min-Shueh Yuan ,  Yuwen Swei ,  Chih-Chang Lin ,  Chiang Pu ,  Ming-Chieh Huang ,  Kuoyuan Hsu

IPC: G05F1/44

CPC classification number: H02M3/158 ,  G05F1/44 ,  G05F1/56

Abstract: A voltage regulator circuit with high accuracy and Power Supply Rejection Ratio (PSRR) is provided. In one embodiment, an op-amp with a voltage reference input to an inverting input has the first output connected to a PMOS transistor's gate. The PMOS transistor's source and drain are each connected to the power supply and the voltage regulator output. The voltage regulator output is connected to an NMOS transistor biased in saturation mode and a series of two resistors. The non-inverting input of the op-amp is connected in between the two resistors for the first feedback loop. The op-amp's second output is connected to the gate of the NMOS transistor through an AC-coupling capacitor for the second feedback loop. The op-amp's first output can be connected to the power supply voltage through a capacitor to further improve high frequency PSRR. In another embodiment, the role of PMOS and NMOS transistors is reversed.

Abstract translation: 提供了具有高精度和电源抑制比（PSRR）的稳压电路。 在一个实施例中，具有到反相输入的电压参考输入的运算放大器具有连接到PMOS晶体管的栅极的第一输出。 PMOS晶体管的源极和漏极各自连接到电源和稳压器输出。 电压调节器输出连接到偏置在饱和模式的NMOS晶体管和一系列两个电阻。 运算放大器的非反相输入端连接在第一个反馈回路的两个电阻之间。 运算放大器的第二个输出通过用于第二反馈回路的交流耦合电容器连接到NMOS晶体管的栅极。 运算放大器的第一个输出可以通过电容连接到电源电压，以进一步提高高频PSRR。 在另一个实施例中，PMOS和NMOS晶体管的作用相反。

公开(公告)号：US20130127433A1

公开(公告)日：2013-05-23

申请号：US13744037

申请日：2013-01-17

Applicant: Chan-Hong CHERN ,  Tzu Ching CHANG ,  Min-Shueh YUAN ,  Yuwen SWEI ,  Chih-Chang LIN ,  Chiang PU ,  Ming-Chieh HUANG ,  Kuoyuan HSU

Inventor： Chan-Hong CHERN ,  Tzu Ching CHANG ,  Min-Shueh YUAN ,  Yuwen SWEI ,  Chih-Chang LIN ,  Chiang PU ,  Ming-Chieh HUANG ,  Kuoyuan HSU

IPC: G05F1/44

CPC classification number: H02M3/158 ,  G05F1/44 ,  G05F1/56

Abstract: A method of operating a voltage regulator circuit includes generating a control signal by an amplifier of the voltage regulator circuit. The control signal is generated based on a reference signal at an inverting input of the amplifier and a feedback signal at a non-inverting input of the amplifier. A driving current flowing toward an output node of the voltage regulator circuit is generated by a driver responsive to the control signal, and the driver is coupled between a first power node and the output node. The feedback signal is generated responsive to a voltage level at the output node. A transistor, coupled between the output node and a second power node, is caused to operate in saturation mode during a period while the voltage regulator circuit is operating.

Abstract translation: 一种操作电压调节器电路的方法包括由稳压器电路的放大器产生控制信号。 控制信号基于放大器的反相输入处的参考信号和放大器的非反相输入端的反馈信号而产生。 通过响应于控制信号的驱动器产生朝向电压调节器电路的输出节点流动的驱动电流，并且驱动器耦合在第一功率节点和输出节点之间。 响应于输出节点处的电压电平产生反馈信号。 耦合在输出节点和第二功率节点之间的晶体管在电压调节器电路工作期间的一段时间内使其工作在饱和模式。

公开(公告)号：US20140266114A1

公开(公告)日：2014-09-18

申请号：US14291426

申请日：2014-05-30

Applicant: Chan-Hong CHERN ,  Tzu Ching CHANG ,  Min-Shueh YUAN ,  Yuwen SWEI ,  Chih-Chang LIN ,  Chiang PU ,  Ming-Chieh HUANG ,  Kuoyuan HSU

Inventor： Chan-Hong CHERN ,  Tzu Ching CHANG ,  Min-Shueh YUAN ,  Yuwen SWEI ,  Chih-Chang LIN ,  Chiang PU ,  Ming-Chieh HUANG ,  Kuoyuan HSU

IPC: H02M3/158

CPC classification number: H02M3/158 ,  G05F1/44 ,  G05F1/56

Abstract: A voltage regulator circuit comprises an amplifier having an inverting input and a non-inverting input. The amplifier is configured to generate a control signal based on a reference signal at the inverting input of the amplifier and a feedback signal at the non-inverting input of the amplifier. The voltage regulator circuit also comprises an output node, a first power node, a second power node, and a driver that generates a driving current flowing toward the output node in response to the control signal. The driver is coupled between the first power node and the output node. A first transistor having a gate is coupled between the output node and the second power node. A bias circuit outside the amplifier supplies a bias signal to the gate of the first transistor, which is configured to operate in a saturation mode based on the bias signal supplied by the bias circuit.

Abstract translation: 电压调节器电路包括具有反相输入和非反相输入的放大器。 放大器被配置为基于放大器的反相输入端处的参考信号和放大器的非反相输入端的反馈信号产生控制信号。 电压调节器电路还包括响应于控制信号产生朝向输出节点流动的驱动电流的输出节点，第一功率节点，第二功率节点和驱动器。 驱动器耦合在第一功率节点和输出节点之间。 具有栅极的第一晶体管耦合在输出节点和第二功率节点之间。 放大器外部的偏置电路向第一晶体管的栅极提供偏置信号，该偏置信号被配置为基于偏置电路提供的偏置信号在饱和模式下工作。

公开(公告)号：US20100253303A1

公开(公告)日：2010-10-07

申请号：US12750260

申请日：2010-03-30

Applicant: Chan-Hong CHERN ,  Tzu Ching CHANG ,  Min-Shueh YUAN ,  Yuwen SWEI ,  Chih-Chang LIN ,  Chiang PU ,  Ming-Chieh HUANG ,  Kuoyuan HSU

Inventor： Chan-Hong CHERN ,  Tzu Ching CHANG ,  Min-Shueh YUAN ,  Yuwen SWEI ,  Chih-Chang LIN ,  Chiang PU ,  Ming-Chieh HUANG ,  Kuoyuan HSU

IPC: G05F1/10

CPC classification number: H02M3/158 ,  G05F1/44 ,  G05F1/56

Abstract: A voltage regulator circuit with high accuracy and Power Supply Rejection Ratio (PSRR) is provided. In one embodiment, an op-amp with a voltage reference input to an inverting input has the first output connected to a PMOS transistor's gate. The PMOS transistor's source and drain are each connected to the power supply and the voltage regulator output. The voltage regulator output is connected to an NMOS transistor biased in saturation mode and a series of two resistors. The non-inverting input of the op-amp is connected in between the two resistors for the first feedback loop. The op-amp's second output is connected to the gate of the NMOS transistor through an AC-coupling capacitor for the second feedback loop. The op-amp's first output can be connected to the power supply voltage through a capacitor to further improve high frequency PSRR. In another embodiment, the role of PMOS and NMOS transistors is reversed.

Abstract translation: 提供了具有高精度和电源抑制比（PSRR）的稳压电路。 在一个实施例中，具有到反相输入的电压参考输入的运算放大器具有连接到PMOS晶体管的栅极的第一输出。 PMOS晶体管的源极和漏极各自连接到电源和稳压器输出。 电压调节器输出连接到偏置在饱和模式的NMOS晶体管和一系列两个电阻。 运算放大器的非反相输入端连接在第一个反馈回路的两个电阻之间。 运算放大器的第二个输出通过用于第二反馈回路的交流耦合电容器连接到NMOS晶体管的栅极。 运算放大器的第一个输出可以通过电容连接到电源电压，以进一步提高高频PSRR。 在另一个实施例中，PMOS和NMOS晶体管的作用相反。

公开(公告)号：US20080272700A1

公开(公告)日：2008-11-06

申请号：US11939642

申请日：2007-11-14

Applicant: Jui-Yu LIN ,  Chwung-Shan KOU ,  Teng-Wei WANG ,  Yan-Ru PAN ,  Tzu-Ching CHANG ,  Chih-Chieh YU

Inventor： Jui-Yu LIN ,  Chwung-Shan KOU ,  Teng-Wei WANG ,  Yan-Ru PAN ,  Tzu-Ching CHANG ,  Chih-Chieh YU

IPC: H05H1/00

CPC classification number: H05H1/46 ,  H01J37/3222

Abstract: In the present invention, a plasma generating device is provided for generating a plasma with a uniform intensity. The plasma generating device comprises at least a first antenna to transmit the first electromagnetic wave, at least a second antenna to transmit the second electromagnetic wave, and an insulator defining an isolated space for containing therein the first antenna and the second antenna, wherein the first antenna has an opposite orientation with respect to the second antenna, so that the first electromagnetic wave and the second electromagnetic wave are transmitted in opposite directions. The first and the second electromagnetic waves can be coupled with each other to produce a uniform standing wave pattern. Consequently, a large size uniform plasma can be generated.

Abstract translation: 在本发明中，提供等离子体产生装置，用于产生具有均匀强度的等离子体。 等离子体产生装置至少包括用于传输第一电磁波的第一天线，至少第二天线以发射第二电磁波，以及限定用于容纳第一天线和第二天线的隔离空间的绝缘体，其中第一天线 天线相对于第二天线具有相反的方位，使得第一电磁波和第二电磁波在相反的方向上传输。 第一和第二电磁波可以彼此耦合以产生均匀的驻波图案。 因此，可以产生大尺寸均匀的等离子体。

公开(公告)号：US5310924A

公开(公告)日：1994-05-10

申请号：US55438

申请日：1993-04-30

Applicant: Patti A. Parziale ,  Tzu-Ching Chang ,  Lynn E. Applegate

Inventor： Patti A. Parziale ,  Tzu-Ching Chang ,  Lynn E. Applegate

IPC: C07D417/04

CPC classification number: C07D417/04

Abstract: Process for preparing 2-(4-thiazolyl)-1H-benzimidazole (generic name: thiabendazole) by the acid-catalyzed condensation of o-phenyldiamine and 4-cyanothiazole in solution in water or mixtures of water with miscible co-solvents (solvents which upon mixing with water in all proportions form a homogeneous mixture, as well as, other partially miscible solvents which upon mixing with water in some proportions form a homogeneous mixture under the reaction conditions of the process of this invention).

Abstract translation: 通过邻 - 苯基二胺和4-氰基噻唑在水溶液中或水与混溶性共溶剂的酸催化缩合制备2-（4-噻唑基）-1H-苯并咪唑（通用名：噻苯达唑）的方法 在与本发明方法的反应条件下形成均匀的混合物时，与水以一定比例混合形成均匀的混合物，以及其它部分混溶的溶剂。

公开(公告)号：US4489209A

公开(公告)日：1984-12-18

申请号：US331894

申请日：1981-12-17

Applicant: Tzu-Ching Chang

Inventor： Tzu-Ching Chang

IPC: C07C85/26

CPC classification number: C07C209/86

Abstract: A process of separating amines having different basicity constants is disclosed. The more reactive amine is converted to a salt which is extracted with water in a multiple stage countercurrent extractor. The salt form of the amine is converted to the free amine. In a preferred aspect of the invention the amine salt is an amine sulfite which can be converted to free amine and sulfur dioxide. The sulfur dioxide can be reused to generate more amine sulfite. The more reactive amine is then separated from the water and part of it recovered. The remainder of the more reactive amine is recycled to the countercurrent extractor. The less reactive amine is removed from the countercurrent extractor in the free amine state as an organic phase along with any organic solvent that is used. Part of the less reactive amine is recovered from the system while the remainder is converted to a salt and an aqueous solution thereof recycled to the countercurrent extractor.

Abstract translation: 公开了分离具有不同碱度常数的胺的方法。 将更多的反应性胺转化成盐，其在多级逆流萃取器中用水萃取。 将胺的盐形式转化为游离胺。 在本发明的优选方面，胺盐是可以转化为游离胺和二氧化硫的亚硫酸胺。 二氧化硫可以重复使用以产生更多的亚硫酸胺。 然后将更多的反应性胺从水中分离出来，其一部分回收。 剩余的更多的反应性胺被再循环到逆流萃取器中。 作为有机相的游离胺状态的逆流提取器中除去反应活性较少的胺以及使用的任何有机溶剂。 从系统中回收部分较少活性的胺，而其余部分转化为盐并将其水溶液再循环至逆流萃取器。

公开(公告)号：US4409386A

公开(公告)日：1983-10-11

申请号：US405757

申请日：1982-08-06

Applicant: Tzu-Ching Chang

Inventor： Tzu-Ching Chang

IPC: C07C85/26

CPC classification number: C07C209/84

Abstract: An acid extraction process for separating 3,4-dichloroaniline from 2,3-dichloroaniline and 2,5-dichloroaniline is disclosed. The process involves selectively forming 3,4-dichloroaniline hydrochloride, since it has a higher basicity than the other dichloroaniline isomers, in a multiple stage extraction unit. An aqueous solution of 3,4-dichloroaniline hydrochloride is removed from the multiple stage extraction unit and neutralized with a base to form an immiscible mixture of an aqueous salt solution and 3,4-dichloroaniline which are separated by decantation.

Abstract translation: 公开了一种从2,3-二氯苯胺和2,5-二氯苯胺中分离3,4-二氯苯胺的酸提取方法。 该方法包括选择性地形成3,4-二氯苯胺盐酸盐，因为它在多级萃取装置中具有比其它二氯苯胺异构体更高的碱度。 从多级萃取单元中除去3,4-二氯苯胺盐酸盐的水溶液，并用碱中和以形成通过倾析分离的盐水溶液和3,4-二氯苯胺的不混溶混合物。

公开(公告)号：US08766613B2

公开(公告)日：2014-07-01

申请号：US13744037

申请日：2013-01-17

Applicant: Chan-Hong Chern ,  Tzu-Ching Chang ,  Min-Shueh Yuan ,  Yuwen Swei ,  Chih-Chang Lin ,  Chiang Pu ,  Ming-Chieh Huang ,  Kuoyuan Hsu

Inventor： Chan-Hong Chern ,  Tzu-Ching Chang ,  Min-Shueh Yuan ,  Yuwen Swei ,  Chih-Chang Lin ,  Chiang Pu ,  Ming-Chieh Huang ,  Kuoyuan Hsu

IPC: G05F1/44

CPC classification number: H02M3/158 ,  G05F1/44 ,  G05F1/56

Abstract: A method of operating a voltage regulator circuit includes generating a control signal by an amplifier of the voltage regulator circuit. The control signal is generated based on a reference signal at an inverting input of the amplifier and a feedback signal at a non-inverting input of the amplifier. A driving current flowing toward an output node of the voltage regulator circuit is generated by a driver responsive to the control signal, and the driver is coupled between a first power node and the output node. The feedback signal is generated responsive to a voltage level at the output node. A transistor, coupled between the output node and a second power node, is caused to operate in saturation mode during a period while the voltage regulator circuit is operating.

Abstract translation: 一种操作电压调节器电路的方法包括由稳压器电路的放大器产生控制信号。 控制信号基于放大器的反相输入处的参考信号和放大器的非反相输入端的反馈信号而产生。 通过响应于控制信号的驱动器产生朝向电压调节器电路的输出节点流动的驱动电流，并且驱动器耦合在第一功率节点和输出节点之间。 响应于输出节点处的电压电平产生反馈信号。 耦合在输出节点和第二功率节点之间的晶体管在电压调节器电路工作期间的一段时间内使其工作在饱和模式。