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1. 发明申请

US20150091646A1 CURRENT MODE CLASS AB LOW-NOISE AMPLIFIER AND METHOD OF ACTIVE CABLE TERMINATION 审中-公开
标题翻译：电流模式等级AB低噪声放大器和有源电缆终止方法
公开(公告)号：US20150091646A1
公开(公告)日：2015-04-02
申请号：US14042361
申请日：2013-09-30
申请人： Supertex, Inc.
发明人： Lazar Shifrin
IPC分类号： H03F3/21 , H03F3/26 , H03F3/45 , H03F3/193
CPC分类号： H03F3/21 , H03F3/193 , H03F3/3028 , H03F3/45183 , H03F2203/30105 , H03F2203/30138 , H03F2203/45112
摘要： This invention relates to medical ultrasonic imaging systems and, in particular, phased array imaging systems operating in different scan formats and imaging modalities. More specifically, the invention relates to the front-end processing of ultrasonic echoes.
摘要翻译：本发明涉及医疗超声成像系统，特别涉及以不同扫描格式和成像方式操作的相控阵成像系统。更具体地，本发明涉及超声回波的前端处理。

2. 发明申请

US20150022176A1 Power Converter with inductance invariance 有权
标题翻译：电感转换器具有电感不变性
公开(公告)号：US20150022176A1
公开(公告)日：2015-01-22
申请号：US13946952
申请日：2013-07-19
申请人： SUPERTEX, INC.
发明人： James T. Walker
IPC分类号： H02M3/156
CPC分类号： H02M1/4225 , H05B33/0818 , Y02B70/126
摘要： An improved power converter is disclosed.
摘要翻译：公开了一种改进的功率转换器。

3. 发明申请

US20140376285A1 Auxiliary Power Supplies 有权
标题翻译：辅助电源
公开(公告)号：US20140376285A1
公开(公告)日：2014-12-25
申请号：US13924302
申请日：2013-06-21
申请人： Supertex, Inc.
发明人： Marc Tan , Alexander Mednik , Simon Krugly , Wilson Wai-Sum Chan
IPC分类号： H02M1/08 , H02M1/36
CPC分类号： H02M1/08 , H02M1/36 , H02M3/158 , H02M2001/0006 , H02M2001/0045
摘要： The invention relates to auxiliary power supplies.
摘要翻译：本发明涉及辅助电源。

4. 发明申请

US20140097897A1 OP-AMP Sharing Technique to Remove Memory Effect in Pipelined Circuit 有权
标题翻译： OP-AMP共享技术去除流水线电路中的记忆效应
公开(公告)号：US20140097897A1
公开(公告)日：2014-04-10
申请号：US14025724
申请日：2013-09-12
申请人： Supertex, Inc.
发明人： Louis Hau-Yiu TSUI , Isaac Terasuth Ko
IPC分类号： H03F3/45
CPC分类号： H03F3/45179 , H03F3/005 , H03M1/1225 , H03M1/167 , H03M1/44
摘要： This document describes a new op-amp sharing technique for pipeline ADC without memory effect. The key features of this technique are: the usage of negative impedance converter and scaled replica of the op-amp input device to achieve zero error voltage, which in turns achieve low power dissipation due to the removal of the tradeoff between op-amp sharing and memory effect. With this technique much lower operation of pipeline ADC can be achieved for applications of data communications and image signal processing.
摘要翻译：本文档描述了一种用于无记忆效应的流水线ADC的新型运算放大器共享技术。该技术的主要特点是：使用负阻抗转换器和运算放大器输入设备的缩放复本来实现零误差电压，从而实现低功耗，这是由于消除了运算放大器共享和记忆效应。使用这种技术，可以实现数据通信和图像信号处理应用的管道ADC的低得多的操作。

5. 发明授权

US08648627B1 Programmable ultrasound transmit beamformer integrated circuit and method 有权
标题翻译：可编程超声波发射波束形成器集成电路及方法
公开(公告)号：US08648627B1
公开(公告)日：2014-02-11
申请号：US13587551
申请日：2012-08-16
申请人： Ching Chu
发明人： Ching Chu
IPC分类号： H03B21/00
CPC分类号： G10K11/346
摘要： An electrical waveform generating circuit has a programmable current source-driver. A digital switched current source is coupled to the programmable current source-driver and controlled by waveforms stored in the programmable current source-driver. A plurality of MOSFETs is coupled to the programmable current source driver. A first coupled inductor is connected to the plurality of high voltage MOSFETs. A transducer is coupled to the first coupled inductor.
摘要翻译：电波形发生电路具有可编程电流源驱动器。数字开关电流源耦合到可编程电流源驱动器并由存储在可编程电流源驱动器中的波形控制。多个MOSFET耦合到可编程电流源驱动器。第一耦合电感器连接到多个高压MOSFET。传感器耦合到第一耦合电感器。

6. 发明申请

US20140009128A1 Adjustable Shunt Regulator Circuit 有权
标题翻译：可调并联稳压电路
公开(公告)号：US20140009128A1
公开(公告)日：2014-01-09
申请号：US14018281
申请日：2013-09-04
申请人： Supertex, Inc.
发明人： Tony Yuan Yen MAI , Isaac Terasuth Ko
IPC分类号： G05F1/613
CPC分类号： G05F1/613 , G05F3/30
摘要： An adjustable shunt regulator circuit has two current paths in parallel, with each current path having a bipolar transistor therein with the bases of the bipolar transistors of the two current paths connected in common. One of the current paths has a high impedance node. A MOS transistor has a gate connected to the high impedance node, and a source and a drain. A resistor divide circuit is connected in parallel to the source and drain of the MOS transistor and provides the output of the regulator circuit. The resistor divide circuit has a first resistor connected in series with a second resistor at a first node. A feedback connects the first node to the bases of the bipolar transistors connected in common of the two current paths.
摘要翻译：可调并联调节器电路具有并联的两个电流路径，每个电流路径具有双极晶体管，其中两个电流路径的双极晶体管的基极共同连接。其中一条电流路径具有高阻抗节点。 MOS晶体管具有连接到高阻抗节点的栅极以及源极和漏极。电阻分压电路与MOS晶体管的源极和漏极并联连接，并提供稳压电路的输出。电阻分压电路具有与第一节点处的第二电阻器串联连接的第一电阻器。反馈将第一节点连接到两个电流路径共同连接的双极晶体管的基极。

7. 发明授权

US08461777B1 Protection from short cathode condition in LED driver and method therefor 有权
标题翻译： LED驱动器的阴极短路保护及其方法
公开(公告)号：US08461777B1
公开(公告)日：2013-06-11
申请号：US12818859
申请日：2010-06-18
申请人： Alexander Mednik , Rohit Tirumala
发明人： Alexander Mednik , Rohit Tirumala
IPC分类号： H05B37/00
CPC分类号： H05B33/0893 , Y02B20/341
摘要： A Light Emitting Diode (LED) driver for preventing shorting has an LED driver circuit. A protection circuit is coupled to the LED driver to detect a fault condition by monitoring a cathode of an LED string of the LED driver, an LED current sense voltage of the LED driver, an LED current feedback error voltage of the LED driver circuit, and a state of a dimming switch of the LED driver.
摘要翻译：用于防止短路的发光二极管（LED）驱动器具有LED驱动电路。保护电路与LED驱动器耦合，通过监视LED驱动器的LED串的阴极，LED驱动器的LED电流检测电压，LED驱动电路的LED电流反馈误差电压以及 LED驱动器的调光开关的状态。

8. 发明授权

US08154898B2 Current driven bipolar high voltage driver for capacitive loads 有权
标题翻译：用于电容负载的电流驱动双极型高压驱动器
公开(公告)号：US08154898B2
公开(公告)日：2012-04-10
申请号：US11762901
申请日：2007-06-14
申请人： James T. Walker
发明人： James T. Walker
IPC分类号： H02M7/5387 , H02M3/18
CPC分类号： H05B33/08 , H02M3/073
摘要： A circuit for generating a high voltage alternating current to drive a load has a current source having a first terminal and a second terminal. The circuit further has an output terminal and a circuit ground terminal. A first switch will conduct between the first terminal of the current source and the circuit ground terminal when the first switch is closed. A second switch will conduct between the first terminal of the current source and the output terminal when the second switch is closed. A third switch will conduct between the second terminal of the current source and the circuit ground terminal when the third switch is closed. A fourth switch will conduct between the second terminal of the current source and the output terminal when the fourth switch is closed. A load is coupled to the output terminal and the circuit ground terminal.
摘要翻译：用于产生用于驱动负载的高压交流电的电路具有具有第一端子和第二端子的电流源。电路还具有输出端子和电路接地端子。当第一开关闭合时，第一开关将在电流源的第一端和电路接地端之间导通。当第二开关闭合时，第二开关将在电流源的第一端子和输出端子之间导通。当第三开关闭合时，第三开关将在电流源的第二端子与电路接地端子之间导通。当第四开关闭合时，第四开关将在电流源的第二端子与输出端子之间导通。负载耦合到输出端子和电路接地端子。

9. 发明授权

US07986178B2 Pulse width modulation driver for electroactive lens 有权
标题翻译：电动透镜的脉宽调制驱动器
公开(公告)号：US07986178B2
公开(公告)日：2011-07-26
申请号：US12331353
申请日：2008-12-09
申请人： Scott Lynch
发明人： Scott Lynch
IPC分类号： H03K3/017
CPC分类号： G02F1/13306 , G02B3/14 , G02F2001/294
摘要： An electroactive lens driver generates a variable root-mean-square drive voltage for controlling an electroactive lens by controlling the duty cycle of a modified square wave.
摘要翻译：电活动透镜驱动器通过控制修改的方波的占空比来产生用于控制电活性透镜的可变均方根驱动电压。

10. 发明授权

US07813048B2 Inductorless electroactive lens driver and system 有权
标题翻译：无电感电动镜头驱动器和系统
公开(公告)号：US07813048B2
公开(公告)日：2010-10-12
申请号：US12260026
申请日：2008-10-28
申请人： Scott Lynch , Jimes Lei
发明人： Scott Lynch , Jimes Lei
IPC分类号： G02B1/06 , G02B3/12 , G03B3/10
CPC分类号： H02M7/48 , G02B3/14 , H02M2001/007
摘要： An electroactive lens driver comprises a voltage generator generating a high alternating current voltage signal for application to an electroactive lens in response to a low direct current voltage signal. The voltage generator does not include an inductor or a transformer.
摘要翻译：电动透镜驱动器包括产生高交流电压信号的电压发生器，用于响应于低直流电压信号而施加到电活性透镜。电压发生器不包括电感器或变压器。

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