公开(公告)号：US07715726B2

公开(公告)日：2010-05-11

申请号：US11751389

申请日：2007-05-21

Applicant: Lei Chen ,  Fun Kok Chow

Inventor： Lei Chen ,  Fun Kok Chow

IPC: H04B10/00

CPC classification number: H03M1/0827 ,  H03M1/12 ,  H03M3/368 ,  H03M3/458

Abstract: An optically isolated circuit device includes a first opto-isolator circuit that is driven by a first clock signal, and the output of the first opto-isolator circuit is used to drive a phase-locked loop (PLL) that is configured to synthesize a second clock signal having a frequency that is a multiple of the first clock signal frequency. The second clock signal is used as an input to a suitable clocked circuit of a type that benefits from optical isolation, such as an analog-to-digital converter (ADC).

Abstract translation: 光隔离电路装置包括由第一时钟信号驱动的第一光隔离器电路，并且第一光隔离器电路的输出用于驱动锁相环（PLL），其被配置为合成第二时钟信号 时钟信号的频率是第一时钟信号频率的倍数。 第二个时钟信号用作有益于光隔离类型（例如模数转换器（ADC））的合适时钟电路的输入。

公开(公告)号：US20090206960A1

公开(公告)日：2009-08-20

申请号：US12397254

申请日：2009-03-03

Applicant: Gek Yong Ng ,  Fun Kok Chow ,  Kah Weng Lee

Inventor： Gek Yong Ng ,  Fun Kok Chow ,  Kah Weng Lee

IPC: H01P1/00 ,  H05K3/00

CPC classification number: H04L5/14 ,  H01L23/48 ,  H01L23/5223 ,  H01L23/642 ,  H01L24/48 ,  H01L27/0248 ,  H01L28/60 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/484 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01019 ,  H01L2924/01023 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01074 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/12043 ,  H01L2924/14 ,  H01L2924/19041 ,  H01L2924/3011 ,  H04L25/0266 ,  Y10T29/49117 ,  H01L2224/45099 ,  H01L2924/00 ,  H01L2224/85399 ,  H01L2224/05599

Abstract: According to one embodiment, there is provided a high voltage isolation dual capacitor communication system comprising communication drive and sense electrodes and corresponding first and second capacitors that are formed in two separate devices. The two devices are electrically connected in series to provide a single galvanicly-isolated communication system that exhibits high breakdown voltage performance in combination with good signal coupling. The system effects communications between drive and receive circuits through the first and second capacitors, and in a preferred embodiment is capable of effecting relatively high-speed digital communications. The system may be formed in a small package using, by way of example, CMOS or other semiconductor fabrication and packaging processes.

Abstract translation: 根据一个实施例，提供了一种高电压隔离双电容器通信系统，其包括形成在两个分开的装置中的通信驱动和感测电极以及对应的第一和第二电容器。 两个器件串联电连接以提供单个电隔离通信系统，其具有高的击穿电压性能以及良好的信号耦合。 该系统通过第一和第二电容器实现驱动和接收电路之间的通信，并且在优选实施例中能够实现相对高速的数字通信。 该系统可以使用例如CMOS或其他半导体制造和封装工艺以小封装形成。

公开(公告)号：US07501898B2

公开(公告)日：2009-03-10

申请号：US11271074

申请日：2005-11-10

Applicant: Fun Kok Chow

Inventor： Fun Kok Chow

IPC: H03F3/08 ,  H03K19/0175

CPC classification number: H03F3/087 ,  H03F1/08 ,  H03F2200/78 ,  H03F2203/45136

Abstract: In one embodiment, apparatus is provided with current optimization logic, a programmable current source for generating a reference current threshold, and current programming logic. In response to a plurality of input pulses received by a first TIA, the current optimization logic produces a series of digitized current values in response to i) a signal correlated to an output of the first TIA, to ii) a reference signal to which the output of the first TIA is compared. The current programming logic i) programs the programmable current source using ones of the series of digitized current values, until a predetermined condition is met, and then ii) locks the programmable current source to a most recent one of the digitized current values. In response to the reference current threshold, a second TIA produces the reference signal.

Abstract translation: 在一个实施例中，设备具有当前优化逻辑，用于产生参考电流阈值的可编程电流源和当前编程逻辑。 响应于由第一TIA接收的多个输入脉冲，当前优化逻辑响应于i）与第一TIA的输出相关的信号而产生一系列数字化的电流值，ii）参考信号， 比较第一TIA的输出。 当前编程逻辑i）使用一系列数字化电流值中的一个数字化电流值来编程可编程电流源，直到满足预定条件，然后ii）将可编程电流源锁定到数字化电流值中的最近一个。 响应于参考电流阈值，第二TIA产生参考信号。

公开(公告)号：US07876071B2

公开(公告)日：2011-01-25

申请号：US11763522

申请日：2007-06-15

Applicant: Lei Chen ,  Fun Kok Chow ,  Kok Keong Richard Lum ,  Bin Zhang

Inventor： Lei Chen ,  Fun Kok Chow ,  Kok Keong Richard Lum ,  Bin Zhang

IPC: H02J7/00 ,  H01P3/08 ,  H04B10/06 ,  G01N27/416

CPC classification number: H01M10/48 ,  G01R19/0084 ,  H01M10/425

Abstract: An integrated circuit battery sensor and system thereof are provided. The battery sensor includes a voltage sensor configured to sample a voyage of a battery and a buffer in electrical communication with the voltage sensor and configured for scaling the sampled battery voltage and outputting a voltage signal proportional to the sampled battery voltage; wherein the voltage sensor is further configured for isolating the buffer from the battery. The voltage sensor includes a first capacitor coupled to a positive potential terminal of the battery and a second capacitor coupled to a negative potential terminal of the battery. The battery sensor includes a first die including a first and second input terminal configured for coupling to the positive and negative potential terminals of the battery; and a second die including the voltage sensor, wherein the first and second die are electrically isolated from each other.

Abstract translation: 提供集成电路电池传感器及其系统。 电池传感器包括电压传感器，其被配置为对电池的航行进行采样，并且缓冲器与电压传感器电连通并且被配置为缩放所采样的电池电压并输出与采样的电池电压成比例的电压信号; 其中所述电压传感器还被配置为将所述缓冲器与所述电池隔离。 电压传感器包括耦合到电池的正电位端子的第一电容器和耦合到电池的负电位端子的第二电容器。 电池传感器包括：第一管芯，其包括被配置为耦合到电池的正极和负极端子的第一和第二输入端子; 以及包括所述电压传感器的第二管芯，其中所述第一管芯和所述第二管芯彼此电隔离。

公开(公告)号：US07741896B2

公开(公告)日：2010-06-22

申请号：US12163275

申请日：2008-06-27

Applicant: Fun Kok Chow ,  Gek Yong Ng ,  Richard Kok Keong Lum

Inventor： Fun Kok Chow ,  Gek Yong Ng ,  Richard Kok Keong Lum

IPC: H03K17/687

CPC classification number: H04L25/0266 ,  H01L23/48 ,  H01L23/5223 ,  H01L23/642 ,  H01L27/0248 ,  H01L28/40 ,  H01L28/60 ,  H01L2224/48137 ,  H01L2224/49175 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/00

Abstract: According to one embodiment, there is provided a high voltage drive circuit comprising drive and sense electrodes formed substantially in a single plane. The device effects signal transfer between drive and receive circuits through the drive and sense electrodes by capacitive means, and permits high voltage devices, such as IGBTs, to be driven thereby without the use of high voltage transistors, thereby eliminating the need to use expensive fabrication processes such as SOI when manufacturing high voltage gate drive circuits and ICs. The device may be formed in a small package using, by way of example, using CMOS or other conventional low-cost semiconductor fabrication and packaging processes.

Abstract translation: 根据一个实施例，提供了一种高压驱动电路，其包括基本上在单个平面中形成的驱动和感测电极。 该器件通过电容方式通过驱动和感测电极来影响驱动和接收电路之间的信号传输，并且允许诸如IGBT之类的高电压器件由此驱动，而不需要使用高压晶体管，从而无需使用昂贵的制造 制造高压栅极驱动电路和IC时的SOI等工艺。 例如，可以使用CMOS或其它常规的低成本半导体制造和封装工艺，将器件形成为小封装。

公开(公告)号：US20080309317A1

公开(公告)日：2008-12-18

申请号：US11763522

申请日：2007-06-15

Applicant: Lei Chen ,  Fun Kok Chow ,  Kok Keong Richard Lum ,  Bin Zhang

Inventor： Lei Chen ,  Fun Kok Chow ,  Kok Keong Richard Lum ,  Bin Zhang

IPC: G01R19/00

CPC classification number: H01M10/48 ,  G01R19/0084 ,  H01M10/425

Abstract: An integrated circuit battery sensor and system thereof are provided. The battery sensor includes a voltage sensor configured to sample a voyage of a battery and a buffer in electrical communication with the voltage sensor and configured for scaling the sampled battery voltage and outputting a voltage signal proportional to the sampled battery voltage; wherein the voltage sensor is further configured for isolating the buffer from the battery. The voltage sensor includes a first capacitor coupled to a positive potential terminal of the battery and a second capacitor coupled to a negative potential terminal of the battery. The battery sensor includes a first die including a first and second input terminal configured for coupling to the positive and negative potential terminals of the battery; and a second die including the voltage sensor, wherein the first and second die are electrically isolated from each other.

Abstract translation: 提供集成电路电池传感器及其系统。 电池传感器包括电压传感器，其被配置为对电池的航行进行采样，并且缓冲器与电压传感器电连通并且被配置为缩放所采样的电池电压并输出与采样的电池电压成比例的电压信号; 其中所述电压传感器还被配置为将所述缓冲器与所述电池隔离。 电压传感器包括耦合到电池的正电位端子的第一电容器和耦合到电池的负电位端子的第二电容器。 电池传感器包括：第一管芯，其包括被配置为耦合到电池的正极和负极端子的第一和第二输入端子; 以及包括所述电压传感器的第二管芯，其中所述第一管芯和所述第二管芯彼此电隔离。