公开(公告)号：US20100259311A1

公开(公告)日：2010-10-14

申请号：US12717705

申请日：2010-03-04

申请人： Tien Chun YANG ,  Yuwen SWEI ,  Chih-Chang LIN ,  Chiang PU

发明人： Tien Chun YANG ,  Yuwen SWEI ,  Chih-Chang LIN ,  Chiang PU

IPC分类号： H03L5/00

CPC分类号： H03K19/017509 ,  H03K19/018521 ,  H05K13/00 ,  Y10T29/49117

摘要： A level shifter includes an input end being capable of receiving an input voltage signal. The input voltage signal includes a first state transition from a first voltage state to a second voltage state. An output end can output an output voltage signal having a second state transition from a third voltage state to the second voltage state corresponding to the first state transition of the input voltage signal. A driver stage is coupled between the input end and the output end. The driver stage includes a first transistor and a second transistor. Substantially immediately from a time corresponding to about a mean of voltage levels of the first voltage state and the second voltage state, the second voltage state is substantially free from being applied to a gate of the first transistor so as to substantially turn off the first transistor.

摘要翻译： 电平移位器包括能够接收输入电压信号的输入端。 输入电压信号包括从第一电压状态到第二电压状态的第一状态转变。 输出端可以输出具有从第三电压状态到对应于输入电压信号的第一状态转换的第二电压状态的第二状态转换的输出电压信号。 驱动级连接在输入端和输出端之间。 驱动器级包括第一晶体管和第二晶体管。 基本上从与第一电压状态和第二电压状态的电压电平的平均值相对应的时间基本上立即，第二电压状态基本上没有被施加到第一晶体管的栅极，以便基本上关闭第一晶体管 。

公开(公告)号：US20120032731A1

公开(公告)日：2012-02-09

申请号：US12849503

申请日：2010-08-03

申请人： Ming-Chieh HUANG ,  Chan-Hong CHERN ,  Chih-Chang LIN ,  Tien-Chun YANG ,  Yuwen SWEI

发明人： Ming-Chieh HUANG ,  Chan-Hong CHERN ,  Chih-Chang LIN ,  Tien-Chun YANG ,  Yuwen SWEI

IPC分类号： G05F3/02 ,  H01L25/00

CPC分类号： H02M3/07

摘要： An integrated circuit includes a first PMOS transistor, where its drain is arranged to be coupled to a voltage output, and its source is coupled to the drain of a second PMOS transistor. The source of the second PMOS transistor is arranged to be coupled to a high power supply voltage. The source and drain of a MOS capacitor are coupled to the source of the first PMOS transistor. The drain of an NMOS transistor is coupled to the drain of the first PMOS transistor. The integrated circuit is configured to receive a voltage input to generate the voltage output having a maximum voltage higher than the voltage input. The gate oxide layer thickness of the MOS capacitor is less than that of the first PMOS transistor.

摘要翻译： 集成电路包括第一PMOS晶体管，其中其漏极被布置成耦合到电压输出，并且其源极耦合到第二PMOS晶体管的漏极。 第二PMOS晶体管的源极被布置成耦合到高电源电压。 MOS电容器的源极和漏极耦合到第一PMOS晶体管的源极。 NMOS晶体管的漏极耦合到第一PMOS晶体管的漏极。 集成电路被配置为接收电压输入以产生具有高于电压输入的最大电压的电压输出。 MOS电容器的栅氧化层厚度小于第一PMOS晶体管的栅极氧化层厚度。

公开(公告)号：US20110310690A1

公开(公告)日：2011-12-22

申请号：US12820712

申请日：2010-06-22

申请人： Ming-Chieh HUANG ,  Chan-Hong CHERN ,  Tien Chun YANG ,  Chih-Chang LIN ,  Yuwen SWEI

发明人： Ming-Chieh HUANG ,  Chan-Hong CHERN ,  Tien Chun YANG ,  Chih-Chang LIN ,  Yuwen SWEI

IPC分类号： G11C5/14

CPC分类号： G11C11/4074 ,  G11C5/147

摘要： A voltage regulator includes an output stage electrically coupled with an output end of the voltage regulator. The output stage includes at least one transistor having a bulk and a drain. At least one back-bias circuit is electrically coupled with the bulk of the at least one transistor. The at least one back-bias circuit is configured to provide a bulk voltage, such that the bulk and the drain of the at least one transistor are reverse biased during a standby mode of a memory array that is electrically coupled with the voltage regulator.

摘要翻译： 电压调节器包括与电压调节器的输出端电耦合的输出级。 输出级包括具有体积和漏极的至少一个晶体管。 至少一个背偏置电路与所述至少一个晶体管的主体电耦合。 至少一个背偏置电路被配置为提供体电压，使得在与电压调节器电耦合的存储器阵列的待机模式期间，至少一个晶体管的体积和漏极被反向偏置。

公开(公告)号：US20130127433A1

公开(公告)日：2013-05-23

申请号：US13744037

申请日：2013-01-17

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

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

IPC分类号： G05F1/44

CPC分类号： H02M3/158 ,  G05F1/44 ,  G05F1/56

摘要： 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.

摘要翻译： 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：US20130099767A1

公开(公告)日：2013-04-25

申请号：US13278742

申请日：2011-10-21

申请人： Ming-Chieh HUANG ,  Tao Wen CHUNG ,  Chan-Hong CHERN ,  Chih-Chang LIN ,  Yuwen SWEI ,  Chiang PU

发明人： Ming-Chieh HUANG ,  Tao Wen CHUNG ,  Chan-Hong CHERN ,  Chih-Chang LIN ,  Yuwen SWEI ,  Chiang PU

IPC分类号： G05F3/02

CPC分类号： H03H11/44 ,  H01S5/0427 ,  H04B10/504

摘要： A driver includes a first driver stage having at least one input node and at least one first output node. The first driver stage includes a T-coil structure that is disposed adjacent to the at least one first output node. The T-coil structure includes a first set of inductors each being operable to provide a first inductance. A second set of inductors are electrically coupled with the first set of inductors in a parallel fashion. The second set of inductors each are operable to provide a second inductance. A second driver stage is electrically coupled with the first driver stage.

摘要翻译： 驱动器包括具有至少一个输入节点和至少一个第一输出节点的第一驱动器级。 第一驱动级包括邻近于至少一个第一输出节点设置的T型线圈结构。 T型线圈结构包括第一组电感器，每个电感器可操作以提供第一电感。 第二组电感器以并行方式与第一组电感器电耦合。 第二组电感器可操作以提供第二电感。 第二驱动级与第一驱动器级电耦合。

公开(公告)号：US20140266114A1

公开(公告)日：2014-09-18

申请号：US14291426

申请日：2014-05-30

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

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

IPC分类号： H02M3/158

CPC分类号： H02M3/158 ,  G05F1/44 ,  G05F1/56

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G05F1/10

CPC分类号： H02M3/158 ,  G05F1/44 ,  G05F1/56

摘要： 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.

摘要翻译： 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：US20160087817A1

公开(公告)日：2016-03-24

申请号：US14492237

申请日：2014-09-22

申请人： Ming-Chieh HUANG ,  Chan-Hong CHERN ,  Tao Wen CHUNG ,  Yuwen SWEI ,  Chih-Chang LIN ,  Tsung-Ching HUANG

发明人： Ming-Chieh HUANG ,  Chan-Hong CHERN ,  Tao Wen CHUNG ,  Yuwen SWEI ,  Chih-Chang LIN ,  Tsung-Ching HUANG

IPC分类号： H04L25/03 ,  H04L25/06 ,  H04L25/08

CPC分类号： H04L25/03057 ,  H04L25/06 ,  H04L25/08

摘要： A circuit includes a summation circuit for receiving an input data signal and a feedback signal including a previous data bit. The summation circuit is configured to output a conditioned input data signal to a clock and data recovery circuit. A first flip-flop is coupled to an output of the summation circuit and is configured to receive a first set of bits of the conditioned input data signal and a first clock signal having a frequency that is less than a frequency at which the input data signal is received by the first summation circuit. A second flip-flop is coupled to the output of the summation circuit and is configured to receive a second set of bits of the conditioned input data signal and a second clock signal having a frequency that is less than the frequency at which the input data signal is received by the first summation circuit.

摘要翻译： 电路包括用于接收输入数据信号和包括先前数据位的反馈信号的求和电路。 求和电路被配置为将调节的输入数据信号输出到时钟和数据恢复电路。 第一触发器耦合到求和电路的输出，并且被配置为接收经调节的输入数据信号的第一比特组和具有小于输入数据信号的频率的频率的第一时钟信号 由第一求和电路接收。 第二触发器耦合到求和电路的输出，并且被配置为接收经调节的输入数据信号的第二组比特和具有小于输入数据信号的频率的频率的第二时钟信号 由第一求和电路接收。

公开(公告)号：US20140037035A1

公开(公告)日：2014-02-06

申请号：US13564758

申请日：2012-08-02

申请人： Tao Wen CHUNG ,  Chan-Hong CHERN ,  Ming-Chieh HUANG ,  Chih-Chang LIN ,  Yuwen SWEI

发明人： Tao Wen CHUNG ,  Chan-Hong CHERN ,  Ming-Chieh HUANG ,  Chih-Chang LIN ,  Yuwen SWEI

IPC分类号： H03D3/24

CPC分类号： H03K5/135 ,  H03H11/20 ,  H03K2005/00052 ,  H04L7/0029

摘要： A phase interpolator for a CDR circuit produces an output clock having level transitions between the level transitions on two input clocks. The input clocks drive cross-coupled differential amplifiers with an output that can be varied in phase by variable current throttling or steering, according to an input control value. The differential amplifiers produce an output signal with a transition spanning a time between the start of a transition on the leading input clock up to the end of the transition on the lagging input clock. The output clock is linear so long as the transitions on the two input clocks overlap. Active integrators each having an amplifier with a series resistance and capacitive feedback path are coupled to each input to the cross-coupled differential amplifiers, which enhances overlap of the input clock rise times and improves the linearity of the interpolated output signal.

摘要翻译： 用于CDR电路的相位插值器产生具有在两个输入时钟上的电平转换之间的电平转换的输出时钟。 输入时钟驱动交叉耦合差分放大器，输出可根据输入控制值通过可变电流节流或转向相位变化。 差分放大器产生一个输出信号，该输出信号跨越在引导输入时钟之间的转换开始到延迟输入时钟转换结束之间的时间。 输出时钟是线性的，只要两个输入时钟的转换重叠即可。 每个具有串联电阻和电容反馈路径的放大器的积分器耦合到交叉耦合差分放大器的每个输入，这增强了输入时钟上升时间的重叠，并提高了内插输出信号的线性度。

公开(公告)号：US20140015611A1

公开(公告)日：2014-01-16

申请号：US13547101

申请日：2012-07-12

申请人： Tao Wen CHUNG ,  Chan-Hong CHERN ,  Ming-Chieh HUANG ,  Chih-Chang LIN ,  Yuwen SWEI

发明人： Tao Wen CHUNG ,  Chan-Hong CHERN ,  Ming-Chieh HUANG ,  Chih-Chang LIN ,  Yuwen SWEI

IPC分类号： H03F3/04

CPC分类号： G01R31/2621

摘要： A circuit has a first circuit module including a first resistor and first and second transistors coupled in parallel with the first resistor. The first resistor and the first and second transistors are coupled together at a first node. An equivalent resistance across the first circuit module increases as a voltage of the first node is increased from a first voltage to a second voltage, and the equivalent resistance across the first circuit module decreases as the voltage of the first node is increased from the second voltage to a third voltage.

摘要翻译： 电路具有包括第一电阻器和与第一电阻器并联耦合的第一和第二晶体管的第一电路模块。 第一电阻器和第一和第二晶体管在第一节点耦合在一起。 当第一节点的电压从第一电压增加到第二电压时，跨第一电路模块的等效电阻增加，并且第一电路模块上的等效电阻随着第一节点的电压从第二电压增加而减小 到第三电压。