公开(公告)号：US07088180B2

公开(公告)日：2006-08-08

申请号：US11030026

申请日：2005-01-05

Applicant: Yi-Bin Lee ,  Peng-Un Su

Inventor： Yi-Bin Lee ,  Peng-Un Su

IPC: H03F3/45

CPC classification number: H03G1/0088 ,  H03F3/45197 ,  H03F3/72 ,  H03F2203/45652 ,  H03F2203/45726

Abstract: A programmable gain current amplifier is provided, including a transistor pair, a plurality of differential pairs, and a control device. The transistor pair receives an input current. Each differential pairs connecting with each other in parallel is connected to the transistor pair to form a differential current mirror for amplifying the input current. The control device adjusts the output polarity of the current mirror, thereby obtaining a predetermined gain between the output of the current mirror and the input current. Therefore, amplification of the input current at a programmable gain is realized.

Abstract translation: 提供了可编程增益电流放大器，包括晶体管对，多个差分对以及控制装置。 晶体管对接收输入电流。 并联连接的每个差分对连接到晶体管对，以形成用于放大输入电流的差分电流镜。 控制装置调节电流镜的输出极性，从而在电流镜的输出和输入电流之间获得预定的增益。 因此，实现了可编程增益下的输入电流的放大。

公开(公告)号：US20060103463A1

公开(公告)日：2006-05-18

申请号：US11030026

申请日：2005-01-05

Applicant: Yi-Bin Lee ,  Peng-Un Su

Inventor： Yi-Bin Lee ,  Peng-Un Su

IPC: H03F3/45

CPC classification number: H03G1/0088 ,  H03F3/45197 ,  H03F3/72 ,  H03F2203/45652 ,  H03F2203/45726

Abstract: A programmable gain current amplifier is provided, including a transistor pair, a plurality of differential pairs, and a control device. The transistor pair receives an input current. Each differential pairs connecting with each other in parallel is connected to the transistor pair to form a differential current mirror for amplifying the input current. The control device adjusts the output polarity of the current mirror, thereby obtaining a predetermined gain between the output of the current mirror and the input current. Therefore, amplification of the input current at a programmable gain is realized.

公开(公告)号：US20060104398A1

公开(公告)日：2006-05-18

申请号：US11024434

申请日：2004-12-30

Applicant: Peng-Un Su ,  Chih-Hung Chen ,  Horng-Yuan Shih

Inventor： Peng-Un Su ,  Chih-Hung Chen ,  Horng-Yuan Shih

IPC: H03L7/06 ,  H03D3/24

CPC classification number: H03L7/183 ,  H03L7/10

Abstract: A frequency synthesizer with automatic calibration includes a voltage-controlled oscillator, which has several working bands for receiving a coarse-tuned signal and a fine-tuned signal and generating an output signal in the working band of the coarse-tuned signals; preliminary frequency divider unit, which receives the output signal and generates an intermediate signal by frequency dividing; a feedback frequency divider unit, which receives the intermediate signal and generates a feedback signal by frequency dividing; an automatic calibration unit, which receives the input signal and the intermediate signal to generate a coarse-tuned signal; a phase-frequency comparator, which compares the input signal with the feedback signal and generates an error signal according to the frequency and phase differences between the input signal and the feedback signal; and a low-pass filter, which filters the error signal and generates a fine-tuned signal.

公开(公告)号：US07756266B2

公开(公告)日：2010-07-13

申请号：US11266414

申请日：2005-11-03

Applicant: Peng-Un Su ,  Horng-Yuan Shih ,  Ming-Ching Kuo

Inventor： Peng-Un Su ,  Horng-Yuan Shih ,  Ming-Ching Kuo

IPC: H04M1/00 ,  H04M9/00

CPC classification number: H03K17/223 ,  H03K17/161 ,  H03K2217/0036

Abstract: A device for voltage-noise rejection and fast start-up is provided. It comprises a low-pass filter connected to a voltage source, a voltage-controlled switch connected in parallel with the low-pass filter, and an auxiliary start-up element connected to a DC-only voltage output. By using a transistor operating in the triode region and a capacitor with suitable capacitance, it is suitable for integration to form a low-frequency low-pass pole to suppress the noise in the reference current. The auxiliary start-up element overcomes the large turn on time caused by the low frequency low-pass pole. As there is no static current during normal operation, the power consumption for the device is low.

Abstract translation: 提供了一种用于电压噪声抑制和快速启动的设备。 它包括连接到电压源的低通滤波器，与低通滤波器并联连接的压控开关，以及连接到仅DC电压输出的辅助启动元件。 通过使用在三极管区域工作的晶体管和具有合适电容的电容器，适合集成形成低频低通极，以抑制参考电流中的噪声。 辅助启动元件克服了低频低通极引起的大的导通时间。 由于在正常运行期间没有静态电流，器件的功耗较低。

公开(公告)号：US20060158271A1

公开(公告)日：2006-07-20

申请号：US11183901

申请日：2005-07-19

Applicant: Kai-Cheung Juang ,  Horng-Yuan Shih ,  Peng-Un Su

Inventor： Kai-Cheung Juang ,  Horng-Yuan Shih ,  Peng-Un Su

IPC: H03B1/00

CPC classification number: H03B5/04

Abstract: A voltage controlled oscillator with anti supply voltage variation and/or process variation includes an oscillation circuit for outputting an oscillatory signal; a current source coupled to the oscillation circuit for providing an input current to the oscillation circuit; and a variation compensation circuit for compensating the variations generated by the supply voltage and process. The variation compensation circuit includes a peak detector for generating a peak voltage proportional to the amplitude of the oscillatory signal; a compensating voltage generator for generating a reference voltage according to the process variation so that the oscillation circuit achieves the same working conditions under the process variation; and a comparator for comparing the peak voltage and the reference voltage to generate a control voltage. When the variation compensation circuit includes an amplifier, the supply voltage can be compensated.

Abstract translation: 具有抗电压变化和/或过程变化的压控振荡器包括用于输出振荡信号的振荡电路; 耦合到振荡电路的电流源，用于向振荡电路提供输入电流; 以及用于补偿由电源电压和处理产生的变化的变化补偿电路。 该变化补偿电路包括：峰值检测器，用于产生与振荡信号幅度成比例的峰值电压; 补偿电压发生器，用于根据工艺变化产生参考电压，使得振荡电路在工艺变化下达到相同的工作条件; 以及用于比较峰值电压和参考电压以产生控制电压的比较器。 当变差补偿电路包括放大器时，可以补偿电源电压。

公开(公告)号：US07583773B2

公开(公告)日：2009-09-01

申请号：US11024434

申请日：2004-12-30

Applicant: Peng-Un Su ,  Chih-Hung Chen ,  Horng-Yuan Shih

Inventor： Peng-Un Su ,  Chih-Hung Chen ,  Horng-Yuan Shih

IPC: H03D3/24

CPC classification number: H03L7/183 ,  H03L7/10

Abstract: A frequency synthesizer with automatic calibration includes a voltage-controlled oscillator, which has several working bands for receiving a coarse-tuned signal and a fine-tuned signal and generating an output signal in the working band of the coarse-tuned signals; preliminary frequency divider unit, which receives the output signal and generates an intermediate signal by frequency dividing; a feedback frequency divider unit, which receives the intermediate signal and generates a feedback signal by frequency dividing; an automatic calibration unit, which receives the input signal and the intermediate signal to generate a coarse-tuned signal; a phase-frequency comparator, which compares the input signal with the feedback signal and generates an error signal according to the frequency and phase differences between the input signal and the feedback signal; and a low-pass filter, which filters the error signal and generates a fine-tuned signal.

Abstract translation: 具有自动校准的频率合成器包括压控振荡器，其具有几个工作频带，用于接收粗调谐信号和微调信号，并在粗调谐信号的工作频带中产生输出信号; 初步分频器单元，其接收输出信号并通过分频产生中间信号; 反馈分频器单元，其接收中间信号并通过分频产生反馈信号; 自动校准单元，其接收输入信号和中间信号以产生粗调谐信号; 相位比较器，其将输入信号与反馈信号进行比较，并根据输入信号和反馈信号之间的频率和相位差产生误差信号; 以及低通滤波器，其对误差信号进行滤波并产生微调信号。

公开(公告)号：US20070115061A1

公开(公告)日：2007-05-24

申请号：US11266414

申请日：2005-11-03

Applicant: Peng-Un Su ,  Horng-Yuan Shih ,  Ming-Ching Kuo

Inventor： Peng-Un Su ,  Horng-Yuan Shih ,  Ming-Ching Kuo

IPC: H03G3/00

CPC classification number: H03K17/223 ,  H03K17/161 ,  H03K2217/0036

Abstract: A device for voltage-noise rejection and fast start-up is provided. It comprises a low-pass filter connected to a voltage source, a voltage-controlled switch connected in parallel with the low-pass filter, and an auxiliary start-up element connected to a DC-only voltage output. By using a transistor operating in the triode region and a capacitor with suitable capacitance, it is suitable for integration to form a low-frequency low-pass pole to suppress the noise in the reference current. The auxiliary start-up element overcomes the large turn on time caused by the low frequency low-pass pole. As there is no static current during normal operation, the power consumption for the device is low.

Abstract translation: 提供了一种用于电压噪声抑制和快速启动的设备。 它包括连接到电压源的低通滤波器，与低通滤波器并联连接的压控开关，以及连接到仅DC电压输出的辅助启动元件。 通过使用在三极管区域工作的晶体管和具有合适电容的电容器，适合集成形成低频低通极，以抑制参考电流中的噪声。 辅助启动元件克服了低频低通极引起的大的导通时间。 由于在正常运行期间没有静态电流，器件的功耗较低。

公开(公告)号：US07449972B2

公开(公告)日：2008-11-11

申请号：US11183901

申请日：2005-07-19

Applicant: Kai-Cheung Juang ,  Horng-Yuan Shih ,  Peng-Un Su

Inventor： Kai-Cheung Juang ,  Horng-Yuan Shih ,  Peng-Un Su

IPC: H03L5/00

CPC classification number: H03B5/04

Abstract: A voltage controlled oscillator with anti supply voltage variation and/or process variation includes an oscillation circuit for outputting an oscillatory signal; a current source coupled to the oscillation circuit for providing an input current to the oscillation circuit; and a variation compensation circuit for compensating the variations generated by the supply voltage and process. The variation compensation circuit includes a peak detector for generating a peak voltage proportional to the amplitude of the oscillatory signal; a compensating voltage generator for generating a reference voltage according to the process variation so that the oscillation circuit achieves the same working conditions under the process variation; and a comparator for comparing the peak voltage and the reference voltage to generate a control voltage. When the variation compensation circuit includes an amplifier, the supply voltage can be compensated.

Abstract translation: 具有抗电压变化和/或过程变化的压控振荡器包括用于输出振荡信号的振荡电路; 耦合到振荡电路的电流源，用于向振荡电路提供输入电流; 以及用于补偿由电源电压和处理产生的变化的变化补偿电路。 该变化补偿电路包括：峰值检测器，用于产生与振荡信号幅度成比例的峰值电压; 补偿电压发生器，用于根据工艺变化产生参考电压，使得振荡电路在工艺变化下达到相同的工作条件; 以及用于比较峰值电压和参考电压以产生控制电压的比较器。 当变差补偿电路包括放大器时，可以补偿电源电压。