公开(公告)号：US20110109291A1

公开(公告)日：2011-05-12

申请号：US12942228

申请日：2010-11-09

Applicant: CHIEN-FU TANG ,  ISAAC Y. CHEN

Inventor： CHIEN-FU TANG ,  ISAAC Y. CHEN

IPC: G05F1/00

CPC classification number: H02M3/156 ,  H02M2001/0019

Abstract: A non-constant frequency voltage regulator includes a constant-time trigger to trigger a constant on-time or a constant off-time for a pulse width modulation signal, a current generator to provide a first current to determine the constant on-time or the constant off-time, a power output stage operated by the pulse width modulation signal to produce a load current, and a frequency control circuit for loading feed forward by a second current added to the first current to adjust the constant on-time or the constant off-time for frequency compensation to the pulse width modulation signal.

Abstract translation: 非恒定频率电压调节器包括用于触发脉宽调制信号的恒定导通时间或恒定关断时间的恒定时间触发，电流发生器提供第一电流以确定恒定导通时间或 恒定的关断时间，由脉冲宽度调制信号操作以产生负载电流的功率输出级;以及频率控制电路，用于通过添加到第一电流的第二电流将前馈加载以调节恒定导通时间或恒定 关断时间用于频率补偿到脉宽调制信号。

公开(公告)号：US20110084673A1

公开(公告)日：2011-04-14

申请号：US12898910

申请日：2010-10-06

Applicant: WEI-HSU CHANG ,  YU-CHENG LIN ,  YU-KUANG WU ,  DAN CHEN

Inventor： WEI-HSU CHANG ,  YU-CHENG LIN ,  YU-KUANG WU ,  DAN CHEN

IPC: G05F1/10

CPC classification number: H02M3/1584 ,  H02M3/157 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A multi-phase buck converter has a digital compensator to select a set of compensation coefficients depending on the operating phase number of the multi-phase buck converter, or including different compensators for each operation phase number to improve the loop gain bandwidth, transient response and stability of the multi-phase buck converter. The multi-phase buck converter operates with more phase circuits for higher loading and operates with fewer phase circuits for lower loading. The compensation varies with the number of the operated phase circuits so to be adaptive to the operation condition with an optimized control-to-output voltage transfer function.

Abstract translation: 多相降压转换器具有数字补偿器，用于根据多相降压转换器的工作相位数来选择一组补偿系数，或者包括用于每个运行相位数的不同补偿器，以改善环路增益带宽，瞬态响应和 多相降压转换器的稳定性。 多相降压转换器具有更多的相位电路，可实现更高的负载，并以更少的相位电路运行，以实现更低的负载。 补偿根据操作的相位电路的数量而变化，以便利用优化的控制输出电压传递函数适应于操作条件。

公开(公告)号：US07911273B2

公开(公告)日：2011-03-22

申请号：US12382762

申请日：2009-03-24

Applicant: Jing-Meng Liu ,  Jwin-Yen Guo ,  Shao-Ming Sun

Inventor： Jing-Meng Liu ,  Jwin-Yen Guo ,  Shao-Ming Sun

IPC: H03F3/217

CPC classification number: H03F3/2173 ,  H03F1/26 ,  H03F2200/03 ,  H03F2200/114 ,  H03F2200/351

Abstract: A switching amplifier has a network including current sources and resistors connected to the two output terminals of the H-bridge of the switching amplifier, to provide a small current to the load connected between the two output terminals at zero input, whereby the common mode voltage bouncing is reduced and the switching amplifier has less power consumption and reduced electro-magnetic interference.

Abstract translation: 开关放大器具有包括连接到开关放大器的H桥的两个输出端的电流源和电阻器的网络，以在零输入处向连接在两个输出端子之间的负载提供小电流，由此共模电压 弹跳减少，开关放大器功耗更低，电磁干扰减少。

公开(公告)号：US07898227B2

公开(公告)日：2011-03-01

申请号：US12318665

申请日：2009-01-06

Applicant: Tsung-Wei Huang ,  Shui-Mu Lin ,  Jien-Sheng Chen ,  Kwan-Jen Chu

Inventor： Tsung-Wei Huang ,  Shui-Mu Lin ,  Jien-Sheng Chen ,  Kwan-Jen Chu

IPC: G05F1/10

CPC classification number: H02M3/158

Abstract: A non-synchronous boost converter includes a low-voltage device connected between the input voltage terminal and the output voltage terminal of the converter. When the converter is shutdown, the low-voltage device disconnects the output voltage terminal and the input voltage terminal. Since it is a low-voltage device used in the converter for load disconnection, the efficiency of the converter is improved with lower cost.

Abstract translation: 非同步升压转换器包括连接在转换器的输入电压端子和输出电压端子之间的低压装置。 当转换器关闭时，低压设备断开输出电压端子和输入电压端子。 由于它是用于负载断路的转换器中的低压装置，所以转换器的效率以较低的成本提高。

公开(公告)号：US20110043187A1

公开(公告)日：2011-02-24

申请号：US12701445

申请日：2010-02-05

Applicant: Sheng-Yu Tseng ,  Ying-Jhih Wn ,  Kuo-Chi Liu

Inventor： Sheng-Yu Tseng ,  Ying-Jhih Wn ,  Kuo-Chi Liu

IPC: G01R31/00

CPC classification number: H02S50/10 ,  Y02B10/14

Abstract: A method and a circuit for tracking maximum power of a photo-voltaic array performs the operation of load increase/decrease with a preset current difference and determines if the photo-voltaic array operates at zone A or zone B based on change of the output voltage before and after the operation to decide the next operation being for load increase or load decrease. It is not necessary for tracking the maximum power with the multiplier to estimate the output power of the photo-voltaic array. Therefore, the circuit for tracking the maximum power of the photo-voltaic array is capable of being simplified and joined to the pulse width modulation circuit to form an integrated circuit with a function of tracking the maximum power.

Abstract translation: 用于跟踪光伏阵列的最大功率的方法和电路以预设的电流差执行负载增加/减小的操作，并且基于输出电压的变化确定光伏阵列是否在区域A或区域B工作 在操作前后决定下一个操作是负载增加还是负载下降。 跟踪乘法器的最大功率不需要估计光伏阵列的输出功率。 因此，用于跟踪光伏阵列的最大功率的电路能够简化并连接到脉宽调制电路，以形成具有跟踪最大功率的功能的集成电路。

公开(公告)号：US20110006746A1

公开(公告)日：2011-01-13

申请号：US12830638

申请日：2010-07-06

Applicant: SHAO-HUNG LU ,  ISAAC Y. CHEN

Inventor： SHAO-HUNG LU ,  ISAAC Y. CHEN

IPC: G05F1/10

CPC classification number: H02M1/36

Abstract: A soft-start circuit for a switching regulator includes a signal generator and a scaling circuit coupled to the signal generator. During soft-start, the signal generator provides a ramp signal for the switching regulator such that the output voltage of the switching regulator changes from a residual voltage toward a target level. When soft-start is triggered, the scaling circuit provides a scaling voltage depending on the residual voltage, to shift the level of the ramp signal and consequently shorten the soft-start time of the switching regulator.

Abstract translation: 用于开关调节器的软启动电路包括信号发生器和耦合到信号发生器的缩放电路。 在软启动期间，信号发生器为开关稳压器提供斜坡信号，使得开关稳压器的输出电压从剩余电压向目标电平变化。 当软启动被触发时，缩放电路根据剩余电压提供缩放电压，以移动斜坡信号的电平，从而缩短开关稳压器的软启动时间。

公开(公告)号：US20110006728A1

公开(公告)日：2011-01-13

申请号：US12831494

申请日：2010-07-07

Applicant: NIEN-HUI KUNG ,  KWAN-JEN CHU

Inventor： NIEN-HUI KUNG ,  KWAN-JEN CHU

IPC: H02J7/00

CPC classification number: H02M3/158 ,  H02J7/0052 ,  H02J2007/0059 ,  H02M2001/0045 ,  Y02T90/127

Abstract: A hybrid battery charger includes a control circuit and a power stage. The control circuit includes an error amplifier to generate a first error signal and a second error signal according to an output voltage and an output current of the hybrid battery charger, a linear controller to generate a first control signal according to the first error signal, a PWM controller to generate a second control signal and a third control signal according to the second error signal, and according to a mode signal, a multiplexer to select the first control signal for the power stage to operate the hybrid battery charger in a linear mode, or the second and third control signals for the power stage to operate the hybrid battery charger in a switching mode.

Abstract translation: 混合电池充电器包括控制电路和功率级。 控制电路包括误差放大器，根据混合电池充电器的输出电压和输出电流产生第一误差信号和第二误差信号;线性控制器，用于根据第一误差信号产生第一控制信号; PWM控制器，根据第二误差信号产生第二控制信号和第三控制信号，并且根据模式信号，多路复用器选择用于功率级的第一控制信号以以线性模式操作混合电池充电器， 或用于功率级的第二和第三控制信号以开关模式操作混合电池充电器。

公开(公告)号：US20100320844A1

公开(公告)日：2010-12-23

申请号：US12818539

申请日：2010-06-18

Applicant: CHI-HUA LIN ,  CHIEN-FU TANG ,  ISAAC Y. CHEN ,  AN-TUNG CHEN

Inventor： CHI-HUA LIN ,  CHIEN-FU TANG ,  ISAAC Y. CHEN ,  AN-TUNG CHEN

IPC: H02B1/24

CPC classification number: H02B1/24 ,  H04R3/007 ,  Y10T307/74 ,  Y10T307/766

Abstract: A power off delay circuit includes a switch connected between an external power input terminal and an internal power supply terminal, a capacitor connected to the internal power supply terminal, and a hysteresis comparator to switch the switch according to the voltages of the external power input terminal and the internal power supply terminal. During on-time of the switch, the external power input terminal is connected to the internal power supply terminal and the capacitor can be charged by the external power source. When the switch is off, the capacitor provides electric power for an internal circuit. Application of the power off delay circuit to an audio system may eliminate the turn-off pops of the audio system.

Abstract translation: 断电延迟电路包括连接在外部电源输入端子和内部电源端子之间的开关，连接到内部电源端子的电容器和滞后比较器，用于根据外部电力输入端子的电压来切换开关 和内部电源端子。 在接通时，外部电源输入端子连接到内部电源端子，电容器可以通过外部电源充电。 当开关关闭时，电容为内部电路提供电力。 将断电延迟电路应用于音频系统可以消除音频系统的关闭声音。

公开(公告)号：US07830132B2

公开(公告)日：2010-11-09

申请号：US12461393

申请日：2009-08-11

Applicant: Jian-Rong Huang ,  Giovanni Capodivacca ,  Giuseppe Bernacchia ,  Kuo-Lung Tseng

Inventor： Jian-Rong Huang ,  Giovanni Capodivacca ,  Giuseppe Bernacchia ,  Kuo-Lung Tseng

IPC: G05F1/00

CPC classification number: H02M1/143

Abstract: An output ripple control circuit and method for a PWM system uses a hysteresis threshold to clamp the output ripple of the PWM system such that the output ripple will not vary with the dc level of the output voltage, and therefore the output ripple control may be combined into any main loop technologies.

Abstract translation: 用于PWM系统的输出纹波控制电路和方法使用滞后阈值钳位PWM系统的输出纹波，使得输出纹波不会随着输出电压的直流电平而变化，因此可以组合输出纹波控制 进入任何主循环技术。

公开(公告)号：US20100231186A1

公开(公告)日：2010-09-16

申请号：US12720030

申请日：2010-03-09

Applicant: KE-HORNG CHEN ,  MING-HSIN HUANG

Inventor： KE-HORNG CHEN ,  MING-HSIN HUANG

IPC: G05F1/10

CPC classification number: H02M3/158 ,  H02M2001/009

Abstract: A single-inductor multiple-output power converter includes an inductor having a first terminal and a second terminal. The first terminal of the inductor is coupled to a power input terminal, and the second terminal of the inductor is switched to either of the first terminal of the inductor, multiple power output terminals, and a ground terminal. By switching the second terminal of the inductor between the first terminal of the inductor, the power output terminals, and the ground terminal, the power converter may provide multiple output voltages at the power output terminals respectively, in a less loss and thereby higher efficiency manner.

Abstract translation: 单电感器多输出功率转换器包括具有第一端子和第二端子的电感器。 电感器的第一端子耦合到电源输入端子，电感器的第二端子切换到电感器的第一端子，多个功率输出端子和接地端子。 通过在电感器的第一端子，功率输出端子和接地端子之间切换电感器的第二端子，功率转换器可以以较少的损耗分别在功率输出端子处提供多个输出电压，从而以更高的效率方式 。