公开(公告)号：US08754618B2

公开(公告)日：2014-06-17

申请号：US13224384

申请日：2011-09-02

申请人： Hua-Chiang Huang

发明人： Hua-Chiang Huang

IPC分类号： G05F1/10 ,  H02M3/158

CPC分类号： H02M3/1584 ,  H02J1/102

摘要： A multi-phase DC-DC controller. The multi-phase DC-DC controller comprises converter channels, a channel control device and a power control device. Each converter channel comprises a switch device, a first output node and an inductor coupled between the switch device and the first output node. The channel control device generates adjusted pulse width modulation signals according to control signals of the converter channels to respectively control operation of the switch device in each converter channel. The power control device generates the control signals according to sensed currents in the converter channels so as to dynamically turn on or off each converter channel according to the sensed currents.

摘要翻译： 多相DC-DC控制器。 多相DC-DC控制器包括转换器通道，通道控制装置和功率控制装置。 每个转换器通道包括开关器件，第一输出节点和耦合在开关器件与第一输出节点之间的电感器。 信道控制装置根据转换器信道的控制信号生成调整后的脉宽调制信号，分别控制各转换器信道中的开关装置的动作。 功率控制装置根据转换器通道中的感测电流产生控制信号，以根据感测的电流动态地接通或关闭每个转换器通道。

公开(公告)号：US20110316503A1

公开(公告)日：2011-12-29

申请号：US13224384

申请日：2011-09-02

申请人： Hua-Chiang Huang

发明人： Hua-Chiang Huang

IPC分类号： G05F1/00

CPC分类号： H02M3/1584 ,  H02J1/102

摘要： A multi-phase DC-DC controller. The multi-phase DC-DC controller comprises converter channels, a channel control device and a power control device. Each converter channel comprises a switch device, a first output node and an inductor coupled between the switch device and the first output node. The channel control device generates adjusted pulse width modulation signals according to control signals of the converter channels to respectively control operation of the switch device in each converter channel. The power control device generates the control signals according to sensed currents in the converter channels so as to dynamically turn on or off each converter channel according to the sensed currents.

摘要翻译： 多相DC-DC控制器。 多相DC-DC控制器包括转换器通道，通道控制装置和功率控制装置。 每个转换器通道包括开关器件，第一输出节点和耦合在开关器件与第一输出节点之间的电感器。 信道控制装置根据转换器信道的控制信号生成调整后的脉宽调制信号，分别控制各转换器信道中的开关装置的动作。 功率控制装置根据转换器通道中的感测电流产生控制信号，以根据感测的电流动态地接通或关闭每个转换器通道。

公开(公告)号：US07928704B2

公开(公告)日：2011-04-19

申请号：US12081668

申请日：2008-04-18

申请人： Hua-Chiang Huang

发明人： Hua-Chiang Huang

IPC分类号： G05F1/59

CPC分类号： H02M1/14 ,  H02M3/1584 ,  H02M3/1588 ,  Y02B70/1466

摘要： A droop circuit of a DC-DC converter is provided, wherein the DC-DC converter includes an output inductor coupled between an output of the DC-DC converter and a phase node for providing an output voltage. A current sense device is coupled between the phase node and the output of the DC-DC converter, includes an inductor coupled to the phase node and senses a current from the phase node. A first resistor is coupled to the current sense device. An amplifier circuit includes an amplifier having an inverting input, a non-inverting input coupled to the first resistor and an output directly connected to the inverting input, and a second resistor coupled between the inverting input and the output of the DC-DC converter. The amplifier circuit provides a droop current according to the second resistor and a voltage difference between the non-inverting input and the output of the DC-DC converter, and the voltage difference is related to the current.

摘要翻译： 提供DC-DC转换器的下降电路，其中DC-DC转换器包括耦合在DC-DC转换器的输出端和用于提供输出电压的相位节点之间的输出电感器。 电流感测装置耦合在相位节点和DC-DC转换器的输出之间，包括耦合到相位节点并感测来自相位节点的电流的电感器。 第一电阻器耦合到电流检测装置。 放大器电路包括具有反相输入，耦合到第一电阻的非反相输入和直接连接到反相输入的输出的放大器，以及耦合在DC-DC转换器的反相输入和输出之间的第二电阻。 放大器电路根据第二电阻提供下降电流，并且提供DC-DC转换器的非反相输入和输出之间的电压差，并且电压差与电流相关。

公开(公告)号：US08030908B2

公开(公告)日：2011-10-04

申请号：US12153769

申请日：2008-05-23

申请人： Hua-Chiang Huang

发明人： Hua-Chiang Huang

IPC分类号： G05F1/10 ,  G05F1/40

CPC分类号： H02M3/1584 ,  H02J1/102

摘要： A multi-phase DC-DC controller. The multi-phase DC-DC controller comprises converter channels, a channel control device and a power control device. Each converter channel comprises a switch device, a first output node and an inductor coupled between the switch device and the first output node. The channel control device generates adjusted pulse width modulation signals according to control signals of the converter channels to respectively control operation of the switch device in each converter channel. The power control device generates the control signals according to sensed currents in the converter channels so as to dynamically turn on or off each converter channel according to the sensed currents.

摘要翻译： 多相DC-DC控制器。 多相DC-DC控制器包括转换器通道，通道控制装置和功率控制装置。 每个转换器通道包括开关器件，第一输出节点和耦合在开关器件与第一输出节点之间的电感器。 信道控制装置根据转换器信道的控制信号生成调整后的脉宽调制信号，分别控制各转换器信道中的开关装置的动作。 功率控制装置根据转换器通道中的感测电流产生控制信号，以根据感测的电流动态地接通或关闭每个转换器通道。

公开(公告)号：US20090153114A1

公开(公告)日：2009-06-18

申请号：US12149352

申请日：2008-04-30

申请人： Hua-Chiang Huang

发明人： Hua-Chiang Huang

IPC分类号： G05F1/00

CPC分类号： H02M3/1584 ,  H02M2001/0032 ,  H02M2003/1566 ,  Y02B70/16

摘要： A DC-DC converter used to convert an input voltage to an output voltage is disclosed. The DC-DC converter comprises a pulse-width-modulation (PWM) generator, a transient boost circuit, a logic circuit, a switching device, and a buck circuit. The pulse-width-modulation (PWM) generator generates a PWM signal according to the output voltage. The transient boost circuit generates an adjusting signal according to the variation of the output voltage. The logic circuit generates a switch signal according to the PWM signal and the adjusting signal. The switching signal is at a high level when the PWM signal or the adjusting signal is at the high level, and the switching signal is at a low level when the PWM signal and the adjusting signal are at the low level. The switching device converts the input voltage to a driving signal according to the switching signal. The buck circuit receives the driving signal to generate the output voltage.

摘要翻译： 公开了一种用于将输入电压转换为输出电压的DC-DC转换器。 DC-DC转换器包括脉冲宽度调制（PWM）发生器，瞬态升压电路，逻辑电路，开关器件和降压电路。 脉冲宽度调制（PWM）发生器根据输出电压产生PWM信号。 瞬态升压电路根据输出电压的变化产生调整信号。 逻辑电路根据PWM信号和调整信号产生开关信号。 当PWM信号或调整信号处于高电平时，开关信号处于高电平，当PWM信号和调整信号处于低电平时，开关信号处于低电平。 开关装置根据开关信号将输入电压转换为驱动信号。 降压电路接收驱动信号以产生输出电压。

公开(公告)号：US20090051334A1

公开(公告)日：2009-02-26

申请号：US12081668

申请日：2008-04-18

申请人： Hua-Chiang Huang

发明人： Hua-Chiang Huang

IPC分类号： G05F1/46

CPC分类号： H02M1/14 ,  H02M3/1584 ,  H02M3/1588 ,  Y02B70/1466

摘要： A droop circuit of a DC-DC converter is provided, wherein the DC-DC converter includes an output inductor coupled between an output of the DC-DC converter and a phase node for providing an output voltage. A current sense device is coupled between the phase node and the output of the DC-DC converter, includes an inductor coupled to the phase node and senses a current from the phase node. A first resistor is coupled to the current sense device. An amplifier circuit includes an amplifier having an inverting input, a non-inverting input coupled to the first resistor and an output directly connected to the inverting input, and a second resistor coupled between the inverting input and the output of the DC-DC converter. The amplifier circuit provides a droop current according to the second resistor and a voltage difference between the non-inverting input and the output of the DC-DC converter, and the voltage difference is related to the current.

摘要翻译： 提供DC-DC转换器的下降电路，其中DC-DC转换器包括耦合在DC-DC转换器的输出端和用于提供输出电压的相位节点之间的输出电感器。 电流感测装置耦合在相位节点和DC-DC转换器的输出之间，包括耦合到相位节点并感测来自相位节点的电流的电感器。 第一电阻器耦合到电流检测装置。 放大器电路包括具有反相输入，耦合到第一电阻的非反相输入和直接连接到反相输入的输出的放大器，以及耦合在DC-DC转换器的反相输入和输出之间的第二电阻。 放大器电路根据第二电阻提供下降电流，并且提供DC-DC转换器的非反相输入和输出之间的电压差，并且电压差与电流相关。

公开(公告)号：US09030184B2

公开(公告)日：2015-05-12

申请号：US13615615

申请日：2012-09-14

申请人： Hua-Chiang Huang ,  Jiun-Chiang Chen ,  Wei-Ling Chen

发明人： Hua-Chiang Huang ,  Jiun-Chiang Chen ,  Wei-Ling Chen

IPC分类号： G05F1/00 ,  H02M3/156

CPC分类号： H02M3/156

摘要： A DC-DC converter and a voltage conversion method thereof are provided. The DC-DC converter includes an output unit, a control unit and a trigger unit. The output unit converts an input voltage into an output voltage. The control unit generates a control signal according to the input voltage, an output feedback voltage related to the output voltage and a reference voltage, so as to make the output unit generate the output voltage. The trigger unit generates a first trigger signal according to the control signal, the output feedback voltage and the reference voltage. When the output feedback voltage is less than the reference voltage by a preset voltage, the control unit controls the output unit to perform a voltage-regulating process to the output voltage in advance.

摘要翻译： 提供了DC-DC转换器及其电压转换方法。 DC-DC转换器包括输出单元，控制单元和触发单元。 输出单元将输入电压转换为输出电压。 控制单元根据输入电压产生控制信号，产生与输出电压相关的输出反馈电压和参考电压，以使输出单元产生输出电压。 触发单元根据控制信号，输出反馈电压和参考电压产生第一触发信号。 当输出反馈电压小于参考电压预设电压时，控制单元控制输出单元预先对输出电压进行电压调节处理。

公开(公告)号：US08674673B2

公开(公告)日：2014-03-18

申请号：US13022571

申请日：2011-02-07

申请人： Shih-Chieh Hung ,  Hua-Chiang Huang ,  Jiun-Chiang Chen

发明人： Shih-Chieh Hung ,  Hua-Chiang Huang ,  Jiun-Chiang Chen

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

摘要： A switching power converter including an upper-bridge switch, a lower-bridge switch, an impedance circuit, a first control circuit, a second control circuit and a logic circuit is provided. The impedance circuit generates an output voltage and a sensing current according to a conductive state of the upper-bridge switch and the lower-bridge switch. The first control circuit generates a first pulse signal according to the output voltage. The second control circuit has a first mode and a second mode for generating a second pulse signal and a third pulse signal individually. Furthermore, the second control circuit uses different threshold values in different modes to determine whether to switch the mode thereof, so as to form a hysteretic effect in mode switching. The logic circuit controls the upper-bridge switch by the first pulse signal, and controls the lower-bridge switch by the second pulse signal or the third pulse signal.

摘要翻译： 提供一种包括上桥开关，下桥开关，阻抗电路，第一控制电路，第二控制电路和逻辑电路的开关电源转换器。 阻抗电路根据上桥开关和下桥开关的导通状态产生输出电压和感测电流。 第一控制电路根据输出电压产生第一脉冲信号。 第二控制电路具有分别产生第二脉冲信号和第三脉冲信号的第一模式和第二模式。 此外，第二控制电路使用不同模式的不同阈值来确定是否切换其模式，以便在模式切换中形成滞后效应。 逻辑电路通过第一脉冲信号控制上桥开关，并通过第二脉冲信号或第三脉冲信号控制下桥开关。

公开(公告)号：US20130335046A1

公开(公告)日：2013-12-19

申请号：US13615607

申请日：2012-09-14

申请人： Hua-Chiang Huang

发明人： Hua-Chiang Huang

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2003/1566

摘要： A DC-DC controller and an operation method thereof are provided. The DC-DC controller is configured to connect an output stage. The DC-DC controller includes a pulse width modulation (PWM) calculation circuit, a load transient detection circuit, and an override time calculation circuit. The PWM calculation circuit provides a PWM signal to the output stage. The load transient detection circuit receives an input signal related to an output voltage of the output stage. The load transient detection circuit provides a control signal according to the input signal and a predetermined input signal. The override time calculation circuit provides an override control signal with a predetermined time to the PWM calculation circuit according to the control signal. The PWM calculation circuit adjusts a duty cycle of the PWM signal according to the override control signal.

摘要翻译： 提供DC-DC控制器及其操作方法。 DC-DC控制器被配置为连接输出级。 DC-DC控制器包括脉宽调制（PWM）计算电路，负载瞬变检测电路和超控时间计算电路。 PWM计算电路向输出级提供PWM信号。 负载瞬变检测电路接收与输出级的输出电压相关的输入信号。 负载瞬变检测电路根据输入信号和预定的输入信号提供控制信号。 超控时间计算电路根据控制信号向PWM计算电路提供具有预定时间的覆盖控制信号。 PWM计算电路根据覆盖控制信号调整PWM信号的占空比。

公开(公告)号：US20130027012A1

公开(公告)日：2013-01-31

申请号：US13541667

申请日：2012-07-04

申请人： Hua-Chiang Huang

发明人： Hua-Chiang Huang

IPC分类号： G05F1/46

CPC分类号： H02M3/156 ,  H02M1/44 ,  H02M2001/0025 ,  H02M2001/0032 ,  Y02B70/16

摘要： A DC-DC converter is provided. When a load of the DC-DC converter is too light, the DC-DC converter can raise a frequency of its PWM signal, and reduce a pulse width of the PWM signal, so as to avoid the frequency of the PWM signal falling into a frequency range that can heard by human's ear and maintain high conversion efficiency of the DC-DC converter.

摘要翻译： 提供DC-DC转换器。 当DC-DC转换器的负载太轻时，DC-DC转换器可以提高其PWM信号的频率，并减小PWM信号的脉冲宽度，以避免PWM信号的频率落入 频率范围可以听到人耳，并保持DC-DC转换器的高转换效率。