公开(公告)号：US20150162837A1

公开(公告)日：2015-06-11

申请号：US14100463

申请日：2013-12-09

Applicant: Analog Devices Technology

Inventor： Jun Duan ,  Liuqing Yang ,  Xudong Huang ,  Zhijie Zhu ,  Renjian Xie

IPC: H02M3/335

CPC classification number: H02M3/337 ,  H02M3/33569 ,  H02M3/33592 ,  Y02B70/1475

Abstract: A power converter can include an electrical isolation circuit between input and output nodes. An input signal monitor node can be provided, such as on a converter output side of the isolation circuit. In an example, a peak detection circuit can be coupled to the input signal monitor node. The output node of the power converter can be configured to supply an output power signal that is a function of an input signal at the input node. The power converter can include multiple, independently-switchable switches at one or more of the input and output sides of the isolation circuit. In an example, the power converter with the input signal monitor node can be configured as a bias supply to provide power, at the output node, to a controller circuit for a main stage power converter circuit.

Abstract translation: 功率转换器可以包括输入和输出节点之间的电隔离电路。 可以提供输入信号监视器节点，例如在隔离电路的转换器输出侧。 在一个示例中，峰值检测电路可以耦合到输入信号监视节点。 功率转换器的输出节点可以被配置为提供作为输入节点处的输入信号的函数的输出功率信号。 功率转换器可以在隔离电路的一个或多个输入和输出侧包括多个可独立切换的开关。 在一个示例中，具有输入信号监视器节点的功率转换器可以被配置为偏置电源，以在输出节点向主级功率转换器电路的控制器电路提供功率。

公开(公告)号：US20140266122A1

公开(公告)日：2014-09-18

申请号：US13827666

申请日：2013-03-14

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Zhijie Zhu ,  Junxiao Chen ,  Bin Shao

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M2003/1566

Abstract: Apparatus and methods for generating a drive signal of a switching signal are disclosed. A first circuit receives an oscillating reference signal, a first compensation signal, a second compensation signal, and a third compensation signal. The first compensation signal is indicative of an error between an output voltage of a power converter and a reference voltage. The second compensation signal is indicative of the error relative to a threshold. The third compensation signal is indicative of an output current of the power converter. The first circuit generates a comparison signal having a waveform including pulses having durations based at least partly on a combination of the periodic reference signal, the first compensation signal, the second compensation signal, and the third compensation signal. A second circuit receives a clock signal and the comparison signal and generates a drive signal for activation and deactivation of a driver transistor.

Abstract translation: 公开了用于产生开关信号的驱动信号的装置和方法。 第一电路接收振荡参考信号，第一补偿信号，第二补偿信号和第三补偿信号。 第一补偿信号表示功率转换器的输出电压与参考电压之间的误差。 第二补偿信号指示相对于阈值的误差。 第三补偿信号表示功率转换器的输出电流。 第一电路产生具有波形的比较信号，该波形包括至少部分地基于周期性参考信号，第一补偿信号，第二补偿信号和第三补偿信号的组合的具有持续时间的脉冲。 第二电路接收时钟信号和比较信号并产生用于驱动晶体管的激活和去激活的驱动信号。

公开(公告)号：US08928303B2

公开(公告)日：2015-01-06

申请号：US13827666

申请日：2013-03-14

Applicant: Analog Devices Technology

Inventor： Zhijie Zhu ,  Junxiao Chen ,  Bin Shao

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M2003/1566

Abstract: Apparatus and methods for generating a drive signal of a switching signal are disclosed. A first circuit receives an oscillating reference signal, a first compensation signal, a second compensation signal, and a third compensation signal. The first compensation signal is indicative of an error between an output voltage of a power converter and a reference voltage. The second compensation signal is indicative of the error relative to a threshold. The third compensation signal is indicative of an output current of the power converter. The first circuit generates a comparison signal having a waveform including pulses having durations based at least partly on a combination of the periodic reference signal, the first compensation signal, the second compensation signal, and the third compensation signal. A second circuit receives a clock signal and the comparison signal and generates a drive signal for activation and deactivation of a driver transistor.

Abstract translation: 公开了用于产生开关信号的驱动信号的装置和方法。 第一电路接收振荡参考信号，第一补偿信号，第二补偿信号和第三补偿信号。 第一补偿信号表示功率转换器的输出电压与参考电压之间的误差。 第二补偿信号指示相对于阈值的误差。 第三补偿信号表示功率转换器的输出电流。 第一电路产生具有波形的比较信号，该波形包括至少部分地基于周期性参考信号，第一补偿信号，第二补偿信号和第三补偿信号的组合的具有持续时间的脉冲。 第二电路接收时钟信号和比较信号并产生用于驱动晶体管的激活和去激活的驱动信号。