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    • 1. 发明申请
    • METHOD AND APPARATUS FOR POWER CONVERTER FAULT CONDITION DETECTION
    • 用于电力转换器故障状态检测的方法和装置
    • US20120051098A1
    • 2012-03-01
    • US13289932
    • 2011-11-04
    • Alex B. DjenguerianErdem Bircan
    • Alex B. DjenguerianErdem Bircan
    • H02M3/335
    • H02M3/33523H02M1/32
    • An example controller includes a feedback circuit coupled to provide feedback information representative of an output of the power converter during at least a portion of an OFF time of a power switch. A sense input receives a sense signal that is representative of a reflected voltage representative of an input voltage of the power converter during at least a portion of an ON time of the power switch. A fault detector is to be coupled to detect a fault condition in response to the reflected voltage being below a fault threshold for a fault period of time. A control is coupled to the fault detector and the feedback circuit to control switching of the power switch to regulate the output of the power converter in response to the feedback information and inhibit the switching of the power switch in response to the fault detector detecting the fault condition.
    • 示例性控制器包括反馈电路,其被耦合以在功率开关的OFF时间的至少一部分期间提供表示功率转换器的输出的反馈信息。 感测输入在电源开关的接通时间的至少一部分期间接收表示代表功率转换器的输入电压的反射电压的感测信号。 要故障检测器被耦合以响应于在故障时间段内的反射电压低于故障阈值来检测故障状况。 控制器耦合到故障检测器和反馈电路,以响应于反馈信息来控制功率开关的切换以调节功率转换器的输出,并且响应于故障检测器检测到故障而禁止电源开关的切换 条件。
    • 2. 发明申请
    • METHOD AND APPARATUS FOR ON/OFF CONTROL OF A POWER CONVERTER
    • 电源转换器开/关控制的方法和装置
    • US20100254166A1
    • 2010-10-07
    • US12816982
    • 2010-06-16
    • Alex B. DjenguerianBalu BalakrishnanErdem BircanDavid Michael Hugh Matthews
    • Alex B. DjenguerianBalu BalakrishnanErdem BircanDavid Michael Hugh Matthews
    • H02M3/335
    • H02M3/33515H02M3/157
    • A power converter control method and apparatus is disclosed. An example power converter controller according to aspects of the present invention includes a feedback sampling circuit coupled to receive a feedback signal representative of an output of a power converter to generate feedback signal samples during enabled switching cycles. The power converter controller also includes a switch conduction control circuit coupled to the feedback sampling circuit. The switch conduction control circuit includes switch conduction enable circuitry coupled to enable or disable the conduction of a power switch during a switching cycle in response to the feedback signal samples. The switch conduction control circuit also includes switch conduction scheduling circuitry coupled to determine a varying number of future enabled and disabled switching cycles in response to the feedback signal samples from a present switching cycle and one or more past switching cycles.
    • 公开了一种功率转换器控制方法和装置。 根据本发明的方面的示例性功率转换器控制器包括反馈采样电路,其被耦合以接收表示功率转换器的输出的反馈信号,以在启用的开关周期期间产生反馈信号采样。 电力转换器控制器还包括耦合到反馈采样电路的开关导通控制电路。 开关导通控制电路包括开关导通使能电路,其耦合以响应于反馈信号采样而在开关周期期间启用或禁用功率开关的导通。 开关导通控制电路还包括耦合以响应于来自当前开关周期和一个或多个过去开关周期的反馈信号样本确定未来启用和禁用的开关周期的变化数量的开关导通调度电路。
    • 3. 发明申请
    • METHOD AND APPARATUS FOR CONTROLLING THE MAXIMUM OUTPUT POWER OF A POWER CONVERTER
    • 控制电源转换器最大输出功率的方法和装置
    • US20100220503A1
    • 2010-09-02
    • US12780658
    • 2010-05-14
    • Alex B. DjenguerianErdem Bircan
    • Alex B. DjenguerianErdem Bircan
    • H02M3/335
    • H02M3/33523G05F1/66H02M1/32H02M2001/0009
    • A controller for a power converter is disclosed. An example circuit controller according to aspects of the present invention includes an input voltage sensor to be coupled to receive an input signal representative of an input voltage of the power converter. A current sensor is also included and is to be coupled to sense a current flowing in a power switch. A drive signal generator is to be coupled to drive the power switch into an on state for an on time period and an off state for an off time period. The controller is coupled to adjust a duty cycle of the power switch in response to a difference between a time it takes the current flowing in the power switch to change between two current values when the power switch is in the on state and a control time period.
    • 公开了一种用于功率转换器的控制器。 根据本发明的方面的示例性电路控制器包括要耦合以接收表示功率转换器的输入电压的输入信号的输入电压传感器。 电流传感器也被包括在内并被耦合以感测在电力开关中流动的电流。 驱动信号发生器将被耦合以将功率开关驱动为导通状态,并处于关闭时间段的关闭状态。 控制器被耦合以响应于在功率开关处于导通状态时在电力开关中流动的电流在两个电流值之间变化的时间之间的差异以及控制时间段来调节功率开关的占空比 。
    • 4. 发明申请
    • METHOD AND APPARATUS PROVIDING FINAL TEST AND TRIMMING FOR A POWER SUPPLY CONTROLLER
    • 为电源控制器提供最终测试和调试的方法和设备
    • US20090251121A1
    • 2009-10-08
    • US12484982
    • 2009-06-15
    • Balu BalakrishnanAlex B. DjenguerianErdem Bircan
    • Balu BalakrishnanAlex B. DjenguerianErdem Bircan
    • G05F3/02
    • G11C29/021G06F1/26G11C29/02H02M1/32H02M1/36H02M3/00H02M3/157
    • A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the selector circuit by toggling a voltage on an external terminal such as for example a power supply terminal, a control terminal or a function terminal of the power supply controller. The programmable circuit connection in the trim circuit can be programmed by applying a programming voltage to the external terminal. The shutdown circuit shuts down the power supply controller if the temperature rises above an over temperature threshold voltage. The shutdown circuit includes adjustment circuitry that can be used to test the shutdown circuit. The adjustment circuitry can adjust and reduce the over temperature threshold of the power supply controller. Thus, the power supply controller can be tested without having to actually heat the part. The disable circuit includes a programmable circuit connection, which when programmed prevents further trimming of power supply controller and prevents adjustment of the shutdown circuit over temperature threshold.
    • 具有最终测试和调整电路的电源控制器。 在一个实施例中,用于开关模式电源的电源控制器包括选择器电路,微调电路,关断电路和禁用电路。 微调电路包括可由选择器电路通过切换外部端子(例如电源端子,控制端子或电源控制器的功能端子)的电压来选择的可编程电路连接。 可以通过向外部端子施加编程电压来对编程电路中的可编程电路连接进行编程。 如果温度超过过温阈值电压,关闭电路会关闭电源控制器。 关断电路包括可用于测试关断电路的调节电路。 调节电路可以调节和降低电源控制器的过温阈值。 因此,可以对电源控制器进行测试,而无需实际加热部件。 禁用电路包括可编程电路连接,其在编程时防止进一步修整电源控制器并防止关断电路在温度阈值以上的调整。
    • 5. 发明申请
    • METHOD AND APPARATUS FOR ON/OFF CONTROL OF A POWER CONVERTER
    • 电源转换器开/关控制的方法和装置
    • US20120002448A1
    • 2012-01-05
    • US13234058
    • 2011-09-15
    • Alex B. DjenguerianBalu BalakrishnanErdem BircanDavid Michael Hugh Matthews
    • Alex B. DjenguerianBalu BalakrishnanErdem BircanDavid Michael Hugh Matthews
    • H02M3/335
    • H02M3/33515H02M3/157
    • A power converter is disclosed. An example power converter includes an energy transfer element coupled between a power converter input and a power converter output. A power switch is coupled to the energy transfer element and the power converter input. A feedback sampling circuit is coupled to receive a feedback signal representative of the power converter output to generate feedback signal samples during switching cycles. A switch conduction scheduling circuit is coupled to determine enabling and disabling of the power switch in future switching cycles in response to the feedback signal samples from a present switching cycle and one or more past switching cycles. A switch conduction control circuit is coupled to enable or disable conduction of the power switch during a switching cycle to control an amount of energy transferred from the power converter input to the power converter output.
    • 公开了一种功率转换器。 示例性功率转换器包括耦合在功率转换器输入和功率转换器输出之间的能量传递元件。 功率开关耦合到能量传递元件和功率转换器输入。 耦合反馈采样电路以接收表示功率转换器输出的反馈信号,以在开关周期期间产生反馈信号采样。 耦合开关导通调度电路以响应于来自当前开关周期和一个或多个过去开关周期的反馈信号样本,在将来的开关周期中确定功率开关的使能和禁止。 开关导通控制电路被耦合以在开关周期期间启用或禁用电力开关的导通,以控制从功率转换器输入传递到功率转换器输出的能量的量。
    • 8. 发明授权
    • Method and apparatus providing final test and trimming for a power supply controller
    • 为电源控制器提供最终测试和修整的方法和设备
    • US06388853B1
    • 2002-05-14
    • US09407609
    • 1999-09-28
    • Balu BalakrishnanAlex B. DjenguerianErdem Bircan
    • Balu BalakrishnanAlex B. DjenguerianErdem Bircan
    • H02H300
    • G11C29/021G06F1/26G11C29/02H02M1/32H02M1/36H02M3/00H02M3/157
    • A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the selector circuit by toggling a voltage on an external terminal such as for example a power supply terminal, a control terminal or a function terminal of the power supply controller. The programmable circuit connection in the trim circuit can be programmed by applying a programming voltage to the external terminal. The shutdown circuit shuts down the power supply controller if the temperature rises above an over temperature threshold voltage. The shutdown circuit includes adjustment circuitry that can be used to test the shutdown circuit. The adjustment circuitry can adjust and reduce the over temperature threshold of the power supply controller. Thus, the power supply controller can be tested without having to actually heat the part. The disable circuit includes a programmable circuit connection, which when programmed prevents further trimming of power supply controller and prevents adjustment of the shutdown circuit over temperature threshold.
    • 具有最终测试和调整电路的电源控制器。 在一个实施例中,用于开关模式电源的电源控制器包括选择器电路,微调电路,关断电路和禁用电路。 微调电路包括可由选择器电路通过切换外部端子(例如电源端子,控制端子或电源控制器的功能端子)的电压来选择的可编程电路连接。 可以通过向外部端子施加编程电压来对编程电路中的可编程电路连接进行编程。 如果温度超过过温阈值电压,关闭电路会关闭电源控制器。 关断电路包括可用于测试关断电路的调节电路。 调节电路可以调节和降低电源控制器的过温阈值。 因此,可以对电源控制器进行测试,而无需实际加热部件。 禁用电路包括可编程电路连接,其在编程时防止进一步修整电源控制器,并防止关断电路在温度阈值以上的调整。
    • 9. 发明授权
    • Method and apparatus for integrated cable drop compensation of a power converter
    • 电力转换器集成电缆降补偿的方法和装置
    • US09065346B2
    • 2015-06-23
    • US13232867
    • 2011-09-14
    • Alex B. DjenguerianErdem Bircan
    • Alex B. DjenguerianErdem Bircan
    • G05F1/10H02M3/335H02M1/00
    • H02M3/33515H02M3/33523H02M2001/0025Y10T307/858
    • An integrated circuit controller for a power converter to be coupled to a distribution network is disclosed. An example integrated circuit controller according to aspects of the present invention includes a switching control circuit that outputs a drive signal to control switching of a switch to regulate an output of the power converter. The integrated circuit controller also includes a cable drop compensator that outputs a compensated reference voltage signal to the switching control circuit in response to a switching signal. The switching signal is responsive to the drive signal. The compensated reference voltage signal is representative of a voltage value that is responsive to a distribution voltage across the distribution network and a load voltage across a load to be coupled to the distribution network. The switching of the switch is responsive to the compensated reference voltage signal and a feedback signal.
    • 公开了一种用于耦合到配电网络的功率转换器的集成电路控制器。 根据本发明的方面的示例性集成电路控制器包括切换控制电路,其输出驱动信号以控制开关的切换以调节功率转换器的输出。 集成电路控制器还包括电缆降落补偿器,其响应于开关信号将补偿参考电压信号输出到开关控制电路。 开关信号响应驱动信号。 补偿的参考电压信号代表响应分配网络上的配电电压的电压值和要耦合到配电网络的负载上的负载电压。 开关的切换响应于补偿的参考电压信号和反馈信号。