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1.发明申请Switching Mode Power Supply Capable of Providing a Block Time in Response to an Output Current 有权开关模式电源能够提供响应于输出电流的阻塞时间公开(公告)号：US20160020699A1
公开(公告)日：2016-01-21
申请号：US14333422
申请日：2014-07-16
申请人： Grenergy Opto Inc.
发明人： Yi-Lun Shen , Ren-Yi Chen
IPC分类号： H02M3/24
CPC分类号： H02M3/33507 , H02M1/44
摘要： A power controller provides a block time in response to an output current to an output load, and the block time determines a maximum switching frequency of a switching mode power supply. An exemplifying power controller has an output current estimator, a block time generator, and a pulse width modulator. The output current estimator provides a load representative signal in response to a discharge time of the inductive device and a current sense signal, wherein the current sense signal represents a current through an inductive device. The block time generator provides a block time based on the load representative signal. The pulse width modulator generates a pulse-width-modulation signal to control a power switch in response to a compensation signal, which is in response to the output voltage to the output load. The cycle time of the pulse-width-modulation signal is limited to be not less than the block time.
摘要翻译： 功率控制器响应于输出负载的输出电流而提供阻塞时间，并且块时间确定开关模式电源的最大开关频率。 示例性功率控制器具有输出电流估计器，块时间发生器和脉冲宽度调制器。 输出电流估计器响应于感应器件的放电时间和电流检测信号而提供负载代表信号，其中电流检测信号表示通过电感器件的电流。 块时间发生器基于负载代表信号提供块时间。 脉宽调制器响应于对输出负载的输出电压的补偿信号，产生脉冲宽度调制信号来控制电源开关。 脉冲宽度调制信号的周期时间被限制为不小于块时间。
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2.发明授权Switching mode power supply capable of providing a block time in response to an output current 有权开关模式电源能够响应输出电流提供阻塞时间公开(公告)号：US09431911B2
公开(公告)日：2016-08-30
申请号：US14333422
申请日：2014-07-16
申请人： Grenergy Opto Inc.
发明人： Yi-Lun Shen , Ren-Yi Chen
CPC分类号： H02M3/33507 , H02M1/44
摘要： A power controller provides a block time in response to an output current to an output load, and the block time determines a maximum switching frequency of a switching mode power supply. An exemplifying power controller has an output current estimator, a block time generator, and a pulse width modulator. The output current estimator provides a load representative signal in response to a discharge time of the inductive device and a current sense signal, wherein the current sense signal represents a current through an inductive device. The block time generator provides a block time based on the load representative signal. The pulse width modulator generates a pulse-width-modulation signal to control a power switch in response to a compensation signal, which is in response to the output voltage to the output load. The cycle time of the pulse-width-modulation signal is limited to be not less than the block time.
摘要翻译： 功率控制器响应于输出负载的输出电流而提供阻塞时间，并且块时间确定开关模式电源的最大开关频率。 示例性功率控制器具有输出电流估计器，块时间发生器和脉冲宽度调制器。 输出电流估计器响应于感应器件的放电时间和电流检测信号而提供负载代表信号，其中电流检测信号表示通过电感器件的电流。 块时间发生器基于负载代表信号提供块时间。 脉宽调制器响应于对输出负载的输出电压的补偿信号，产生脉冲宽度调制信号来控制电源开关。 脉冲宽度调制信号的周期时间被限制为不小于块时间。
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3.发明申请公开(公告)号：US20150263510A1
公开(公告)日：2015-09-17
申请号：US14203757
申请日：2014-03-11
申请人： Grenergy Opto Inc.
发明人： Chen-Lun Yang , Ren-Yi Chen , Shun-Chin Chou
CPC分类号： H02H7/125 , H02M1/32 , H02M3/156 , H02M7/06 , H02M2001/007 , H05B33/0887 , Y02B20/341
摘要： Disclosure includes a control method for over voltage protection, suitable for a power converter. The power converter has a rectifier for rectifying an alternative-current voltage into a direct-current input voltage. The direct-current input voltage is sensed and determined whether it locates in a valley. A detection voltage is provided, capable of representing the direct-current input voltage. The detection voltage is compared with a predetermined reference voltage. When the detection voltage exceeds the predetermined reference voltage and the direct-current input voltage is in the valley, an OVP signal is provided to stop the power conversion of the power converter.
摘要翻译： 公开内容包括适用于功率转换器的过电压保护控制方法。 功率转换器具有用于将替代电流电压整流为直流输入电压的整流器。 检测直流输入电压是否位于谷底。 提供了能够表示直流输入电压的检测电压。 将检测电压与预定的参考电压进行比较。 当检测电压超过预定参考电压并且直流输入电压处于谷值时，提供OVP信号以停止功率转换器的功率转换。
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4.发明授权公开(公告)号：US09148013B1
公开(公告)日：2015-09-29
申请号：US14203757
申请日：2014-03-11
申请人： Grenergy Opto Inc.
发明人： Chen-Lun Yang , Ren-Yi Chen , Shun-Chin Chou
CPC分类号： H02H7/125 , H02M1/32 , H02M3/156 , H02M7/06 , H02M2001/007 , H05B33/0887 , Y02B20/341
摘要： Disclosure includes a control method for over voltage protection, suitable for a power converter. The power converter has a rectifier for rectifying an alternative-current voltage into a direct-current input voltage. The direct-current input voltage is sensed and determined whether it locates in a valley. A detection voltage is provided, capable of representing the direct-current input voltage. The detection voltage is compared with a predetermined reference voltage. When the detection voltage exceeds the predetermined reference voltage and the direct-current input voltage is in the valley, an OVP signal is provided to stop the power conversion of the power converter.
摘要翻译： 公开内容包括适用于功率转换器的过电压保护控制方法。 功率转换器具有用于将替代电流电压整流为直流输入电压的整流器。 检测直流输入电压是否位于谷底。 提供了能够表示直流输入电压的检测电压。 将检测电压与预定的参考电压进行比较。 当检测电压超过预定参考电压并且直流输入电压处于谷值时，提供OVP信号以停止功率转换器的功率转换。
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