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1.发明授权Digital control unit having a transient detector for controlling a switched mode power supply 有权数字控制单元具有用于控制开关模式电源的瞬态检测器公开(公告)号：US08451038B2
公开(公告)日：2013-05-28
申请号：US13388578
申请日：2011-02-02
IPC分类号： G05F1/00
CPC分类号： H02M3/156 , H02M2001/0022
摘要： A switched mode power supply (SMPS) comprising a feedback unit, voltage feed forward (VFF) compensation signal generator and a transient detector. A VFF compensation signal is only applied to the output of the feedback unit when a transient is detected by the transient detector on the input voltage of the SMPS, thereby saving power and computation time. The transient detector comprises a first comparator to detect that a positive transient has occurred if a difference signal is greater than a positive threshold level; a second comparator to determine if the difference signal is within a predetermined range of positive values and output a result that indicates if the difference signal is within the predetermined range of positive values; and a first calculator to detect that a positive transient has occurred if, out of a first predetermined number of consecutive results of the output of the second comparator, there is at least a second predetermined number of results indicating that the difference signal is within the predetermined range of positive values. The transient detector comprises further features for similarly detecting a negative transient.
摘要翻译： 包括反馈单元，电压前馈（VFF）补偿信号发生器和瞬态检测器的开关模式电源（SMPS）。 当瞬态检测器对SMPS的输入电压进行瞬态检测时，VFF补偿信号仅适用于反馈单元的输出，从而节省功率和计算时间。 瞬态检测器包括第一比较器，用于检测如果差信号大于正阈值电平则发生正瞬变; 第二比较器，用于确定差分信号是否在正值的预定范围内，并输出指示差信号是否在正值的预定范围内的结果; 以及第一计算器，用于检测是否产生正瞬态，如果在第二比较器的输出的第一预定数量的连续结果中存在至少第二预定数量的结果，指示差信号在预定的 正值范围。 瞬态检测器包括用于类似地检测负瞬变的另外的特征。
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公开(公告)号：US20120287681A1
公开(公告)日：2012-11-15
申请号：US13502276
申请日：2011-05-10
CPC分类号： H02M1/38 , H02M3/33592 , Y02B70/1475
摘要： A switching delay controller (150) for controlling a switching delay between the switching of a first and a second switching element (Q1 to Q4) in a switched mode power supply (300), the switched mode power supply comprising a feedback signal generator (140) operable to generate a feedback signal indicative of a difference between an output (Vout) of the switched mode power supply and a reference (Vref) for the output, and a drive circuit (120) for switching the first and second switching elements so as to convert an input voltage (Vin) to the switched mode power supply (300) into an output voltage (Vout) thereof based on the feedback signal. The switching delay controller (150) comprises a switching delay calculator (152) operable to cause a change of the switching delay for at least one switching cycle of the switched mode power supply, and a feedback signal monitor (151) operable to monitor the feedback signal and determine a change in the feedback signal in response to the change to the switching delay by the switching delay calculator (152). The switching delay calculator (152) is further operable to calculate a switching delay to increase an efficiency of the switched mode power supply (300) based on the determined change in the feedback signal, and cause a change of the switching delay in the switched mode power supply to the calculated switching delay.
摘要翻译： 一种用于控制开关模式电源（300）中的第一和第二开关元件（Q1至Q4）的切换之间的开关延迟的开关延迟控制器（150），所述开关模式电源包括反馈信号发生器（140） ），用于产生指示所述开关模式电源的输出（Vout）与所述输出的基准（Vref）之间的差的反馈信号;以及用于切换所述第一和第二开关元件的驱动电路（120），以便 基于所述反馈信号将输入电压（Vin）转换为开关模式电源（300）至其输出电压（Vout）。 切换延迟控制器（150）包括切换延迟计算器（152），其可操作以在切换模式电源的至少一个切换周期中引起切换延迟的改变;以及反馈信号监视器（151），其可操作以监视反馈 响应于切换延迟计算器（152）对切换延迟的改变来确定反馈信号的变化。 开关延迟计算器（152）还可操作以基于所确定的反馈信号的变化来计算开关延迟以提高开关模式电源（300）的效率，并且导致开关模式中的开关延迟的改变 电源为计算出的切换延迟。
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公开(公告)号：US08902617B2
公开(公告)日：2014-12-02
申请号：US13502276
申请日：2011-05-10
CPC分类号： H02M1/38 , H02M3/33592 , Y02B70/1475
摘要： A switching delay controller is configured to control a switching delay between the switching of first and second switching elements in a switched mode power supply. The switched mode power supply generates a feedback signal indicative of a difference between an output of the switched mode power supply and a reference for the output, and switches the first and second switching elements to convert an input voltage into an output voltage based on the feedback signal. The switching delay controller includes a switching delay calculator operable to cause a change of the switching delay for at least one switching cycle of the switched mode power supply, and a feedback signal monitor operable to monitor the feedback signal and determine a change in the feedback signal in response to the change of the switching delay by the switching delay calculator.
摘要翻译： 开关延迟控制器被配置为控制开关模式电源中的第一和第二开关元件的切换之间的切换延迟。 开关模式电源产生指示开关模式电源的输出与输出的基准之间的差异的反馈信号，并且基于反馈来切换第一和第二开关元件以将输入电压转换为输出电压 信号。 切换延迟控制器包括切换延迟计算器，其可操作以在切换模式电源的至少一个切换周期中引起切换延迟的改变，以及反馈信号监视器，可操作以监视反馈信号并确定反馈信号的变化 响应于切换延迟计算器的切换延迟的变化。
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4.发明申请CONTROL OF DYNAMIC BUS VOLTAGE IN AN INTERMEDIATE BUS ARCHITECTURE POWER SYSTEM 有权中间总线结构电力系统中动态总线电压的控制公开(公告)号：US20120319504A1
公开(公告)日：2012-12-20
申请号：US13501584
申请日：2011-04-20
申请人： Jonas Malmberg , Anders Kullman , Fredrik Wahledow , Henrik Borgengren , Magnus Karlsson , Oscar Persson
发明人： Jonas Malmberg , Anders Kullman , Fredrik Wahledow , Henrik Borgengren , Magnus Karlsson , Oscar Persson
IPC分类号： H02J1/00
CPC分类号： H02J1/08 , G06F1/26 , G06F1/3253 , H02M3/157 , H02M3/158 , H02M2001/007 , H02M2001/008 , Y02D10/151
摘要： To reduce power loss in an intermediate bus architecture power system, embodiments of the present invention provide an intermediate bus converter which converts an input voltage to an intermediate bus voltage using a converting unit; receives a signal indicative of an output of a converting unit; determines an intermediate bus voltage to reduce power loss in dependence upon the signal indicative of an output of the converting unit; generates a control signal to control the converting unit to convert the input voltage to the determined intermediate bus voltage; and generates an intermediate bus voltage in dependence upon the control signal.
摘要翻译： 为了减少中间总线架构电力系统的功率损耗，本发明的实施例提供一种中间总线转换器，其使用转换单元将输入电压转换为中间总线电压; 接收指示转换单元的输出的信号; 根据指示转换单元的输出的信号，确定中间总线电压以减少功率损耗; 产生控制信号以控制转换单元将输入电压转换成所确定的中间总线电压; 并根据控制信号产生中间总线电压。
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5.发明申请DIGITAL CONTROL UNIT HAVING A TRANSIENT DETECTOR FOR CONTROLLING A SWITCHED MODE POWER SUPPLY 有权具有用于控制切换模式电源的瞬态检测器的数字控制单元公开(公告)号：US20120200331A1
公开(公告)日：2012-08-09
申请号：US13388578
申请日：2011-02-02
IPC分类号： H03K3/017
CPC分类号： H02M3/156 , H02M2001/0022
摘要： A switched mode power supply (SMPS) comprising a feedback unit, voltage feed forward (VFF) compensation signal generator and a transient detector. A VFF compensation signal is only applied to the output of the feedback unit when a transient is detected by the transient detector on the input voltage of the SMPS, thereby saving power and computation time. The transient detector comprises a first comparator to detect that a positive transient has occurred if a difference signal is greater than a positive threshold level; a second comparator to determine if the difference signal is within a predetermined range of positive values and output a result that indicates if the difference signal is within the predetermined range of positive values; and a first calculator to detect that a positive transient has occurred if, out of a first predetermined number of consecutive results of the output of the second comparator, there is at least a second predetermined number of results indicating that the difference signal is within the predetermined range of positive values. The transient detector comprises further features for similarly detecting a negative transient.
摘要翻译： 包括反馈单元，电压前馈（VFF）补偿信号发生器和瞬态检测器的开关模式电源（SMPS）。 当瞬态检测器对SMPS的输入电压进行瞬态检测时，VFF补偿信号仅适用于反馈单元的输出，从而节省功率和计算时间。 瞬态检测器包括第一比较器，用于检测如果差信号大于正阈值电平则发生正瞬变; 第二比较器，用于确定差分信号是否在正值的预定范围内，并输出指示差信号是否在正值的预定范围内的结果; 以及第一计算器，用于检测是否产生正瞬态，如果在第二比较器的输出的第一预定数量的连续结果中存在至少第二预定数量的结果，指示差信号在预定的 正值范围。 瞬态检测器包括用于类似地检测负瞬变的另外的特征。
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公开(公告)号：US10153701B2
公开(公告)日：2018-12-11
申请号：US14002955
申请日：2011-03-03
申请人： Magnus Karlsson , Anders Kullman , Fredrik Wahledow , Henrik Borgengren , Jonas Malmberg , Oscar Persson
发明人： Magnus Karlsson , Anders Kullman , Fredrik Wahledow , Henrik Borgengren , Jonas Malmberg , Oscar Persson
摘要： A control circuit for a switched mode power supply (SMPS) has an input voltage reference voltage generator arranged to receive a signal indicative of an input voltage of the SMPS and is arranged to generate a reference signal directly proportional to the input voltage. An error signal generator of the control circuit is arranged to receive a signal indicative of an output voltage of the SMPS and arranged to generate an error signal based on the reference signal generated by the input reference voltage generator and based on the output voltage of the SMPS. A duty cycle control signal generator of the control circuit is arranged to generate a control signal, to control the duty cycle of the SMPS, in dependence upon the error signal.
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7.发明授权Control of dynamic bus voltage in an intermediate bus architecture power system 有权在中间总线架构电源系统中控制动态总线电压公开(公告)号：US09142957B2
公开(公告)日：2015-09-22
申请号：US13501584
申请日：2011-04-20
申请人： Jonas Malmberg , Anders Kullman , Fredrik Wahledow , Henrik Borgengren , Magnus Karlsson , Oscar Persson
发明人： Jonas Malmberg , Anders Kullman , Fredrik Wahledow , Henrik Borgengren , Magnus Karlsson , Oscar Persson
CPC分类号： H02J1/08 , G06F1/26 , G06F1/3253 , H02M3/157 , H02M3/158 , H02M2001/007 , H02M2001/008 , Y02D10/151
摘要： To reduce power loss in an intermediate bus architecture power system, embodiments of the present invention provide an intermediate bus converter which converts an input voltage to an intermediate bus voltage using a converting unit; receives a signal indicative of an output of a converting unit; determines an intermediate bus voltage to reduce power loss in dependence upon the signal indicative of an output of the converting unit; generates a control signal to control the converting unit to convert the input voltage to the determined intermediate bus voltage; and generates an intermediate bus voltage in dependence upon the control signal.
摘要翻译： 为了减少中间总线架构电力系统的功率损耗，本发明的实施例提供一种中间总线转换器，其使用转换单元将输入电压转换为中间总线电压; 接收指示转换单元的输出的信号; 根据指示转换单元的输出的信号，确定中间总线电压以减少功率损耗; 产生控制信号以控制转换单元将输入电压转换成所确定的中间总线电压; 并根据控制信号产生中间总线电压。
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8.发明申请公开(公告)号：US20130343094A1
公开(公告)日：2013-12-26
申请号：US14002955
申请日：2011-03-03
申请人： Magnus Karlsson , Anders Kullman , Fredrik Wahledow , Henrik Borgengren , Jonas Malmberg , Oscar Persson
发明人： Magnus Karlsson , Anders Kullman , Fredrik Wahledow , Henrik Borgengren , Jonas Malmberg , Oscar Persson
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/337 , H02M2001/0022
摘要： A control circuit for a switched mode power supply (SMPS) has an input voltage reference voltage generator arranged to receive a signal indicative of an input voltage of the SMPS and is arranged to generate a reference signal directly proportional to the input voltage. An error signal generator of the control circuit is arranged to receive a signal indicative of an output voltage of the SMPS and arranged to generate an error signal based on the reference signal generated by the input reference voltage generator and based on the output voltage of the SMPS. A duty cycle control signal generator of the control circuit is arranged to generate a control signal, to control the duty cycle of the SMPS, in dependence upon the error signal.
摘要翻译： 用于开关模式电源（SMPS）的控制电路具有输入电压参考电压发生器，其布置成接收指示SMPS的输入电压的信号，并且被布置为产生与输入电压成正比的参考信号。 控制电路的误差信号发生器被布置成接收指示SMPS的输出电压的信号，并被布置成基于由输入参考电压发生器产生的参考信号并基于SMPS的输出电压产生误差信号 。 控制电路的占空比控制信号发生器被配置为产生控制信号，以根据误差信号来控制SMPS的占空比。
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9.发明申请公开(公告)号：US20150029760A1
公开(公告)日：2015-01-29
申请号：US14379098
申请日：2012-02-17
CPC分类号： H02M3/33546 , H02M1/08 , H02M1/14 , H02M2001/0012 , H02M2001/0016 , H02M2001/0022
摘要： A digital control unit generates a control signal to control a duty cycle of a switched mode power supply such that a faster response to an input voltage transient is achieved. The digital control unit comprises a feedback compensator, a feed forward compensator, a transient detector, and a controller. The transient detector receives a signal indicative of the input voltage of the switched mode power supply and detects transients on the received signal. The feedback compensator receives a signal indicative of the output voltage of the switched mode power supply and adjusts the control signal. The feed forward compensator receives a signal indicative of the input voltage of the switched mode power supply, performs a relatively fast, but coarse, adjustment of the control signal, and then performs a more accurate, but relatively slow, adjustment of the control signal.
摘要翻译： 数字控制单元生成控制信号以控制开关模式电源的占空比，从而实现对输入电压瞬变的更快的响应。 数字控制单元包括反馈补偿器，前馈补偿器，瞬态检测器和控制器。 瞬态检测器接收指示开关模式电源的输入电压的信号，并检测接收信号的瞬变。 反馈补偿器接收指示开关模式电源的输出电压的信号并调节控制信号。 前馈补偿器接收表示开关模式电源的输入电压的信号，对控制信号执行相对较快但粗略的调整，然后对控制信号进行更精确但相对较慢的调整。
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10.发明授权公开(公告)号：US09397578B2
公开(公告)日：2016-07-19
申请号：US14379098
申请日：2012-02-17
CPC分类号： H02M3/33546 , H02M1/08 , H02M1/14 , H02M2001/0012 , H02M2001/0016 , H02M2001/0022
摘要： A digital control unit generates a control signal to control a duty cycle of a switched mode power supply such that a faster response to an input voltage transient is achieved. The digital control unit comprises a feedback compensator, a feed forward compensator, a transient detector, and a controller. The transient detector receives a signal indicative of the input voltage of the switched mode power supply and detects transients on the received signal. The feedback compensator receives a signal indicative of the output voltage of the switched mode power supply and adjusts the control signal. The feed forward compensator receives a signal indicative of the input voltage of the switched mode power supply, performs a relatively fast, but coarse, adjustment of the control signal, and then performs a more accurate, but relatively slow, adjustment of the control signal.
摘要翻译： 数字控制单元生成控制信号以控制开关模式电源的占空比，从而实现对输入电压瞬变的更快的响应。 数字控制单元包括反馈补偿器，前馈补偿器，瞬态检测器和控制器。 瞬态检测器接收指示开关模式电源的输入电压的信号，并检测接收信号的瞬变。 反馈补偿器接收指示开关模式电源的输出电压的信号并调节控制信号。 前馈补偿器接收表示开关模式电源的输入电压的信号，对控制信号执行相对较快但粗略的调整，然后对控制信号进行更精确但相对较慢的调整。
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