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公开(公告)号：US20150180343A1
公开(公告)日：2015-06-25
申请号：US14414861
申请日：2012-07-27
申请人： Oscar Persson , Xuefeng Yang , Magnus Karlsson
发明人： Oscar Persson , Xuefeng Yang , Magnus Karlsson
IPC分类号： H02M3/158
CPC分类号： H02M3/1588 , H02M1/36 , H02M3/1584 , H02M3/285 , H02M3/33592 , Y02B70/1466 , Y02B70/1475
摘要： A method and a control unit for changing a working mode of a synchronous rectifier. The synchronous rectifier comprises at least one controllable switch having a diode in parallell thereof. The synchronous rectifier is operatively connected to a reactive circuit, and is arranged to receive at least one control signal at a control terminal, for controlling at least one controllable switch. The at least one control signal is pulse-width modulated with a defined duty-cycle. The method comprises adjusting the pulse-width of the at least one control signal between zero percent duty-cycle and the defined duty-cycle at a frequency above a cut-off frequency of the reactive circuit. Thereby, reducing the effect of a forward voltage drop over said diode in the synchronous rectifier.
摘要翻译： 一种用于改变同步整流器的工作模式的方法和控制单元。 同步整流器包括至少一个具有并联二极管的可控开关。 同步整流器可操作地连接到无功电路，并被布置成在控制端接收至少一个控制信号，用于控制至少一个可控开关。 所述至少一个控制信号以限定的占空比进行脉冲宽度调制。 该方法包括以高于无功电路的截止频率的频率调整零百分比占空比与限定占空比之间的至少一个控制信号的脉冲宽度。 从而减少同步整流器中所有二极管的正向压降的影响。
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公开(公告)号：US09543847B2
公开(公告)日：2017-01-10
申请号：US14413749
申请日：2012-07-13
申请人： Magnus Karlsson , Oscar Persson
发明人： Magnus Karlsson , Oscar Persson
CPC分类号： H02M3/33546 , H02M3/157 , H02M3/158 , H02M3/335 , H02M3/33592 , H02M3/3376 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： A control circuit operable to control the switching of switching elements in a switched mode power supply. The control circuit comprises a switching control signal generator operable to generate control signals for switching the switching elements such that the switched mode power supply converts an input voltage (Vin) to an output voltage Vout). The control circuit further comprises an operation mode setting module which is operable to receive a signal (I) indicative of a current flowing to a load that is connected to an output of the switched mode power supply, and operable to cause the switching control signal generator to generate the control signals so as to operate the switched mode power supply in a continuous conduction mode or a pulse skipping mode in dependence upon the current.
摘要翻译： 控制电路，其可操作以控制开关模式电源中的开关元件的切换。 控制电路包括开关控制信号发生器，其可操作以产生用于切换开关元件的控制信号，使得开关模式电源将输入电压（Vin）转换为输出电压Vout）。 控制电路还包括操作模式设置模块，其可操作以接收指示流向连接到开关模式电源的输出的负载的电流的信号（I），并且可操作以使开关控制信号发生器 以产生控制信号，以便根据电流在连续导通模式或脉冲跳跃模式下操作开关模式电源。
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3.发明授权公开(公告)号：US09391531B2
公开(公告)日：2016-07-12
申请号：US14375394
申请日：2012-01-30
申请人： Magnus Karlsson , Oscar Persson
发明人： Magnus Karlsson , Oscar Persson
CPC分类号： H02M3/33592 , H02M3/156 , H02M3/33507 , H02M2001/0003 , H02M2001/0022 , H02M2001/0025
摘要： A control circuit, that controls the duty cycle of a switched mode power supply, comprises a reference voltage generator that, responsive to the input voltage exceeding a threshold value, generates a predetermined reference signal. Responsive to the input voltage not exceeding the threshold value, the reference voltage generator receives a signal indicative of an input voltage of the switched mode power supply and generates a variable reference signal dependent upon the input voltage. The control circuit further comprises an error signal generator that receives a signal indicative of an output voltage of the power supply and generates an error signal based on the reference signal generated by the reference voltage generator and based on the output voltage. The control circuit also includes a duty cycle control signal generator that generates the control signal to control the duty cycle of the power supply in dependence upon the error signal.
摘要翻译： 控制开关模式电源的占空比的控制电路包括参考电压发生器，其响应于超过阈值的输入电压产生预定的参考信号。 响应于不超过阈值的输入电压，参考电压发生器接收指示开关模式电源的输入电压的信号，并根据输入电压产生可变参考信号。 控制电路还包括误差信号发生器，其接收指示电源的输出电压的信号，并且基于由参考电压发生器产生的参考信号并基于输出电压产生误差信号。 控制电路还包括占空比控制信号发生器，该发生器根据误差信号产生控制信号以控制电源的占空比。
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4.发明申请公开(公告)号：US20150003116A1
公开(公告)日：2015-01-01
申请号：US14377756
申请日：2012-02-09
申请人： Magnus Karlsson , Mikael Appelberg , Oscar Persson
发明人： Magnus Karlsson , Mikael Appelberg , Oscar Persson
CPC分类号： H02M1/40 , H02M3/33538 , H02M3/33592 , H02M3/3378 , Y02B70/1475
摘要： A control circuit generates a control signal to control a duty cycle of a switched mode power supply such that the magnetic flux density in the transformer is balanced, thereby preventing saturation of the transformer core. This permits the use of unsymmetrical duty cycles within the switch cycle. The control circuit comprises a flux density calculator and a regulator. The flux density regulator receives a signal indicative of the input voltage of the switched mode power supply and a feedback signal comprising the generated control signal, and it generates therefrom an average flux density signal. The regulator receives the generated average flux density signal and a signal indicative of the output voltage of the switched mode power supply, and generates the control signal in dependence upon the average flux density signal, the reference flux density signal, the signal indicative of the output voltage and a reference voltage signal.
摘要翻译： 控制电路产生控制信号以控制开关模式电源的占空比，使得变压器中的磁通密度平衡，从而防止变压器铁芯的饱和。 这允许在开关周期内使用不对称的占空比。 控制电路包括磁通密度计算器和调节器。 通量密度调节器接收指示开关模式电源的输入电压的信号和包括所生成的控制信号的反馈信号，并且由此产生平均磁通密度信号。 调节器接收所生成的平均通量密度信号和指示开关模式电源的输出电压的信号，并根据平均通量密度信号，参考通量密度信号，表示输出的信号产生控制信号 电压和参考电压信号。
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公开(公告)号：US20130155727A1
公开(公告)日：2013-06-20
申请号：US13820329
申请日：2010-09-02
申请人： Magnus Karlsson , Jonas Malmberg , Oscar Persson
发明人： Magnus Karlsson , Jonas Malmberg , Oscar Persson
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M3/156 , H02M3/335 , H02M3/33592 , H02M2001/0048 , Y02B70/1475 , Y02B70/1491
摘要： An isolated switched mode power supply comprises a transformer, with primary and secondary windings, and a rectification network connected to the secondary winding. The rectification network and the transformer are arranged such that, during a free-wheeling period of operation of the switched mode power supply, a magnetic flux from a first portion of a secondary winding of the transformer substantially cancels a magnetic flux from a second portion of the secondary winding between the first and second portions of the secondary winding. Additionally, a secondary side circuit connected to the secondary winding comprises a switching device, which is connected to a centre-tap, provided between the first and second portions of the secondary winding, and an output of the rectification network so as to conduct at least a part of a free-wheeling current flowing in the secondary side circuit during the free-wheeling period.
摘要翻译： 隔离开关电源包括具有初级和次级绕组的变压器以及连接到次级绕组的整流网络。 整流网络和变压器布置成使得在开关模式电源的续流周期期间，来自变压器的次级绕组的第一部分的磁通量基本上从第二部分的第二部分抵消了磁通量 次级绕组的第一和第二部分之间的次级绕组。 另外，连接到次级绕组的次级侧电路包括开关装置，其连接到设置在次级绕组的第一和第二部分之间的中心抽头和整流网络的输出端，以便至少导通 在续流期间在次级侧回路中流动的续流电流的一部分。
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6.发明授权公开(公告)号：US09584013B2
公开(公告)日：2017-02-28
申请号：US14382089
申请日：2012-03-01
申请人： Magnus Karlsson , Oscar Persson
发明人： Magnus Karlsson , Oscar Persson
摘要： The present disclosure relates to methods, systems and a module for operating a power converter module, the power converter module comprises a voltage source, a remote control terminal configured to be connected to a voltage potential for remote control of the power converter module. A voltage converter is configured to send an alarm signal, determine the voltage potential of the remote control terminal, and control an output voltage of the voltage converter at an output terminal of the power converter module based on the determined voltage potential of the remote control terminal. An alarm branch is configured to change the voltage potential of the remote control terminal by a voltage source in response to an alarm signal from the voltage converter when the remote control terminal is connected to a voltage potential, thereby causing the voltage converter to control the output voltage at the output terminal.
摘要翻译： 本公开涉及用于操作功率转换器模块的方法，系统和模块，功率转换器模块包括电压源，远程控制终端被配置为连接到用于远程控制功率转换器模块的电压电位。 电压转换器被配置为发送警报信号，确定遥控终端的电压电位，并且基于确定的遥控终端的电压电压来控制电力转换器模块的输出端子处的电压转换器的输出电压 。 报警分支被配置为当远程控制终端连接到电压电位时，响应于来自电压转换器的报警信号，通过电压源改变遥控终端的电压电位，从而使电压转换器控制输出 输出端子电压。
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公开(公告)号：US09515543B2
公开(公告)日：2016-12-06
申请号：US14357715
申请日：2011-12-09
申请人： Oscar Persson , Magnus Karlsson , Jonas Malmberg
发明人： Oscar Persson , Magnus Karlsson , Jonas Malmberg
CPC分类号： H02M1/00 , G05F1/56 , H02M1/32 , H02M2001/0003
摘要： The present disclosure relates to methods, a system and a module for operating a power converter module. The power converter module comprises a voltage converter, an output circuitry, and a processing circuitry operable for controlling the voltage converter. One method comprises transmitting a first status signal representing operating parameters of the voltage converter to the processing circuitry. Determining whether the first status signal of the voltage converter is acceptable. The method also comprises transmitting a second status signal representing the operating parameters of the output circuitry to the processing circuitry. The method also comprises determining if the second status signal is above a predetermined threshold value. When the second status signal is above said predetermined threshold value and the status of the voltage converter is acceptable, entering a peak output mode operating the voltage converter at maximum power dissipation.
摘要翻译： 本公开涉及用于操作功率转换器模块的方法，系统和模块。 电力转换器模块包括电压转换器，输出电路和可操作用于控制电压转换器的处理电路。 一种方法包括将表示电压转换器的操作参数的第一状态信号发送到处理电路。 确定电压转换器的第一状态信号是否可接受。 该方法还包括将表示输出电路的操作参数的第二状态信号发送到处理电路。 该方法还包括确定第二状态信号是否高于预定阈值。 当第二状态信号高于所述预定阈值并且电压转换器的状态是可接受的时，输入在最大功率耗散下操作电压转换器的峰值输出模式。
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公开(公告)号：US09124190B2
公开(公告)日：2015-09-01
申请号：US13820329
申请日：2010-09-02
申请人： Magnus Karlsson , Jonas Malmberg , Oscar Persson
发明人： Magnus Karlsson , Jonas Malmberg , Oscar Persson
CPC分类号： H02M3/33546 , H02M3/156 , H02M3/335 , H02M3/33592 , H02M2001/0048 , Y02B70/1475 , Y02B70/1491
摘要： An isolated switched mode power supply comprises a transformer, with primary and secondary windings, and a rectification network connected to the secondary winding. The rectification network and the transformer are arranged such that, during a free-wheeling period of operation of the switched mode power supply, a magnetic flux from a first portion of a secondary winding of the transformer substantially cancels a magnetic flux from a second portion of the secondary winding between the first and second portions of the secondary winding. Additionally, a secondary side circuit connected to the secondary winding comprises a switching device, which is connected to a center-tap, provided between the first and second portions of the secondary winding, and an output of the rectification network so as to conduct at least a part of a free-wheeling current flowing in the secondary side circuit during the free-wheeling period.
摘要翻译： 隔离开关电源包括具有初级和次级绕组的变压器以及连接到次级绕组的整流网络。 整流网络和变压器布置成使得在开关模式电源的续流周期期间，来自变压器的次级绕组的第一部分的磁通量基本上从第二部分的第二部分抵消了磁通量 次级绕组的第一和第二部分之间的次级绕组。 另外，连接到次级绕组的次级侧电路包括开关装置，其连接到设置在次级绕组的第一和第二部分之间的中心抽头和整流网络的输出端，以便至少导通 在续流期间在次级侧回路中流动的续流电流的一部分。
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9.发明申请公开(公告)号：US20150109825A1
公开(公告)日：2015-04-23
申请号：US14395323
申请日：2012-04-20
申请人： Magnus Karlsson , Oscar Persson
发明人： Magnus Karlsson , Oscar Persson
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M3/33507 , H02M2001/0022 , H02M2001/008
摘要： A control circuit (200) operable to generate a control signal (D) to control the duty cycle of a switched mode power supply (100). The control circuit (200) comprises a reference signal generator (210) operable to receive a signal indicative of an input voltage (Vin) of the switched mode power supply (100) and generate a reference signal (VR) that is a function of the input voltage (Vin), and an offset reference signal generator (220) operable to generate an offset reference signal (VR—offset) “by’ combining the reference signal (VR) with an offset signal (Voffset), the offset signal (Voffset) being independent of the input voltage (Vin), The control circuit (200) further comprises an error signal, generator (230) arranged to receive a signal indicative of an output voltage (Vout) of the switched mode power supply (100) and operable to generate an error signal (VE) based on the offset reference signal (VR—offset) and based on the output voltage (Vout). The control circuit (200) also includes a duty cycle control signal generator (250) operable to generate the control signal (D) to control the duty cycle of the switched mode power supply (100) in dependence upon the error signal (VE),
摘要翻译： 一种可操作以产生控制信号（D）以控制开关模式电源（100）的占空比的控制电路（200）。 控制电路（200）包括参考信号发生器（210），其可操作以接收指示开关模式电源（100）的输入电压（Vin）的信号，并产生参考信号（VR） 输入电压（Vin）和偏移参考信号发生器（220），其通过将参考信号（VR）与偏移信号（Voffset）组合来产生偏移参考信号（VR-偏移），偏移信号（Voffset 控制电路（200）还包括误差信号，发生器（230），其布置成接收指示开关模式电源（100）的输出电压（Vout）的信号，以及 可操作以基于偏移参考信号（VR-偏移）并基于输出电压（Vout）产生误差信号（VE）。 控制电路（200）还包括占空比控制信号发生器（250），用于产生控制信号（D），以根据误差信号（VE）控制开关模式电源（100）的占空比，
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公开(公告)号：US20150028843A1
公开(公告)日：2015-01-29
申请号：US14382089
申请日：2012-03-01
申请人： Magnus Karlsson , Oscar Persson
发明人： Magnus Karlsson , Oscar Persson
IPC分类号： H02M3/156
摘要： The present disclosure relates to methods, systems and a module for operating a power converter module, the power converter module comprises a voltage source, a remote control terminal configured to be connected to a voltage potential for remote control of the power converter module. A voltage converter is configured to send an alarm signal, determine the voltage potential of the remote control terminal, and control an output voltage of the voltage converter at an output terminal of the power converter module based on the determined voltage potential of the remote control terminal. An alarm branch is configured to change the voltage potential of the remote control terminal by a voltage source in response to an alarm signal from the voltage converter when the remote control terminal is connected to a voltage potential, thereby causing the voltage converter to control the output voltage at the output terminal.
摘要翻译： 本公开涉及用于操作功率转换器模块的方法，系统和模块，功率转换器模块包括电压源，远程控制终端被配置为连接到用于远程控制功率转换器模块的电压电位。 电压转换器被配置为发送警报信号，确定遥控终端的电压电位，并且基于确定的遥控终端的电压电压来控制电力转换器模块的输出端子处的电压转换器的输出电压 。 报警分支被配置为当远程控制终端连接到电压电位时，响应于来自电压转换器的报警信号，通过电压源改变遥控终端的电压电位，从而使电压转换器控制输出 输出端子电压。
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