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公开(公告)号：US09819277B2
公开(公告)日：2017-11-14
申请号：US15030419
申请日：2015-07-09
发明人： Magnus Karlsson , Oscar Persson
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02J13/0082 , H02M3/335 , H02M3/33507
摘要： An isolated buck converter for converting an analog input voltage to an analog output voltage is capable of transferring digital data from the primary side to the secondary side. The converter comprises, on a primary side, a primary winding and a non-isolated buck connected in series, and a pair of switches switchable between a forward phase and a fly-buck phase. A secondary winding, on a secondary side, is inductively coupled to the primary winding, and a first capacitive element is connected over the secondary winding. The output voltage is achieved as the voltage over the first capacitive element. Further, the converter comprises, at the secondary side, supplementary circuitry by aid of which digital data can be transferred from the primary side to the secondary side.
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公开(公告)号：US09576717B2
公开(公告)日：2017-02-21
申请号：US13810288
申请日：2012-12-19
发明人： Oscar Persson , Magnus Karlsson
CPC分类号： H01F27/2804 , H01F27/323 , H01F41/041 , Y10T29/4902
摘要： A multi-layered printed circuit board, PCB, includes first windings for a first side of a planar magnetic transformer and second windings for a second side of the planar magnetic transformer. The PCB further includes conductive layers configured as the first windings, conductive layers configured as the second windings, and layers of an isolation material. Each layer of the isolation material is arranged between two conductive layers to provide electrical isolation between the two conductive layers. A group of two or more adjacent conductive layers are all conductive layers of the first windings and are all arranged between two conductive layers of the second windings. The thickness of the isolation material between the group of adjacent conductive layers of the first windings is less than the thickness of the isolation material between a conductive layer of the second windings and a conductive layer of the first windings.
摘要翻译： 多层印刷电路板PCB包括用于平面磁变压器的第一侧的第一绕组和用于平面磁变压器的第二侧的第二绕组。 PCB还包括被配置为第一绕组的导电层，被配置为第二绕组的导电层和隔离材料的层。 隔离材料的每个层被布置在两个导电层之间以提供两个导电层之间的电隔离。 一组两个或更多个相邻的导电层都是第一绕组的导电层，并且都布置在第二绕组的两个导电层之间。 第一绕组的相邻导电层组之间的隔离材料的厚度小于第二绕组的导电层与第一绕组的导电层之间的隔离材料的厚度。
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13.发明申请SWITCHED MODE POWER SUPPLY AND METHOD OF OPERATING A SWITCHED MODE POWER SUPPLY 审中-公开开关电源和操作开关电源的方法公开(公告)号：US20160261193A1
公开(公告)日：2016-09-08
申请号：US14432149
申请日：2014-06-18
发明人： Magnus Karlsson , Oscar Persson , Fredrik Wahledow
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/33569 , H02M3/337 , H02M2001/0022
摘要： A switched mode power supply comprises a switched mode converter and a controller for controlling the switched mode converter, wherein the switched mode converter is provided for converting an input voltage to an output voltage and includes, on a primary side, a primary winding and a controllable switch based circuitry connecting the input voltage over the primary winding; and, on a secondary side, a secondary winding coupled to the primary winding, and a capacitive element connected over the secondary winding, wherein the output voltage is obtained as the voltage over the capacitive element. The primary winding comprises a first winding portion and at least one further winding portion. The switch based circuitry comprises controllable switches capable of switching between a first operation state wherein the input voltage is connected only over the first winding portion and at least a second operation state wherein the input voltage is connected over the first and the at least one further winding portions, thereby enabling switching between two different transformer ratios.
摘要翻译： 开关模式电源包括开关模式转换器和用于控制开关模式转换器的控制器，其中提供开关模式转换器用于将输入电压转换为输出电压，并且在初级侧包括初级绕组和可控制的 基于开关的电路连接初级绕组上的输入电压; 并且在次级侧，耦合到初级绕组的次级绕组和连接在次级绕组上的电容元件，其中输出电压被获得作为电容元件上的电压。 初级绕组包括第一绕组部分和至少一个另外的绕组部分。 基于开关的电路包括能够在第一操作状态（其中输入电压仅连接在第一绕组部分上）和至少第二操作状态之间切换的可控开关，其中输入电压连接在第一和至少一个另外的绕组 从而能够在两个不同的变压器比之间进行切换。
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公开(公告)号：US09362832B2
公开(公告)日：2016-06-07
申请号：US14188806
申请日：2014-02-25
CPC分类号： H02M3/33507 , H02M1/32 , H02M3/33523 , H02M2001/008
摘要： An intermediate bus architecture power supply system including an output voltage feedback-regulated, isolated first stage switching voltage converter (SVC) such as an intermediate bus converter, connected via an intermediate voltage bus (IVB) to at least one second stage DC-to-DC voltage converter. The first stage SVC is configured to adjust its switching duty cycle to compensate for voltage fluctuations on the IVB. The voltage regulation mechanism of the first stage SVC may thus suppress oscillations in the IVB voltage which originate from the first stage SVC's input or from fluctuations in the system's load current, and consequently reduce electromagnetic interference as well as the amplitude of voltage and current fluctuations on the IVB.
摘要翻译： 一种中间总线架构电源系统，包括经由中间电压总线（IVB）连接到至少一个第二级DC-DC的输出电压反馈调节的隔离的第一级开关电压转换器（SVC），例如中间总线转换器， 直流电压转换器。 第一级SVC被配置为调整其开关占空比以补偿IVB上的电压波动。 因此，第一级SVC的电压调节机构可以抑制来自第一级SVC的输入的IVB电压或系统负载电流的波动的振荡，并且因此降低电磁干扰以及电压和电流波动的幅度 IVB。
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公开(公告)号：US20150333640A1
公开(公告)日：2015-11-19
申请号：US14235931
申请日：2013-02-28
发明人： Oscar Persson , Mikael Appelberg , Magnus Karlsson
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M1/08 , H02M3/33538 , H02M3/33576 , H02M3/33592 , H03K2017/307 , Y02B70/1475
摘要： A switched mode power supply (400), comprising a transformer (410) having a primary winding (410-1), a transformer core (410-3) configured to store energy transferred thereto from the primary winding (410-1) during operation, and a secondary winding (410-2) having a first terminal (T1) and a second terminal (T2). The switched mode power supply also has a primary side circuit (Q1, Q2, C1) arranged to generate voltage pulses and thereby to drive the primary winding (410-1) of the transformer (410), and a secondary side circuit comprising a rectification circuit connected to the secondary winding (410-2) at the first and second terminals (T1, T2). The rectification circuit is arranged such that during a forward phase of operation of the switched mode power supply, in which the primary winding (410-1) is driven by the primary side circuit to magnetise, and store energy in, the transformer core (410-3), a current induced to flow in the secondary winding (410-2) from the second terminal (T2) to the first terminal (T1) is output by the rectification circuit. The rectification circuit is further arranged such that during a fly-back phase of operation of the switched mode power supply, in which the magnetisation of the transformer core (410-3) is reset, a current induced to flow in the secondary winding from the first terminal (T1) to the second terminal (T2) of the secondary winding (410-2) is output by the rectification circuit so that energy stored in the transformer (410) during the forward phase of operation is output by the rectification circuit.
摘要翻译： 一种开关模式电源（400），包括具有初级绕组（410-1）的变压器（410），被配置为在操作期间存储从初级绕组（410-1）传递到其上的能量的变压器铁心（410-3） 以及具有第一端子（T1）和第二端子（T2）的次级绕组（410-2）。 开关模式电源还具有被配置为产生电压脉冲从而驱动变压器（410）的初级绕组（410-1）的初级侧电路（Q1，Q2，C1），以及辅助侧电路，其包括整流 电路连接到第一和第二端子（T1，T2）处的次级绕组（410-2）。 整流电路布置成使得在开关模式电源的正向运行阶段中，初级绕组（410-1）由初级侧电路驱动以磁化，并将能量存储在变压器铁芯（410）中 -3）时，通过整流电路输出从次级绕组（410-2）感应到从第二端子（T2）流向第一端子（T1）的电流。 整流电路进一步被布置成使得在其中复位变压器铁芯（410-3）的磁化的开关模式电源的操作的回扫阶段期间，引起在次级绕组中从 由整流电路输出到次级绕组（410-2）的第二端子（T2）的第一端子（T1），从而在正向运行期间存储在变压器（410）中的能量由整流电路输出。
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公开(公告)号：US09621052B2
公开(公告)日：2017-04-11
申请号：US14430933
申请日：2014-05-15
发明人： Magnus Karlsson , Oscar Persson
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/33523
摘要： A switched mode power supply comprises a switched mode converter (12) and a controller for controlling the switched mode converter, wherein the switched mode converter is provided for converting an input voltage (Vin) to an output voltage (Vout) and includes, on a primary side, a primary winding (X1) and a controllable switch based circuitry (31) connecting the input voltage over the primary winding; and, on a secondary side, a secondary winding (X2) coupled to the primary winding, and a capacitive element (C) connected over the secondary winding, wherein the output voltage is obtained as the voltage over the capacitive element. The primary winding comprises a first winding portion (np1) and at least one further winding portion (np2); and the switch based circuitry comprises controllable switches (Q11, Q41, Q12, Q42, Q21, Q31) capable of switching between a first operation state wherein the input voltage is connected only over the first winding portion and at least a second operation state wherein the input voltage is connected over the first and the at least one further winding portions, thereby enabling switching between two different transformer ratios (n1, n2).
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17.发明授权Control circuit and a method for an energy based pulse skipping mode in a DC/DC converter 有权控制电路和DC / DC转换器中基于能量的脉冲跳跃模式的方法公开(公告)号：US09490707B2
公开(公告)日：2016-11-08
申请号：US14396895
申请日：2013-11-26
发明人： Magnus Karlsson , Oscar Persson
CPC分类号： H02M3/33507 , H02M3/33576 , H02M2001/0035 , Y02B70/16
摘要： A control circuit for a switched mode power supply and a related method are provided for controlling switching elements in a power train of a switched mode power supply. The control circuit comprises a mode controller to monitor the output current to determine whether the output current exceeds a current threshold. The mode controller controls the switching controller to generate the switch control signals. When the current exceeds the current threshold, the power train operates in a continuous conduction mode, and upon determining that the output current has fallen to or below the current threshold, the operation of the power train is changed from the continuous conduction mode to a pulse skipping mode. The pulse skipping mode is entered from the continuous conduction mode and involves determining the amount of energy stored in a secondary circuit of the power train.
摘要翻译： 提供了一种用于开关模式电源的控制电路和相关方法，用于控制开关模式电源的传动系中的开关元件。 控制电路包括模式控制器，用于监视输出电流以确定输出电流是否超过电流阈值。 模式控制器控制开关控制器产生开关控制信号。 当电流超过电流阈值时，动力传动系统工作在连续传导模式，并且在确定输出电流已经下降到或低于当前阈值之后，动力传动系的运行从连续传导模式变为脉冲 跳过模式 从连续导通模式输入脉冲跳跃模式，并且涉及确定存储在动力传动系的次级回路中的能量的量。
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公开(公告)号：US20150244270A1
公开(公告)日：2015-08-27
申请号：US14188806
申请日：2014-02-25
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/32 , H02M3/33523 , H02M2001/008
摘要： An intermediate bus architecture power supply system including an output voltage feedback-regulated, isolated first stage switching voltage converter (SVC) such as an intermediate bus converter, connected via an intermediate voltage bus (IVB) to at least one second stage DC-to-DC voltage converter. The first stage SVC is configured to adjust its switching duty cycle to compensate for voltage fluctuations on the IVB. The voltage regulation mechanism of the first stage SVC may thus suppress oscillations in the IVB voltage which originate from the first stage SVC's input or from fluctuations in the system's load current, and consequently reduce electromagnetic interference as well as the amplitude of voltage and current fluctuations on the IVB.
摘要翻译： 一种中间总线架构电源系统，包括经由中间电压总线（IVB）连接到至少一个第二级DC-DC的输出电压反馈调节的隔离的第一级开关电压转换器（SVC），例如中间总线转换器， 直流电压转换器。 第一级SVC被配置为调整其开关占空比以补偿IVB上的电压波动。 因此，第一级SVC的电压调节机构可以抑制来自第一级SVC的输入的IVB电压或系统负载电流的波动的振荡，并且因此降低电磁干扰以及电压和电流波动的幅度 IVB。
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公开(公告)号：US20140167901A1
公开(公告)日：2014-06-19
申请号：US13810288
申请日：2012-12-19
发明人： Oscar Persson , Magnus Karlsson
CPC分类号： H01F27/2804 , H01F27/323 , H01F41/041 , Y10T29/4902
摘要： A multi-layered printed circuit board, PCB, includes first windings for a first side of a planar magnetic transformer and second windings for a second side of the planar magnetic transformer. The PCB further includes conductive layers configured as the first windings, conductive layers configured as the second windings, and layers of an isolation material. Each layer of the isolation material is arranged between two conductive layers to provide electrical isolation between the two conductive layers. A group of two or more adjacent conductive layers are all conductive layers of the first windings and are all arranged between two conductive layers of the second windings. The thickness of the isolation material between the group of adjacent conductive layers of the first windings is less than the thickness of the isolation material between a conductive layer of the second windings and a conductive layer of the first windings.
摘要翻译： 多层印刷电路板PCB包括用于平面磁变压器的第一侧的第一绕组和用于平面磁变压器的第二侧的第二绕组。 PCB还包括被配置为第一绕组的导电层，被配置为第二绕组的导电层和隔离材料的层。 隔离材料的每个层被布置在两个导电层之间以提供两个导电层之间的电隔离。 一组两个或更多个相邻的导电层都是第一绕组的导电层，并且都布置在第二绕组的两个导电层之间。 第一绕组的相邻导电层组之间的隔离材料的厚度小于第二绕组的导电层与第一绕组的导电层之间的隔离材料的厚度。
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