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1. 发明申请

US20100128498A1 SWITCH MODE PULSE WIDTH MODULATED DC-DC CONVERTER WITH MULTIPLE POWER TRANSFORMERS 有权
公开(公告)号：US20100128498A1
公开(公告)日：2010-05-27
申请号：US12452796
申请日：2008-07-18
申请人： Morten Nymand
发明人： Morten Nymand
IPC分类号： H02M3/335
CPC分类号： H02M3/335
摘要： A switch mode pulse width modulated DC-DC power converter comprises at least one first electronic circuit on a input side (1) and a second electronic circuit on a output side (2). The input side (1) and the output side (2) are coupled via at least two power transformers (T1, T2). Each power transformer (T1, T2) comprises a first winding (T1a, T2a) arranged in a input side converter stage (3, 4) on the input side (1) and a second winding (T1b, T2b) arranged in a output side converter stage (5) on the output side (2), and each of the windings (T1a, T1b, T2a, T2b) has a first end and a second end. The first electronic circuit comprises terminals (A0, A1) for connecting a source or a load, at least one energy storage inductor (L) coupled in series with at least one of the first windings (T1a, T2a) of the power transformers (T1, T2), and for each power transformer (T1, T2), an arrangement of switches being adapted to switch the current through the first winding (T1a, T2a) between a first ON-state, a first OFF-state, a second ON-state with a polarity opposite to the first ON-state, and a second OFF-state, and/or being adapted to provide rectified current to the terminals (A0, A1) wherein the at least one energy storage inductor (L) is arranged so as to be charged, when all switches of the switching arrangements are conducting, and the current through the at least one first winding coupled in series to the energy storage inductor is in an OFF-state. The second electronic circuit comprises terminals (B0, B1) for connecting a load or a source, a single arrangement of switches being adapted to switch the current through the second windings (T1b, T2b) of the power transformers (T1, T2) between a first ON-state, a first OFF-state, a second ON-state with a polarity opposite to the first ON-state, and a second OFF-state, and/or being adapted to provide rectified current to the terminals (B0, B1). The second windings (T1b, T2b) of the power transformers (T1, T2) are connected in series and coupled via the single arrangement of switches of the second circuit to the terminals (B0, B1) of the output side.

2. 发明授权

US08743575B2 Switch mode pulse width modulated DC-DC converter with multiple power transformers 有权
标题翻译：具有多个电源变压器的开关模式脉宽调制DC-DC转换器
公开(公告)号：US08743575B2
公开(公告)日：2014-06-03
申请号：US12452796
申请日：2008-07-18
申请人： Morten Nymand
发明人： Morten Nymand
IPC分类号： H02M3/335
CPC分类号： H02M3/335
摘要： A switch mode pulse width modulated DC-DC power converter having at least one first electronic circuit on an input side and a second electronic circuit on an output side. The first electronic circuit has terminals connecting to a source or load and at least one storage inductor, coupled in series with at least one power transformer winding. For each transformer, an arrangement of switches is adapted to switch the current through the first winding between first and second, ON- and OFF-states. At least one energy storage inductor is charged when all switches of the switching arrangements are conducting and the current through the first winding is in an OFF-state. The second electronic circuit has connecting terminals and a single arrangement of switches to switch the current through the second transformer winding, between the first and second ON- and OFF-states.
摘要翻译：一种开关模式脉宽调制DC-DC功率转换器，其在输入侧具有至少一个第一电子电路，在输出侧具有第二电子电路。第一电子电路具有连接到源或负载的端子以及与至少一个电力变压器绕组串联耦合的至少一个存储电感器。对于每个变压器，开关的布置适于在第一和第二，ON和OFF状态之间切换通过第一绕组的电流。当开关装置的所有开关导通并且通过第一绕组的电流处于断开状态时，至少一个储能电感器被充电。第二电子电路具有连接端子和单个布置的开关，以在第一和第二导通和截止状态之间切换通过第二变压器绕组的电流。

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