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公开(公告)号：US07830685B2
公开(公告)日：2010-11-09
申请号：US11814680
申请日：2006-01-26
申请人： Bernhard Wagner , Bernd Freiheit-Jensen , Christian Vollertsen , Christoph Loef , Cornelius Paul , Frank Mueller , Klaus Hoffmann , Marc Klingelhoeller , Wolfgang Rexhausen
发明人： Bernhard Wagner , Bernd Freiheit-Jensen , Christian Vollertsen , Christoph Loef , Cornelius Paul , Frank Mueller , Klaus Hoffmann , Marc Klingelhoeller , Wolfgang Rexhausen
摘要： A power supply power supply (30) comprising a DC voltage supply, a control unit and a plurality of high voltage channels (33a-33d) is suggested. Each high voltage channel (33) includes an inverter (IKTV), a resonance circuit, a transformer (TR), and a rectifier (RECT). The resonance circuit cooperates with the inverter (INV). The inverter (INV) is formed by a first switching unit and a second switching unit whereby a voltage of a first polarity can be applied to the resonance circuit in a first switching state, whereas a voltage of a second polarity can be applied to the resonance circuit in a second switching state. The switching states can be switched by the control unit in such a manner that in a first mode of an operation for high output power, the output power can be adjusted by changing the switching frequency in the range of the resonance frequency. In a second mode of operation for low output power, the output power can be adjusted by changing the duration of the switching state at an essentially constant switching frequency.
摘要翻译： 建议包括直流电压源，控制单元和多个高压通道（33a-33d）的电源电源（30）。 每个高压通道（33）包括逆变器（IKTV），谐振电路，变压器（TR）和整流器（RECT）。 谐振电路与逆变器（INV）协作。 逆变器（INV）由第一开关单元和第二开关单元形成，从而第一极性的电压可以在第一开关状态下施加到谐振电路，而第二极性的电压可以应用于谐振 电路处于第二开关状态。 可以通过控制单元切换开关状态，使得在高输出功率的操作的第一模式中，可以通过改变谐振频率范围内的开关频率来调节输出功率。 在用于低输出功率的第二种操作模式中，可以通过以基本恒定的开关频率改变开关状态的持续时间来调节输出功率。
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公开(公告)号：US20080130323A1
公开(公告)日：2008-06-05
申请号：US11814680
申请日：2006-01-26
申请人： Bernhard Wagner , Bernd Freiheit-Jensen , Christian Vollertsen , Christoph Loef , Cornelius Paul , Frank Mueller , Klaus Hoffmann , Marc Klingelhoeller , Wolfgang Rexhausen
发明人： Bernhard Wagner , Bernd Freiheit-Jensen , Christian Vollertsen , Christoph Loef , Cornelius Paul , Frank Mueller , Klaus Hoffmann , Marc Klingelhoeller , Wolfgang Rexhausen
IPC分类号： H02M3/325
摘要： A power supply power supply (30) comprising a DC voltage supply, a control unit and a plurality of high voltage channels (33a-33d) is suggested. Each high voltage channel (33) includes an inverter (IKTV), a resonance circuit, a transformer (TR), and a rectifier (RECT). The resonance circuit cooperates with the inverter (INV). The inverter (INV) is formed by a first switching unit and a second switching unit whereby a voltage of a first polarity can be applied to the resonance circuit in a first switching state, whereas a voltage of a second polarity can be applied to the resonance circuit in a second switching state. The switching states can be switched by the control unit in such a manner that in a first mode of an operation for high output power, the output power can be adjusted by changing the switching frequency in the range of the resonance frequency. In a second mode of operation for low output power, the output power can be adjusted by changing the duration of the switching state at an essentially constant switching frequency.
摘要翻译： 建议包括DC电压源，控制单元和多个高压通道（33a至33d）的电源电源（30）。 每个高压通道（33）包括逆变器（IKTV），谐振电路，变压器（TR）和整流器（RECT）。 谐振电路与逆变器（INV）协作。 逆变器（INV）由第一开关单元和第二开关单元形成，从而第一极性的电压可以在第一开关状态下施加到谐振电路，而第二极性的电压可以应用于谐振 电路处于第二开关状态。 可以通过控制单元切换开关状态，使得在高输出功率的操作的第一模式中，可以通过改变谐振频率范围内的开关频率来调节输出功率。 在用于低输出功率的第二种操作模式中，可以通过以基本恒定的开关频率改变开关状态的持续时间来调节输出功率。
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3.发明授权Power supply unit including a pulse width modulated inverter, notably for an x-ray generator 失效电源单元包括一个脉冲宽度调制的逆变器，特别是用于x射线发生器
公开(公告)号：US6072856A
公开(公告)日：2000-06-06
申请号：US96197
申请日：1998-06-11
CPC分类号： H02M7/5387 , H02M3/337 , H02M2007/4815 , Y02B70/1441
摘要： The invention relates to a power supply unit which includes an inverter having output connections whereto the primary winding of a transformer is connected via a series capacitor. The rectified secondary voltage of this transformer is applied to a use which requires a high short-time power in a first mode of operation and a lower continuous power in a second mode of operation. The maximum permissible continuous power can be increased by means of an auxiliary inductance Lh which is active in the second mode of operation but inactive in the first mode of operation.
摘要翻译： 本发明涉及一种电源单元，其包括具有输出连接的变换器，其中变压器的初级绕组经由串联电容器连接。 该变压器的整流次级电压被应用于在第一操作模式中需要高短时功率和在第二操作模式中具有较低连续功率的用途。 最大允许连续功率可以通过辅助电感Lh来增加，该辅助电感Lh在第二操作模式中是活动的，但在第一操作模式中不起作用。
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4.发明授权公开(公告)号：US09083236B2
公开(公告)日：2015-07-14
申请号：US13148960
申请日：2010-02-10
CPC分类号： H02M3/156
摘要： The present invention refers to high-voltage generators, in particular to a step-down DC-to-DC converter circuit (buck converter) for supplying a DC output voltage Uout which may e.g. be used in a voltage supplying circuitry of an X-ray radio-graphic imaging system. According to the invention, the peak value of the buck converter's storage inductor current IL is controlled by a control circuit μC′ which regulates the on-time Δton of a semiconductor switch S in the feeding line of this storage inductor L. As a result thereof, an output current sensor CS, which is commonly used in today's buck converter designs, becomes redundant.
摘要翻译： 本发明涉及用于提供直流输出电压Uout的降压DC-DC转换器电路（降压转换器）的高压发生器。 用于X射线放射成像系统的电压供应电路。 根据本发明，降压转换器的存储电感器电流IL的峰值由控制电路μC'控制，控制电路μC'调节在该存储电感器L的馈电线路中的半导体开关S的导通时间和Dgr。吨。作为 其结果是，在当今的降压转换器设计中通常使用的输出电流传感器CS变得多余。
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5.发明申请OUTPUT CURRENT SENSING METHOD IN DISCONTINUOUS DC-TO-DC VOLTAGE CONVERTER 有权不连续直流 - 直流电压转换器的输出电流检测方法公开(公告)号：US20110311027A1
公开(公告)日：2011-12-22
申请号：US13148960
申请日：2010-02-10
CPC分类号： H02M3/156
摘要： The present invention refers to high-voltage generators, in particular to a step-down DC-to-DC converter circuit (buck converter) for supplying a DC output voltage out which may e.g. be used in a voltage supplying circuitry of an X-ray radiographic imaging system. According to the invention, the peak value of the buck converter's storage inductor current L is controlled by a control circuit μC′ which regulates the on-time Δton of a semiconductor switch S in the feeding line of this storage inductor L. As a result thereof, an output current sensor CS, which is commonly used in today's buck converter designs, becomes redundant.
摘要翻译： 本发明涉及用于提供直流输出电压的降压DC-DC转换器电路（降压转换器）的高压发生器。 用于X射线照相成像系统的电压供应电路。 根据本发明，降压转换器的存储电感器电流L的峰值由控制电路μC'控制，控制电路μC'调节在该存储电感器L的馈电线路中的半导体开关S的导通时间和Dgr。吨。作为 其结果是，在当今的降压转换器设计中通常使用的输出电流传感器CS变得多余。
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