发明公开
EP2263302A2 DC/AC POWER INVERTER CONTROL UNIT OF A RESONANT POWER CONVERTER CIRCUIT, IN PARTICULAR A DC/DC CONVERTER FOR USE IN A HIGH-VOLTAGE GENERATOR CIRCUITRY OF A MODERN COMPUTED TOMOGRAPHY DEVICE OR X-RAY RADIOGRAPHIC SYSTEM
有权
控制单元还可包括DC-AC转换器谐振功率转换电路，特别是对于一个DC-AC转换器用在现代COMPUTED设备的高压发生器电路或X射线系统
- 专利标题： DC/AC POWER INVERTER CONTROL UNIT OF A RESONANT POWER CONVERTER CIRCUIT, IN PARTICULAR A DC/DC CONVERTER FOR USE IN A HIGH-VOLTAGE GENERATOR CIRCUITRY OF A MODERN COMPUTED TOMOGRAPHY DEVICE OR X-RAY RADIOGRAPHIC SYSTEM
- 专利标题（中）： 控制单元还可包括DC-AC转换器谐振功率转换电路，特别是对于一个DC-AC转换器用在现代COMPUTED设备的高压发生器电路或X射线系统
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申请号： EP09717168.0申请日： 2009-03-03
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公开(公告)号： EP2263302A2公开(公告)日： 2010-12-22
- 发明人: HATTRUP, Christian , SCHEEL, Thomas , LUERKENS, Peter
- 申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
- 申请人地址： Lübeckertordamm 5 20099 Hamburg DE
- 专利权人： Philips Intellectual Property & Standards GmbH,Koninklijke Philips Electronics N.V.
- 当前专利权人： Philips Intellectual Property & Standards GmbH,Koninklijke Philips Electronics N.V.
- 当前专利权人地址： Lübeckertordamm 5 20099 Hamburg DE
- 代理机构： Van Velzen, Maaike Mathilde
- 优先权： EP08102354 20080306
- 国际公布： WO2009109902 20090911
- 主分类号： H02M7/5387
- IPC分类号： H02M7/5387
摘要：
The present invention refers to a DC/AC power inverter control unit of a resonant-type power converter circuit (400), in particular a DC/DC converter, for sup- plying an output power for use in, for example, a high-voltage generator circuitry of an X-rayradiographic imaging system, 3D rotational angiography device or X-raycom- puted tomography device of the fan-or cone-beam type. More particularly, the present invention is directed to a resonant-type power converter circuit which comprises an in- terphase transformer (406) connected in series to at least one series resonant tank circuit (403a and 403a' or 403b and 403b') at the output of two DC/AC power inverter stages (402a+b) supplying a multi-primary winding high-voltage transformer (404), wherein said interphase transformer (406) serves for removing the difference (DI) in the resonant output currents (
I
1 and
I
2 ) of the DC/AC power inverter stages (402a+b). Furthermore, the present invention is dedicated to a control method which assures that the interphase transformer (406) is not saturated. This control method ensures zero current operation and provides for that input power losses can be minimized.
I
1 and
I
2 ) of the DC/AC power inverter stages (402a+b). Furthermore, the present invention is dedicated to a control method which assures that the interphase transformer (406) is not saturated. This control method ensures zero current operation and provides for that input power losses can be minimized.
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