公开(公告)号：DE112011104465T5

公开(公告)日：2014-02-06

申请号：DE112011104465

申请日：2011-12-15

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： SCHEEL THOMAS ,  HATTRUP CHRISTIAN

IPC: G01R33/385

Abstract: Es werden ein Verfahren und ein Digitalverstärkersystem zum Betrieb eines MRI-(Magnetresonanzbildgebungs-)Gradientenmagnetsystems zum Erzeugen von Gradientenmagnetfeldern, insbesondere zum räumlichen Codieren von MR-(Magnetresonanz-)Relaxationssignalen, beschrieben. Grundsätzlich werden die Gradientenspulenströme mit Hilfe eines digitalen Reglers, der durch einen Zustandsraum-Feedback-Regler realisiert wird, in der digitalen Domäne geregelt.

公开(公告)号：DE60235702D1

公开(公告)日：2010-04-29

申请号：DE60235702

申请日：2002-05-28

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： SCHEEL THOMAS ,  HATTRUP CHRISTIAN ,  MAERTENS OLAF ,  GERCKE THORSTEN

IPC: H02M3/28 ,  H02M3/337 ,  H02M7/523 ,  H05G1/10 ,  H05G1/58

Abstract: Two proposals are made for power supply systems comprising at least one resonant inverter and one control unit. According to the first proposal the power supply system comprises two inverters and produces two output voltages, the control circuit processing as an actual value on the one hand the sum of and on the other hand the difference between the two output voltages. According to the second proposal a control circuit does not directly process the controlled variables for a power supply system comprising at least one inverter, but difference units for controlled variables determine the deviations from a preceding sampling instant and these difference values are processed. Also the correcting variable calculated in this way is a difference value which is converted into a correcting variable value by a correcting variable summing unit. The two proposals can be advantageously combined. As an important improvement is proposed the use of a limiting controller which generally becomes active in case of imminent transgression of a maximum value and which limits the actuation. The control circuit is preferably used as a digital control circuit for a state space control.

公开(公告)号：DE602006013483D1

公开(公告)日：2010-05-20

申请号：DE602006013483

申请日：2006-09-12

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV

Inventor： DEPPE CARSTEN ,  HATTRUP CHRISTIAN

IPC: H03K7/08 ,  H02M3/137

Abstract: Generating an output pulse signal (Y), which has an output signal period (Ty), which is divided by a magnitude transition into a leading part (LP) and a trailing part (TP). During each output signal period (Ty) altering means (27 to 36) determine in a coarse and fine way a duration (TLP, TTP) of one or both of said output signal period parts (LP, TP) by using a clock signal (Cx) of different clock cycle durations (TCx0, TCx1, TCx2), dependent on a value of a first digital number (D1) and a value of second, less significant digital number (D3, D5), respectively.

公开(公告)号：DE50211871D1

公开(公告)日：2008-04-24

申请号：DE50211871

申请日：2002-05-14

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： LOEF CHRISTOPH ,  HATTRUP CHRISTIAN ,  SCHEEL THOMAS ,  MAERTENS OLAF ,  OSSMANN MARTIN

IPC: H02M3/28 ,  H02M3/337

Abstract: A voltage changer (VC) (12) generates a wired VC output voltage (Uw). A transformer (14) fed on its primary side by the VC connects a load output (24) to its secondary side. A resonance capacitor (Cr) forms a resonance layout with leakage inductance for the transformer and/or an external inductance. A test device (16) determines operating parameters for a power supply system. A current sensor (22) measures current (ir) on the primary side of the transformer. An Independent claim is also included for a method for determining operating parameters for a power supply system.

公开(公告)号：WO2007031940A2

公开(公告)日：2007-03-22

申请号：PCT/IB2006053224

申请日：2006-09-12

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  DEPPE CARSTEN ,  HATTRUP CHRISTIAN

Inventor： DEPPE CARSTEN ,  HATTRUP CHRISTIAN

CPC classification number: H03K7/08 ,  H02M3/157

Abstract: Generating an output pulse signal (Y), which has an output signal period (T y ), which is divided by a magnitude transition into a leading part (LP) and a trailing part (TP). During each output signal period (T y ) altering means (27 to 36) determine in a coarse and fine way a duration (T LP , T TP ) of one or both of said output signal period parts (LP, TP) by using a clock signal (Cx) of different clock cycle durations (T Cx0 , T Cx1 , T Cx2 ), dependent on a value of a first digital number (Dl) and a value of a second, less significant digital number (D3, D5), respectively.

Abstract translation: 产生输出脉冲信号（Y），该输出脉冲信号（Y）具有通过幅度转变划分为前导部分（LP）和尾部分（TP）的输出信号周期（T SUB> y ）。 在每个输出信号周期期间，改变装置（27至36）以粗略且精确的方式确定持续时间（T _{LP ，T TP 通过使用具有不同时钟周期持续时间的时钟信号（Cx），其中T Cx1 ，T Cx1 的一个或两个输出信号周期部分 （D 1）的值和第二较低有效数字数字（D ​​3，D 5）的值，分别根据第一数字数字（D ​​1）的值和第二较低有效数字数字（D ​​3，D 5）}

公开(公告)号：WO2008012722A3

公开(公告)日：2008-03-27

申请号：PCT/IB2007052779

申请日：2007-07-12

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  LUERKENS PETER ,  HATTRUP CHRISTIAN ,  SCHEEL THOMAS

Inventor： LUERKENS PETER ,  HATTRUP CHRISTIAN ,  SCHEEL THOMAS

IPC: H02M3/335

CPC classification number: H02M3/00 ,  H02M2001/0009

Abstract: An apparatus and method for determining an output voltage or output current in an SMPS circuit 10 are described. The SMPS circuit comprises a switching element 18 which in operation is switched according to consecutive switching cycles. An electrical value I L within the SMPS circuit 10 is compared to a reference value I ref . The electrical value I L varies within the switching cycle such that is equal to the reference value at least once during each cycle. The comparator signal comp is evaluated to determine timing information t of an instant of change in the signal. The timing information t is used for determining the output voltage V out,Av or output current I out,Av.

Abstract translation: 描述了用于确定SMPS电路10中的输出电压或输出电流的装置和方法。 SMPS电路包括开关元件18，其在工作中根据连续的开关周期被切换。 将SMPS电路10内的电气值I L L 与参考值I SUB ref进行比较。 在开关周期内，电气值I L 在每个循环期间等于参考值至少一次。 评估比较器信号comp以确定信号变化瞬间的定时信息t。 定时信息t用于确定输出电压V OUT，Av /或输出电流I OUT，Av。

公开(公告)号：WO2011070481A3

公开(公告)日：2011-08-11

申请号：PCT/IB2010055517

申请日：2010-12-01

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  DEPPE CARSTEN ,  HATTRUP CHRISTIAN

Inventor： DEPPE CARSTEN ,  HATTRUP CHRISTIAN

IPC: H05B41/28 ,  H02M5/458 ,  H02M7/217

CPC classification number: H05B41/28 ,  H02J7/345

Abstract: Driver circuits (1) for driving load circuits (2, 3) receive source signals from sources and provide feeding signals to the load circuits (2,3) and charging signals to capacitor circuits (21). These capacitor circuits (21) provide supporting signals to the load circuits (2, 3) in addition to the feeding signals. By providing the driver circuits (1) with control circuits (22) for controlling the supporting signals, the capacitor circuits (21) can become less bulky / costly and/or will limit the lifetime of the driver circuits (1) to a smaller extent. Further, these driver circuits (1) may get improved efficiencies. Said controlling may comprise controlling moments in time at which the supporting signals are offered to the load circuits (2, 3) or not, and/or may comprise controlling sizes of the supporting signals, and/or may be done in response to detection results from detectors (23) for detecting parameters of one or more signals. Said controlling may comprise switching via switches (24).

Abstract translation: 用于驱动负载电路（2,3）的驱动器电路（1）从源接收源信号并向负载电路（2,3）提供馈送信号并且向电容器电路（21）充电信号。 除了馈电信号之外，这些电容器电路（21）还向负载电路（2,3）提供支持信号。 通过为驱动器电路（1）提供用于控制支持信号的控制电路（22），电容器电路（21）可以变得更小体积/更昂贵和/或将会将驱动器电路（1）的寿命限制在更小程度 。 此外，这些驱动器电路（1）可以获得改善的效率。 所述控制可以包括控制支持信号被提供给负载电路（2,3）的时间点，和/或可以包括控制支持信号的大小，和/或可以响应于检测结果来完成 来自用于检测一个或多个信号的参数的检测器（23）。 所述控制可以包括经由开关（24）的切换。

公开(公告)号：WO2009109902A3

公开(公告)日：2009-11-05

申请号：PCT/IB2009050839

申请日：2009-03-03

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  HATTRUP CHRISTIAN ,  SCHEEL THOMAS ,  LUERKENS PETER

Inventor： HATTRUP CHRISTIAN ,  SCHEEL THOMAS ,  LUERKENS PETER

IPC: H02M7/5387 ,  H02M1/40

CPC classification number: H02M7/53873 ,  H02M1/40 ,  H02M2001/0064 ,  Y02B70/1441

Abstract: 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.

Abstract translation: 本发明涉及一种谐振型电力转换器电路（400）的DC / AC电力逆变器控制单元，特别是DC / DC转换器，用于提供例如用于高压电力的输出功率， X射线照相成像系统的电压发生器电路，3D旋转血管造影装置或扇形或锥形束型的X射线计算机断层摄影装置。 更具体地说，本发明涉及一种谐振型功率转换器电路，其包括与在至少一个串联谐振回路（403a和403a'或403b和403b'）串联连接的相间变压器（406） 输出提供多初级绕组高压变压器（404）的两个DC / AC电力逆变器级（402a + b），其中所述相间变压器（406）用于消除谐振输出电流（I 1和I 2）的DC / AC电力逆变器级（402a + b）。 此外，本发明专用于确保相间变压器（406）不饱和的控制方法。 该控制方法可确保零电流运行，并且能够使输入功率损耗最小化。

公开(公告)号：WO2010018533A3

公开(公告)日：2010-04-08

申请号：PCT/IB2009053516

申请日：2009-08-11

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  SCHEEL THOMAS ,  HATTRUP CHRISTIAN ,  LUERKENS PETER

Inventor： SCHEEL THOMAS ,  HATTRUP CHRISTIAN ,  LUERKENS PETER

IPC: H03M3/04

CPC classification number: H03M3/412

Abstract: A hybrid analog/digital circuit comprises: an analog difference element (60) configured to output an analog difference signal (d) corresponding to a difference between an input analog signal (s meas ) and an analog feedback signal (s bias ); an analog-to-digital converter (ADC) (62) configured to generate a multi-bit digital representation (D) of the analog difference signal; digital control circuitry (64, 66, 68) including at least a digital integrator or digital summer (64), the digital control circuitry configured to generate a digital control signal (S BIAS ) based on the multi-bit digital representation of the analog difference signal; a digital-to-analog converter (DAC) (70) configured to generate the analog feedback signal (s bias ) having an analog value corresponding to a digital value of the digital control signal; and an output unit (72, 74) arranged to output a digital output signal (S MEAS ) equal to or derived from the digital control signal.

Abstract translation: 一种混合模拟/数字电路，包括：模拟差分元件（60），被配置为输出与输入模拟信号（s meas）和模拟反馈信号（s bias）之间的差相对应的模拟差分信号（d）; 模数转换器（ADC）（62），其被配置为生成所述模拟差分信号的多位数字表示（D）;模数转换器 数字控制电路（64,66,68），其至少包括数字积分器或数字加法器（64），所述数字控制电路被配置为基于所述模拟差分的所述多位数字表示产生数字控制信号（S BIAS） 信号; 数模转换器（DAC）（70），被配置为生成具有对应于所述数字控制信号的数字值的模拟值的所述模拟反馈信号（s bias）; 和输出单元（72,74），其被配置为输出等于或来源于数字控制信号的数字输出信号（S MEAS）。

公开(公告)号：WO2007122530A8

公开(公告)日：2008-10-09

申请号：PCT/IB2007051270

申请日：2007-04-10

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  SCHEEL THOMAS ,  HATTRUP CHRISTIAN ,  LUERKENS PETER

Inventor： SCHEEL THOMAS ,  HATTRUP CHRISTIAN ,  LUERKENS PETER

IPC: H02M1/00

CPC classification number: H02M1/083 ,  H02M2001/0009

Abstract: Current switching point determination devices use two comparators with fixed threshold values. According to an exemplary embodiment of the present invention, a power inverter control device for switching point determination is provided which comprises a filter circuit and a subsequent single comparator. By this arrangement, the time event is independent of the amplitude and for sufficiently small frequencies also of the frequency.

Abstract translation: 当前切换点确定设备使用具有固定阈值的两个比较器。 根据本发明的示例性实施例，提供了一种用于切换点确定的功率逆变器控制装置，其包括滤波器电路和随后的单个比较器。 通过这种安排，时间事件与振幅无关，频率也与频率的足够小的频率无关。