公开(公告)号：US20210135086A1

公开(公告)日：2021-05-06

申请号：US17087836

申请日：2020-11-03

申请人： Hamilton Sundstrand Corporation

发明人： Ignacio CASTRO ,  Grzegorz POPEK

IPC分类号： H01L41/04 ,  H01L41/107 ,  H02M1/12 ,  H03H7/09 ,  H03H7/06 ,  H02M11/00 ,  H02M7/527

摘要： An output filter for a power train includes a piezoelectric transformer, a load element connected across the output of the piezoelectric transformer and an inductor connected to an input of the piezoelectric transformer.

公开(公告)号：US10153714B2

公开(公告)日：2018-12-11

申请号：US15362895

申请日：2016-11-29

申请人： STEERING SOLUTIONS IP HOLDING CORPORATION

发明人： Zhe Zhang ,  Prerit Pramod

IPC分类号： H02M7/527 ,  H02P6/08 ,  B62D5/04

摘要： An embodiment of a control system for controlling operation of an electric motor includes a current command module configured to receive a torque command and output a current command, and a current controller module configured to generate a modulation index value based on the current command. The system also includes a signal generator configured to generate a voltage signal modulated via a pulse width modulation (PWM) scheme based on the modulation index value, the PWM scheme being a combination of a continuous PWM scheme and a non-continuous PWM scheme based on the modulation index value being greater than or equal to a first threshold value, the signal generator configured to output the voltage signal to the electric motor.

公开(公告)号：US10103643B2

公开(公告)日：2018-10-16

申请号：US15518590

申请日：2015-10-28

申请人： Murata Manufacturing Co., Ltd.

发明人： Tao Zhao ,  Dewei Xu ,  Jahangir Afsharian ,  Bing Gong ,  Zhihua Yang

IPC分类号： H02M7/162 ,  H02M7/527 ,  H02M5/297 ,  H02M5/293 ,  H02M1/12 ,  H02M7/5387

摘要： A converter includes a transformer including primary windings and secondary windings, switches connected to the primary windings, an output inductor connected to the secondary windings, and a controller connected to the switches. The controller turns the switches on and off based on dwell times calculated using space vector modulation with a reference current ref whose magnitude changes with time.

公开(公告)号：US20180269782A1

公开(公告)日：2018-09-20

申请号：US15853704

申请日：2017-12-22

申请人： Inertech IP LLC

发明人： Subrata K. Mondal

IPC分类号： H02M3/155 ,  H02J7/00 ,  H02J9/00 ,  H02M1/04 ,  H02M1/08 ,  H02M7/527

CPC分类号： H02M3/155 ,  H02J7/0063 ,  H02J9/00 ,  H02J9/062 ,  H02M1/04 ,  H02M1/083 ,  H02M3/158 ,  H02M3/1582 ,  H02M3/33584 ,  H02M7/487 ,  H02M7/527 ,  H02M2001/0058 ,  H02M2001/0064 ,  H02M2001/007 ,  H02M2001/0077 ,  Y02B70/1491

摘要： Systems and methods of this disclosure use low voltage energy storage devices to supply power at a medium voltage from an uninterruptible power supply (UPS) to a data center load. The UPS includes a low voltage energy storage device (ultracapacitor/battery), a high frequency (HF) bidirectional DC-DC converter, and a multi-level (ML) inverter. The HF DC-DC converter uses a plurality of HF planar transformers, multiple H-bridge circuits, and gate drivers for driving IGBT devices to generate a medium DC voltage from the ultracapacitor/battery energy storage. The gate drivers are controlled by a zero voltage switching (ZVS) controller, which introduces a phase shift between the voltage on the primary and secondary sides of the transformers. When the primary side leads the secondary side, the ultracapacitor/battery discharges and causes the UPS to supply power to the data center, and when the secondary side leads the primary side, power flows from the grid back to the UPS, thereby recharging the ultracapacitor/battery.

公开(公告)号：US5633788A

公开(公告)日：1997-05-27

申请号：US648396

申请日：1996-05-15

申请人： Shigeru Tanaka ,  Kazutoshi Miura

发明人： Shigeru Tanaka ,  Kazutoshi Miura

IPC分类号： H02M7/527 ,  H02M7/538 ,  H02M1/12

CPC分类号： H02M7/53803 ,  H02M7/527

摘要： A control system for a pulse-width modulation controlled power converter composed of self-turn-off devices. The control system includes a voltage command value generator for the power converter, a carrier wave generator and a circuit for correcting at least one of the voltage command value and the frequency of the carrier wave to generate as a corrected voltage command value and a corrected carrier wave. The control system further includes a gate pulse signal generator for receiving a first signal and a second signal and for comparing the first and second signals to generate gate pulse signals to the self-turn-off devices for controlling the power converter based on a comparison result. The voltage command value is taken as e (-1.ltoreq.e.ltoreq.+1), and a level setting value is taken as E.sub.a (0

摘要翻译： 一种由自关断装置组成的脉宽调制控制电力转换器的控制系统。 控制系统包括用于功率转换器的电压指令值发生器，载波发生器和用于校正电压指令值和载波频率中的至少一个以产生作为校正电压指令值和校正载波的电路 波。 控制系统还包括门脉冲信号发生器，用于接收第一信号和第二信号，并且用于比较第一和第二信号以产生门脉冲信号至自关断装置，用于基于比较结果控制功率转换器 。 将电压指令值作为e（-1 <= e

公开(公告)号：US5113334A

公开(公告)日：1992-05-12

申请号：US477978

申请日：1990-06-14

申请人： Rodney R. Tuson ,  Isaac Dimanstein

发明人： Rodney R. Tuson ,  Isaac Dimanstein

IPC分类号： H02M3/28 ,  H02M3/337 ,  H02M7/519 ,  H02M7/527 ,  H02M7/537

CPC分类号： H02M3/3372 ,  Y02B70/1433

摘要： A high efficiency power conversion at high frequencies with zero voltage switching is obtained by using magnetizing current of a transformer or parallel inductance to charge the switch adjunct capacitance and other capacitance during the dead time. A transformer is prevented from being loaded during the dead time. Loading of the transformer during the dead time is prevented by directing the output inertial current to a capacitor instead of through the rectifiers to the secondary of the transformer. This can also be achieved by using synchronized rectification that provides pulse width modulated regulation on the output and ensures that the transformer secondary is separated from the inertial current of the output during the dead time. Voltage and current stresses on the switching devices and rectifiers are minimized. Zero voltage switching may be applied to inverters where the load is resistive.

摘要翻译： PCT No.PCT / AU88 / 00419 Sec。 371 1990年6月14日第 102（e）日期1990年6月14日PCT提交1988年10月28日PCT公布。 第WO89 / 04082号公报 日期为1989年5月5日。通过使用变压器或并联电感的磁化电流，在死区时间内对开关附加电容和其他电容充电，可以获得高电压切换的高效率功率转换。 在死区时间内防止变压器被装载。 通过将输出惯性电流引导到电容器而不是通过整流器到变压器的次级来防止在死区时间期间加载变压器。 这也可以通过使用在输出上提供脉宽调制调节的同步整流来实现，并且确保变压器次级在死区时间内与输出的惯性电流分离。 开关器件和整流器上的电压和电流应力最小化。 零电压开关可以应用于负载为电阻的逆变器。

公开(公告)号：US4886951A

公开(公告)日：1989-12-12

申请号：US189170

申请日：1988-05-02

申请人： Takahiro Matsumoto ,  Haruo Suenaga ,  Naoyoshi Maehara ,  Kazuho Sakamoto ,  Takashi Niwa ,  Daisuke Bessyo ,  Shigeru Kusunoki ,  Takao Shitaya

发明人： Takahiro Matsumoto ,  Haruo Suenaga ,  Naoyoshi Maehara ,  Kazuho Sakamoto ,  Takashi Niwa ,  Daisuke Bessyo ,  Shigeru Kusunoki ,  Takao Shitaya

IPC分类号： H05B6/68 ,  H01F27/30 ,  H01J20060101 ,  H02M3/335 ,  H02M7/527 ,  H03B9/10 ,  H03C20060101 ,  H05B6/66

CPC分类号： H05B6/666 ,  H02M3/33507 ,  H02M3/33523 ,  H03B9/10 ,  H05B2206/043

摘要： A power supply for a magnetron includes a rectifying circuit, a switching circuit, and a transformer. The rectifying circuit converts an ac-power source signal into a dc-power source signal. The switching circuit converts the dc-power source signal output from the rectifying circuit into a high-frequency signal in accordance with a driving circuit. A transformer connected to the switching circuit converts the high-frequency signal into a high-voltage high-frequency signal for driving the magnetron. The transformer includes a primary winding connected to the switching circuit, a secondary winding connected to the magnetron, a tertiary winding connected to a cathode heater of said magnetron, and a fourth winding connected to the driving circuit. The coupling coefficient between the fourth winding and the second winding is larger than the coupling coefficient between the fourth winding and the primary winding.

摘要翻译： 用于磁控管的电源，其具有逆变器电路，高压变压器，磁控管。 为了缩短从磁控管的功率供给到阴极至通过振荡开始到达额定输出所需的时间，提供了用于检测磁控管的振荡开始时间点的机构， 适于在振荡之后立即进行控制操作以进行额定输出。 在高压变压器上设置用于输出电压检测的绕组，以检测磁控管的振荡。

公开(公告)号：US4800478A

公开(公告)日：1989-01-24

申请号：US932739

申请日：1986-10-31

申请人： Isao Takahashi

发明人： Isao Takahashi

IPC分类号： H02M1/084 ,  H02M7/48 ,  H02P27/06 ,  H02M7/527 ,  H02P7/63

CPC分类号： H02M7/48 ,  H02M1/0845 ,  H02M7/53873 ,  H02M2007/53876

摘要： In the control of a PWM inverter, there are various requirements such as decreasing a harmonic loss and acoustic noises, improving control response, optimizing switchings of the branches of the inverter in any condition, and simplification in circuit construction. In the present invention, the branches of the inverter are controlled in such that an evaluation function on the whole combination of the inverter and the load connected to the AC side of the inverter is made to be minimized.

摘要翻译： PCT No.PCT / JP85 / 00492 Sec。 371日期1986年10月31日第 102（e）1986年10月31日PCT PCT日期为1985年9月3日。在PWM逆变器的控制中，存在减少谐波损耗和声音噪声，改善控制响应，优化分支转换的各种要求 变频器在任何情况下，简化了电路结构。 在本发明中，逆变器的分支被控制成使逆变器的整体组合和连接到逆变器的AC侧的负载的评估功能最小化。

公开(公告)号：US4700281A

公开(公告)日：1987-10-13

申请号：US795990

申请日：1985-11-06

申请人： Gernot Thorn ,  Friedrich-Werner Thomas ,  Johann Sturmer ,  Dietrich Dahlinger ,  Guido Hubertus ,  Wolfgang Sperzel

发明人： Gernot Thorn ,  Friedrich-Werner Thomas ,  Johann Sturmer ,  Dietrich Dahlinger ,  Guido Hubertus ,  Wolfgang Sperzel

IPC分类号： H02M7/527 ,  H02M5/45

CPC分类号： H02M7/527

摘要： The invention concerns a converter (2) provided with GTO thyristors the frequency and characteristic shape of its output voltage (U.sub.A) being constrained by a load (3). The frequency of the converter (2) is matched to the constrained output voltage (U.sub.A) with the aid of a regulating circuit (4). Non-simultaneously switched GTO thyristors are switched on and off in a predetermined timed relation to each other (FIG. 3).

摘要翻译： 本发明涉及一种具有GTO晶闸管的转换器（2），其由负载（3）约束的其输出电压（UA）的频率和特征形状。 借助于调节电路（4），转换器（2）的频率与受约束的输出电压（UA）匹配。 非同时开关GTO晶闸管以预定的定时关系彼此接通和断开（图3）。

公开(公告)号：US4607321A

公开(公告)日：1986-08-19

申请号：US787716

申请日：1985-10-17

申请人： Hideo Obi

发明人： Hideo Obi

IPC分类号： B60L9/18 ,  H02M7/48 ,  H02M7/527 ,  H02P27/04 ,  H02M1/12

CPC分类号： H02M7/527 ,  H02M7/48 ,  H02P27/08

摘要： An inverter for use with a vehicular induction motor employs a modulation system in which the waveform of the carrier wave is adjusted so that the modulation wave is made into a constant DC signal.

摘要翻译： 用于车载感应电动机的逆变器采用其中调整载波波形的调制方式，使调制波变成恒定的直流信号。