公开(公告)号：US06813173B2

公开(公告)日：2004-11-02

申请号：US10606537

申请日：2003-06-26

申请人： Laszlo Lipcsei

发明人： Laszlo Lipcsei

IPC分类号： H02M75387

CPC分类号： H02M3/1584 ,  H02M3/156

摘要： A DC to DC converter having improved transient response, accuracy, and stability. The DC to DC converter includes a first comparator configured to compare a first signal with a second signal. The first signal has a DC offset determined, at least in part, by a DC reference voltage source. The second signal is representative of an output voltage level of the DC to DC converter. The comparator is further configured to provide a control signal to a driver based on a difference between the first signal and the second signal, the driver driving the output voltage of the DC to DC converter. The DC to DC converter further includes an accuracy circuit to enhance accuracy of the DC to DC converter. The DC to DC converter may further include a stability circuit to enhance stability of the DC to DC converter.

摘要翻译： 具有改善的瞬态响应，精度和稳定性的DC-DC转换器。 DC-DC转换器包括被配置为将第一信号与第二信号进行比较的第一比较器。 第一信号具有至少部分由DC参考电压源确定的DC偏移。 第二信号代表DC-DC转换器的输出电压电平。 所述比较器还被配置为基于所述第一信号和所述第二信号之间的差异，所述驱动器驱动所述DC-DC转换器的输出电压，向驾驶员提供控制信号。 DC-DC转换器还包括精度电路，以提高DC-DC转换器的精度。 DC-DC转换器还可以包括稳定电路，以增强DC-DC转换器的稳定性。

公开(公告)号：US06603675B1

公开(公告)日：2003-08-05

申请号：US10046720

申请日：2002-01-17

申请人： Staffan Norrga

发明人： Staffan Norrga

IPC分类号： H02M75387

CPC分类号： H02M7/483 ,  H02M5/297 ,  H02M7/219 ,  H02M7/4807 ,  H02M2001/0048 ,  H02M2007/2195 ,  Y02B70/1408 ,  Y02B70/1491

摘要： An apparatus for converting direct voltage into three-phase alternating voltage and conversely comprises a VSC-converter (8) having a direct voltage intermediate link (9) and at least one phase leg (12, 13). Each current valve (14-17) of the phase legs has at least one semiconductor device of turn-off type and a rectifying member connected in anti-parallel therewith. A transformer (19) has two opposite ends of a first winding (20) thereof connected to an output (21, 22) each of the VSC-converter and a second winding (23) connected to a direct converter having at least three phase legs. Each of the current valves of the direct converter being able to conduct current and block voltage in both directions and to turn on by gate control. The midpoints (27, 27′, 27″) of the phase legs of the direct converters are provided with phase outputs for forming a terminal for the alternating phase voltage between these phase outputs.

摘要翻译： 一种用于将直流电压转换为三相交流电压的装置，相反地包括具有直流电压中间链路（9）和至少一个相位支路（12,13）的VSC转换器（8）。 相位腿的每个电流阀（14-17）具有至少一个关断型半导体器件和与其平行连接的整流元件。 变压器（19）具有连接到每个VSC转换器的输出端（21,22）的第一绕组（20）的两个相对端，以及连接到直接转换器的第二绕组（23），所述直接转换器具有至少三相腿 。 直流转换器的每个电流阀能够在两个方向上传导电流和阻挡电压，并通过门控制导通。 直流转换器的相位臂的中点（27,27'，27“）设置有用于形成这些相位输出之间的交流相电压的端子的相位输出。

公开(公告)号：US06556464B2

公开(公告)日：2003-04-29

申请号：US09956257

申请日：2001-09-20

申请人： Keijirou Sakai ,  Toshiaki Okuyama ,  Kinya Nakatsu ,  Seiji Ishida ,  Hiroshi Fujii ,  Junji Kato ,  Masahiro Hiraga

发明人： Keijirou Sakai ,  Toshiaki Okuyama ,  Kinya Nakatsu ,  Seiji Ishida ,  Hiroshi Fujii ,  Junji Kato ,  Masahiro Hiraga

IPC分类号： H02M75387

CPC分类号： H02M1/4233 ,  H02M1/4216 ,  H02M2001/0012 ,  Y02B70/126

摘要： A single-phase PWM converter system in accordance with the present invention employs a sample-and-hold circuit which samples and holds a direct current in the state wherein one of two-phase gate signals of a positive or negative side arm is ON and the other phase is OFF, determines the sign of an output of the sample-and-hold circuit according to the two-phase gate condition, detects a phase current at the input side of the converter, and controls a voltage at the input side of the converter so that the detected current value agrees with a power supply current command. Further, a three-phase PWM converter system in accordance with the present invention detects the effective current and the ineffective current of the power supply current from the direct current, and based on the values, controls the PWM converter so that the sine wave power supply current whose power supply power factor is 1 is provided.

摘要翻译： 根据本发明的单相PWM转换器系统采用采样和保持电路，其采样和保持直流电流，其中正或负侧臂的两相门信号之一为ON， 其他相位为OFF，根据两相门条件确定采样保持电路的输出的符号，检测转换器输入侧的相电流，并控制转换器的输入侧的电压 转换器，使得检测到的电流值与电源电流指令一致。此外，根据本发明的三相PWM转换器系统从直流电流检测电源电流的有效电流和无效电流，并且基于 在该值上，控制PWM转换器，使得提供功率因数为1的正弦波电源电流。

公开(公告)号：US06370051B1

公开(公告)日：2002-04-09

申请号：US09706407

申请日：2000-11-03

申请人： Amrit P. Patel

发明人： Amrit P. Patel

IPC分类号： H02M75387

CPC分类号： H02M3/33538

摘要： A forward converter circuit has substantially reduced switching losses to provide greater efficiency than the aforementioned conventional circuit. A first switch is coupled to a primary winding of a transformer and adapted to selectively couple a bus voltage terminal to a first terminal of the primary winding. A second switch is coupled to the transformer and adapted to selectively couple a second terminal of the primary winding to ground. The first and second switches are triggered in response to a first periodic gate control signal. A diode is coupled between the bus voltage terminal and the second terminal of the primary winding of the transformer. A third switch is coupled to the transformer and adapted to selectively couple the first terminal of the primary winding of the transformer to ground. The third switch is triggered in response to a second periodic gate control signal. The second periodic gate control signal is substantially inverted with respect to the first periodic gate control signal. A capacitor is coupled in parallel with the second switch. Power from the bus voltage terminal is transferred from the primary winding to the secondary winding of the transformer during a portion of an operational cycle of the forward converter circuit with the first and second switches being in a conductive state responsive to the first periodic gate control signal.

摘要翻译： 正向转换器电路具有显着降低的开关损耗，以提供比上述传统电路更高的效率。 第一开关耦合到变压器的初级绕组，并且适于选择性地将总线电压端子耦合到初级绕组的第一端子。 第二开关耦合到变压器并且适于选择性地将初级绕组的第二端子耦合到地。 响应于第一周期性栅极控制信号触发第一和第二开关。 二极管耦合在总线电压端子和变压器初级绕组的第二端子之间。 第三开关耦合到变压器并且适于选择性地将变压器的初级绕组的第一端耦合到地。 响应于第二周期性栅极控制信号触发第三开关。 第二周期性栅极控制信号相对于第一周期性栅极控制信号基本上反相。 电容器与第二开关并联耦合。 在正向变换器电路的工作周期的一部分期间，来自总线电压端子的功率从初级绕组传送到变压器的次级绕组，其中第一和第二开关响应于第一周期性栅极控制信号而处于导通状态 。

公开(公告)号：US06356463B1

公开(公告)日：2002-03-12

申请号：US09778638

申请日：2001-02-07

申请人： Chia-Ming Tsai

发明人： Chia-Ming Tsai

IPC分类号： H02M75387

CPC分类号： H02M3/3376 ,  H02M2001/0012

摘要： A high frequency, voltage feedback control mode power converter having a microprocessor outputs a control clock signal and a simulated output voltage to control the dead-time value of a PWM controller. The control clock signal is decided by an input interrupt process program and an output interrupt process program written in the microprocessor. By appropriately providing the control clock signal for controlling the dead-time value of the PWM controller, the efficiency of the high frequency, voltage feedback control mode power converter is raised and an output steady response is also improved.

摘要翻译： 具有微处理器的高频，电压反馈控制模式功率转换器输出控制时钟信号和模拟输出电压，以控制PWM控制器的死区时间值。 控制时钟信号由写入微处理器的输入中断处理程序和输出中断处理程序决定。 通过适当地提供用于控制PWM控制器的死区时间值的控制时钟信号，提高了高频电压反馈控制模式功率转换器的效率，并且还提高了输出稳定响应。

公开(公告)号：US06278625B1

公开(公告)日：2001-08-21

申请号：US09615234

申请日：2000-07-13

申请人： Clark Davis Boyd

发明人： Clark Davis Boyd

IPC分类号： H02M75387

CPC分类号： H01L41/044 ,  H01L41/107 ,  H02M7/48 ,  H05B41/2827

摘要： An inverter circuit is provided using a voltage converter having multiple layers of piezoelectric ceramic. More specifically, the present invention provides an inverter circuit for a Cold Cathode Fluorescent Lamp (CCFL) incorporating a multilayer piezoelectric transformer that uses the longitudinal resonant vibration mode for step-up voltage conversion. The transformer is driven by a FET half-bridge connected to an oscillator through dual current buffers, one current buffer being driven through and a level shifter and charge pump.

摘要翻译： 使用具有多层压电陶瓷的电压转换器来提供逆变器电路。 更具体地说，本发明提供了一种结合使用纵向共振振动模式进行升压电压转换的多层压电变压器的冷阴极荧光灯（CCFL）的逆变器电路。 变压器由连接到振荡器的FET半桥驱动，通过双电流缓冲器，一个电流缓冲器被驱动通过，电平移位器和电荷泵。

公开(公告)号：US06269014B1

公开(公告)日：2001-07-31

申请号：US09627180

申请日：2000-07-27

申请人： Rainald Sander ,  Chihao Xu ,  Josef-Matthias Gantioler ,  Frank Auer

发明人： Rainald Sander ,  Chihao Xu ,  Josef-Matthias Gantioler ,  Frank Auer

IPC分类号： H02M75387

CPC分类号： H02M7/538 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/05554 ,  H01L2224/48137 ,  H01L2224/48145 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/4903 ,  H01L2924/00014 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2924/3011 ,  H02M7/003 ,  H02P7/04 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599 ,  H01L2924/00012

摘要： In order to supply a load, e.g. an electric motor, with current bidirectionally, an H bridge configuration containing four switching transistors is used. In order to attain outstanding electrical conductivity and also thermal conductivity, a half-bridge configuration containing two transistors of opposite conductivity types is constructed. Each of the transistors is realized on a chip, the rear sides of which chips are seated on a common conductive support preferably produced from metal. Each housing is equipped with a support of this type. The rear side of each of the two chips is formed from a drain or source electrode of the transistors. A load can be connected to the support. Two half-bridge configurations can advantageously be combined to form an H bridge configuration.

摘要翻译： 为了提供负载，例如 使用具有双向电流的电动机，包含四个开关晶体管的H桥配置。 为了获得优异的导电性和导热性，构造了包含两个相反导电类型的晶体管的半桥配置。 每个晶体管都实现在芯片上，其芯片的后侧位于通常由金属制成的导电支撑件上。 每个房屋都配有这种类型的支撑。 两个芯片中的每一个的后侧由晶体管的漏极或源极形成。 负载可以连接到支持。 两个半桥配置可以有利地组合以形成H桥配置。

公开(公告)号：US06222751B1

公开(公告)日：2001-04-24

申请号：US09571354

申请日：2000-05-15

申请人： Salvatore Portaluri ,  Alessandro Savo ,  Maurizio Nessi ,  Luigi Eugenio Garbelli ,  Giorgio Sciacca

发明人： Salvatore Portaluri ,  Alessandro Savo ,  Maurizio Nessi ,  Luigi Eugenio Garbelli ,  Giorgio Sciacca

IPC分类号： H02M75387

CPC分类号： H03K17/166 ,  H02M7/53803

摘要： A driver circuit includes a half-bridge output stage including two transistors with a common terminal for connection as the driver output to a coil of a DC motor. Two amplifiers drive the transistors in the push-pull operation and two capacitors are connected between the driver output and one input of a respective amplifier to form feedback loops for controlling the output slew-rate. Two current generators are selectively connected to an input of either of the amplifiers through respective pairs of switches. A commutation sequencer turns on and off the switches according to a commutation program. Comparators are connected to the drive output for detecting predetermined output voltage conditions and providing the commutation sequencer with signals for conditioning the commutation program as a function of the detected voltage conditions.

摘要翻译： 驱动器电路包括半桥输出级，其包括具有用于连接的公共端子的两个晶体管，因为驱动器输出到直流电动机的线圈。 两个放大器在推挽操作中驱动晶体管，并且两个电容器连接在驱动器输出和相应放大器的一个输入端之间，以形成用于控制输出转换速率的反馈回路。 两个电流发生器通过相应的开关对选择性地连接到任一放大器的输入。 换向顺序器根据换向程序打开和关闭开关。 比较器连接到驱动输出端，用于检测预定的输出电压状况，并根据检测到的电压条件向换向定序器提供用于调节换向程序的信号。

公开(公告)号：US06215679B1

公开(公告)日：2001-04-10

申请号：US09576200

申请日：2000-05-23

申请人： Toshinori Yamane ,  Hirotoshi Maekawa

发明人： Toshinori Yamane ,  Hirotoshi Maekawa

IPC分类号： H02M75387

CPC分类号： H02M7/003 ,  H01L25/16 ,  H01L25/18 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/01057 ,  H01L2924/01068 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/181 ,  H01L2924/19041 ,  H01L2924/19107 ,  H01L2924/30107 ,  H01L2924/3025 ,  H05K9/002 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： The present invention provides an alternator having a small size and a high reliability wherein, the alternator is equipped with a switching power module 1 having a resin case 13 housing switching elements 2 and a driving circuit section 5, a smoothing capacitor 7 for smoothing a direct current output supplied to the switching elements 2, a control circuit section 6 for outputting a control signal to the driving circuit section 5 and a cooling member 24; a ceramic capacitor is used as the smoothing capacitor; a smoothing capacitor board 25 for mounting the smoothing capacitor 7 is disposed between an insulating board mounting with the switching elements 2 and a driving circuit board 18 mounting with the driving circuit section 5; and the smoothing capacitor board 25 functions also as an electromagnetic shielding plate for protecting the driving circuit section 5 against the switching noise of the switching elements.

摘要翻译： 本发明提供一种具有小尺寸和高可靠性的交流发电机，其中交流发电机配备有开关功率模块1，开关功率模块1具有容纳开关元件2和驱动电路部分5的树脂壳体13，平滑电容器7， 提供给开关元件2的电流输出，用于向驱动电路部分5输出控制信号的控制电路部分6和冷却部件24; 使用陶瓷电容器作为平滑电容器; 安装平滑电容器7的平滑电容器板25设置在安装有开关元件2的绝缘板和安装有驱动电路部5的驱动电路板18之间; 并且平滑电容器板25也用作用于防止驱动电路部分5抵抗开关元件的开关噪声的电磁屏蔽板。

公开(公告)号：US06185118B2

公开(公告)日：2001-02-06

申请号：US09553520

申请日：2000-04-20

申请人： Rainald Sander ,  Axel Christoph

发明人： Rainald Sander ,  Axel Christoph

IPC分类号： H02M75387

CPC分类号： H03K17/063 ,  H03K17/6871

摘要： In a driver circuit for driving a half bridge, that has a high-side semiconductor switch and a low-side semiconductor switch that are connected in series between a first and a second supply potential terminal, a drive is allocated to each of the two semiconductor switches that are respectively switched inhibited or transmissive by the respective semiconductor switches according to the direction of a drive signal. A load can be connected between the high-side semiconductor switch and the low-side semiconductor switch. For an inhibited state of a semiconductor switch, its drive terminal is charged approximately with the potential of the second supply potential terminal in order to attain a negative bias voltage of the drive terminal opposite the source terminal.

摘要翻译： 在用于驱动半桥的驱动电路中，具有串联连接在第一和第二电源端之间的高侧半导体开关和低侧半导体开关，驱动被分配给两个半导体 分别根据驱动信号的方向由各个半导体开关禁止或透过的开关。 负载可以连接在高侧半导体开关和低侧半导体开关之间。 对于半导体开关的禁止状态，其驱动端子大约与第二电源端子的电位充电，以便获得与源极端子相对的驱动端子的负偏置电压。