ENERGY RECOVERY DEVICE IN A VARIABLE-FREQUENCY DRIVE
    11.
    发明申请
    ENERGY RECOVERY DEVICE IN A VARIABLE-FREQUENCY DRIVE 有权
    能量恢复装置在可变频率驱动

    公开(公告)号:US20110199801A1

    公开(公告)日:2011-08-18

    申请号:US13062716

    申请日:2009-10-12

    CPC classification number: H02P27/06 H02P2201/07

    Abstract: A variable-frequency drive that includes a DC power supply bus with a positive line and a negative line, and an inverter module powered by the DC bus for supplying a variable voltage to an electric load. The inverter includes a first DC/DC converter including output terminals connected in series on the positive line of the DC bus, a second DC/DC converter including input terminals connected between the positive line and the negative line of the DC bus, a filtering capacitor connected in parallel to the input terminals of the first converter and to the first output terminals of the second converter, and an electric power storage module connected in parallel to the second output terminals of the second converter.

    Abstract translation: 一种变频驱动器,其包括具有正线和负线的直流电源总线,以及由DC总线供电的逆变器模块,用于向电负载提供可变电压。 逆变器包括:第一DC / DC转换器,包括串联连接在直流总线正极上的输出端子;第二DC / DC转换器,包括连接在直流母线的正极线和负极线之间的输入端子;滤波电容器 并联连接到第一转换器的输入端和第二转换器的第一输出端,​​以及与第二转换器的第二输出端并联连接的电力存储模块。

    POWER-FACTOR CORRECTION DEVICE FOR VARIABLE SPEED DRIVE
    12.
    发明申请
    POWER-FACTOR CORRECTION DEVICE FOR VARIABLE SPEED DRIVE 失效
    用于变速驱动的功率因数校正装置

    公开(公告)号:US20070114962A1

    公开(公告)日:2007-05-24

    申请号:US11559077

    申请日:2006-11-13

    Applicant: Petar Grbovic

    Inventor: Petar Grbovic

    Abstract: The invention relates to a variable speed drive for three-phase electric motor, comprising a rectifier module (10) supplying a rectified voltage (15) from a single-phase alternating current network, a voltage step-up module (40) supplying a regulated bus voltage (45), an inverter module (50) supplying a control voltage to the motor (M). The variable speed drive comprises a hybrid power-factor correction device which drives the voltage step-up module and which comprises a digital circuit (30) provided with a voltage step-up module supplying a correction signal based on a measurement signal of said bus voltage and an analogue circuit (20) supplying a driver signal (25) to the step-up module based on a measurement signal of said rectified voltage and based on said correction signal.

    Abstract translation: 本发明涉及一种用于三相电动机的变速驱动器,包括从单相交流网络提供整流电压(15)的整流器模块(10),提供调节的电压的升压模块(40) 总线电压(45),向电动机(M)供给控制电压的逆变器模块(50)。 变速驱动器包括驱动升压模块的混合功率因数校正装置,该装置包括数字电路(30),该数字电路(30)具有升压模块,该升压模块基于所述总线电压的测量信号提供校正信号 以及基于所述整流电压的测量信号并且基于所述校正信号向所述升压模块提供驱动器信号(25)的模拟电路(20)。

    Current-source power converter using normally-on field effect transistors
    13.
    发明授权
    Current-source power converter using normally-on field effect transistors 有权
    电流源功率转换器采用常开场效应晶体管

    公开(公告)号:US08730699B2

    公开(公告)日:2014-05-20

    申请号:US12942370

    申请日:2010-11-09

    Applicant: Petar Grbovic

    Inventor: Petar Grbovic

    CPC classification number: H02M7/1623 Y02B70/1483

    Abstract: The invention relates to a current-source power converter comprising, in a module thereof , switching legs having normally-on field effect transistors each controlled by a gate control device. A normally-open auxiliary switch is in series with the switching legs and connected to the positive line of the power supply bus. This auxiliary switch can prevent the mains from short-circuiting during start-up or during malfunction of the auxiliary power supply.

    Abstract translation: 本发明涉及一种电流源功率转换器,其在其模块中包括具有常栅场效应晶体管的开关支脚,每个由栅极控制装置控制。 常开辅助开关与开关支路串联并连接到电源总线的正极。 该辅助开关可以防止电源在启动期间或辅助电源故障期间发生短路。

    Device for controlling a power transistor
    14.
    发明授权
    Device for controlling a power transistor 失效
    用于控制功率晶体管的装置

    公开(公告)号:US08427226B2

    公开(公告)日:2013-04-23

    申请号:US12818683

    申请日:2010-06-18

    Applicant: Petar Grbovic

    Inventor: Petar Grbovic

    CPC classification number: H03K17/163 H03K17/08122

    Abstract: The invention relates to a gate control device for a JFET-type transistor that has a gate, a drain and a source. The gate control device includes a voltage generation circuit comprising an output connected to the gate of the transistor, where the circuit is designed to generate at the output a reference gate-source voltage following a predetermined voltage ramp. A voltage limiting circuit is designed to limit the reference gate-source voltage to a predetermined maximum value when the gate-source voltage at the terminals of the JFET transistor has reached said maximum value.

    Abstract translation: 本发明涉及一种具有栅极,漏极和源极的JFET型晶体管的栅极控制器件。 栅极控制装置包括电压产生电路,其包括连接到晶体管的栅极的输出,其中电路被设计为在输出端产生遵循预定电压斜坡的参考栅极 - 源极电压。 当JFET晶体管的端子处的栅极 - 源极电压达到所述最大值时,电压限制电路被设计为将参考栅极 - 源极电压限制在预定的最大值。

    SWITCHED-MODE POWER SUPPLY SYSTEM AND SPEED VARIATOR COMPRISING SUCH A SYSTEM
    15.
    发明申请
    SWITCHED-MODE POWER SUPPLY SYSTEM AND SPEED VARIATOR COMPRISING SUCH A SYSTEM 有权
    开关电源系统和包含这种系统的速度变量器

    公开(公告)号:US20080080212A1

    公开(公告)日:2008-04-03

    申请号:US11862814

    申请日:2007-09-27

    Applicant: Petar Grbovic

    Inventor: Petar Grbovic

    CPC classification number: H02M3/3353 H02M2001/0074

    Abstract: The invention relates to a switched-mode power supply system comprising two buffer capacitors connected in series and connected between the two input terminals of a DC input voltage source, two switches connected in series, a primary inductive assembly connected in series with the two switches, and a secondary winding magnetically coupled to the primary inductive assembly in order to deliver a DC output voltage. A current injection module injects current at a mid-point of the two buffer capacitors in order to generate a current imbalance at this mid-point. A balancing circuit for balancing the leakage currents of the capacitors, one end of said balancing circuit being connected to the mid-point of the buffer capacitors, maintains this imbalance at a predetermined value. The invention also relates to a speed variator using such a power supply system.

    Abstract translation: 本发明涉及一种开关式电源系统,包括串联连接并连接在直流输入电压源的两个输入端之间的两个缓冲电容器,串联连接的两个开关,与两个开关串联连接的主感应组件, 以及次级绕组,其磁耦合到初级感应组件以便传递DC输出电压。 电流注入模块在两个缓冲电容器的中点处注入电流,以在该中点产生电流不平衡。 一种用于平衡电容器的漏电流的平衡电路,所述平衡电路的一端连接到缓冲电容器的中点,将该不平衡保持在预定值。 本发明还涉及一种使用这种电源系统的变速器。

Patent Agency Ranking