LLC converter includes a current variation detector for correcting a frequency adjusting control signal of an included difference detector
    1.
    发明授权
    LLC converter includes a current variation detector for correcting a frequency adjusting control signal of an included difference detector 失效
    LLC转换器包括用于校正所包括的差分检测器的频率调整控制信号的电流变化检测器

    公开(公告)号:US06437994B1

    公开(公告)日:2002-08-20

    申请号:US09830786

    申请日:2001-05-01

    IPC分类号: H02M3335

    CPC分类号: H02M3/3376

    摘要: An LLC power converter has an output voltage which is determined by a frequency controller controlling the frequency of an on and off switching of the switches (5, 6) of the converter. In order to stabilize the output voltage at varying output currents, a control circuit feeds back the variation of the total current (I) in the converter to the frequency controller (22, 25) for correcting the frequency of the on and off switching of the switches.

    摘要翻译: LLC功率转换器具有由控制转换器的开关(5,6)的接通和断开切换频率的频率控制器确定的输出电压。 为了在变化的输出电流下稳定输出电压,控制电路将转换器中的总电流(I)的变化反馈到频率控制器(22,25),用于校正频率控制器 开关。

    Electronic switching device
    2.
    发明授权
    Electronic switching device 有权
    电子开关装置

    公开(公告)号:US08766672B2

    公开(公告)日:2014-07-01

    申请号:US13469119

    申请日:2012-05-11

    IPC分类号: H03K3/00

    摘要: An electronic switching device comprises a first bipolar junction transistor (BJT) (2a) adapted to control the flow of current between a pair of switching terminals; a charge recovery circuit coupled to the base of the first BJT (2a) and adapted to establish a supply voltage across a capacitor (5) by storing in the capacitor (5) charge carriers accumulated in the base of the first BJT (2a) during application of a base drive current, the quantity of accumulated charge carriers depending on the base drive current; and a controllable current source (4) adapted to control the base drive current, thereby controlling the supply voltage.

    摘要翻译: 电子开关装置包括适于控制一对开关端子之间的电流的第一双极结型晶体管(BJT)(2a); 电荷恢复电路,其耦合到所述第一BJT(2a)的基极,并且适于通过在所述电容器(5)中存储累积在所述第一BJT(2a)的基极中的电荷载流子来建立电容器(5)两端的电源电压 施加基极驱动电流,累积电荷载体的数量取决于基极驱动电流; 以及适于控制基极驱动电流的可控电流源(4),从而控制电源电压。

    Power Supply System
    3.
    发明申请
    Power Supply System 审中-公开
    电源系统

    公开(公告)号:US20080186746A1

    公开(公告)日:2008-08-07

    申请号:US11814015

    申请日:2006-01-18

    IPC分类号: H02M7/04

    CPC分类号: H02M7/003 H02M3/33561

    摘要: A power supply system (1) comprises a power brick (3) which comprises a power converter (30) arranged in a first housing (2). The power converter (30) converts an AC-mains input voltage (VM) into an AC-output voltage (VO) which has a higher frequency than the AC-mains input voltage (VM). A power supply circuit (7) supplies a DC-voltage (PVi) to an application (8). The power supply circuit (7) and the application (8) both being arranged in a second housing (6) mechanically separated from the first housing (2). A cable (5) interconnects the power brick (3) and the power supply circuit (7) to supply the AC-output voltage (VO) to the power supply circuit (7). The power supply circuit (7) comprises a rectifier circuit (RE1, RE2, RE3) which rectifies the AC-output voltage (VO) to supply the DC-voltage (PVi) to the application (8).

    摘要翻译: 电源系统(1)包括电源砖(3),其包括布置在第一壳体(2)中的功率转换器(30)。 电力转换器(30)将交流电源输入电压(VM)转换成具有比交流电源输入电压(VM)更高的频率的交流输出电压(VO)。 电源电路(7)向应用(8)提供DC电压(PVi)。 电源电路(7)和应用(8)都布置在与第一壳体(2)机械分离的第二壳体(6)中。 电缆(5)将动力砖(3)和电源电路(7)相互连接,将AC输出电压(VO)提供给电源电路(7)。 电源电路(7)包括整流电路(RE 1,RE 2,RE 3),其对AC输出电压(VO)进行整流,以将DC电压(PVi)提供给应用(8)。

    Switched mode power supply having a boost converter operatively combined with a flyback converter
    4.
    发明授权
    Switched mode power supply having a boost converter operatively combined with a flyback converter 失效
    具有与反激转换器可操作组合的升压转换器的开关模式电源

    公开(公告)号:US06489754B2

    公开(公告)日:2002-12-03

    申请号:US10022126

    申请日:2001-10-30

    IPC分类号: G05F110

    CPC分类号: H02M3/155

    摘要: A switched mode power supply includes an input for receiving an input signal voltage, a flyback converter circuit arrangement and an output for delivering a regulated output signal voltage. The switched mode power supply further includes a boost converter arranged to be operatively combined with the flyback converter, and functioning such that the combined converter operates in a boost mode when the input voltage is above a threshold value, and in a flyback mode when the input voltage is below the threshold value.

    摘要翻译: 开关模式电源包括用于接收输入信号电压的输入端,反激式转换器电路装置和用于输出稳定输出信号电压的输出。 开关模式电源还包括升压转换器,其布置成与回扫转换器可操作地组合,并且起作用,使得当输入电压高于阈值时,组合转换器以升压模式工作,并且当输入 电压低于阈值。