Voltage converter circuit with self oscillating half bridge configuration and with protection against hard switching
    1.
    发明公开
    Voltage converter circuit with self oscillating half bridge configuration and with protection against hard switching 有权
    Spannungsumwandlerschaltung与自振荡半桥配置和对硬开关保护

    公开(公告)号:EP1176707A1

    公开(公告)日:2002-01-30

    申请号:EP00830497.4

    申请日:2000-07-17

    CPC classification number: H05B41/2856 H02M1/32 H02M7/53832 Y02B20/185

    Abstract: The voltage converter circuit (20) has first and second input terminals (21a, 21b), and first and second output nodes (22a, 22b), and comprises: a first power switch (60) connected between the first input terminal (21a) and the first output terminal (22a); a second power switch (70) connected between the first output terminal (22a) and the second input terminal (21b); a first delay circuit (64) having first and second terminals connected between the first input terminal (21a) and a control terminal (61) of the first power switch (60); and a second delay circuit (74) having first and second terminals connected between the first output terminal (22a) and a control terminal (70) of the second power switch (70). Each delay circuit (64, 74) detects a variation in the voltage supplied on the respective first terminal and detects an operating condition of the respective power switch (60, 70) on the second terminal, and supplies to the control terminal (61, 71) of the respective power switch (60, 70) a switching on delay signal (E).

    Abstract translation: 电压转换器电路(20)具有第一和第二输入端子(21A,21B),和第一和第二输出节点(22A,22B),并且包括:连接在第一输入端子(21A)之间的第一电源开关(60) 和第一输出端(22A); 连接在所述第一输出端(22A)和所述第二输入端之间的第二电源开关(70)(图21B); 具有连接在所述第一输入端子(21a)和所述第一电源开关(60)的控制端子(61)之间的第一和第二端子的第一延迟电路(64); 并具有连接在所述第一输出端(22A)和所述第二电源开关(70)的控制端子(70)之间的第一和第二端子的第二延迟电路(74)。 每个延迟电路(64,74)检测供给的respectivement第一端子上的电压的变化和在第二终端上检测到respectivement电源开关的操作条件(60,70),并提供给控制端子(61,71 )所述respectivement电源开关(60,70)上的延迟信号(e)的切换的。

    Voltage converter circuit having a self-oscillating half-bridge structure
    4.
    发明公开
    Voltage converter circuit having a self-oscillating half-bridge structure 有权
    Spannungsumrichter mit einer selbstschwingendenHalbbrückenstruktur

    公开(公告)号:EP1111765A1

    公开(公告)日:2001-06-27

    申请号:EP99830799.5

    申请日:1999-12-24

    Abstract: The voltage converter circuit (20) with a self-oscillating half-bridge configuration has a first and a second input terminal (21a, 21b), and a first and a second output terminal (22a, 22b), and includes: a first power switch (60) coupled between the first input terminal (21a) and the first output terminal (22a), a second power switch (80) coupled between the first output terminal (22a) and the second input terminal (21b), a first voltage sensor (70) having a first and a second sensing terminals coupled between the first input terminal (21a) and a control terminal (61) of the first power switch (60), and a second voltage sensor (90) having a first and a second sensing terminals coupled between the first output terminal (22a) and a control terminal (81) of the second power switch (80). Each voltage sensor (70, 90) detects a voltage variation supplied on its respective first sensing terminal and generates on the respective second sensing terminal an activation potential for the respective power switch (60, 80).

    Abstract translation: 具有自振荡半桥结构的电压转换器电路(20)具有第一和第二输入端子(21a,21b)以及第一和第二输出端子(22a,22b),并且包括:第一功率 开关(60),耦合在第一输入端子(21a)和第一输出端子(22a)之间,耦合在第一输出端子(22a)和第二输入端子(21b)之间的第二电源开关(80) 传感器(70)具有耦合在第一输入端子(21a)和第一电源开关(60)的控制端子(61)之间的第一和第二感测端子,以及第二电压传感器(90) 第二感测端子耦合在第一输出端子(22a)和第二电源开关(80)的控制端子(81)之间。 每个电压传感器(70,90)检测在其相应的第一感测端子上提供的电压变化,并在相应的第二感测端子上产生用于各个电力开关(60,80)的激活电位。

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