Circuit arrangement for the operation of a switching transistor
    1.
    发明授权
    Circuit arrangement for the operation of a switching transistor 有权
    用于开关晶体管操作的电路布置

    公开(公告)号:US07212029B2

    公开(公告)日:2007-05-01

    申请号:US11092325

    申请日:2005-03-29

    IPC分类号: H03K19/003 H03K19/0175

    CPC分类号: H03K17/163

    摘要: The circuit arrangement comprises a driver stage and a control circuit coupled to the control input of a switching transistor. The driver stage provides a switching voltage for the operation of the switching transistor, and the control circuit provides a shaping of the switching voltage in the sense of delaying the switching through of the switching transistor. The control circuit comprises in particular a control transistor, which is coupled a control input via a high pass filter to the output of the driver stage and with an current input to the control input of the switching transistor. The switching transistor is for example a MOSFET being used for switching on and off a capacitive load.

    摘要翻译: 电路装置包括驱动级和耦合到开关晶体管的控制输入端的控制电路。 驱动器级为开关晶体管的操作提供开关电压,并且控制电路在延迟开关晶体管的切换的意义上提供开关电压的整形。 控制电路特别包括控制晶体管,其通过高通滤波器将控制输入耦合到驱动级的输出端,并将电流输入耦合到开关晶体管的控制输入端。 开关晶体管例如是用于接通和断开电容性负载的MOSFET。

    Circuit arrangement for the operation of a switching transistor
    2.
    发明申请
    Circuit arrangement for the operation of a switching transistor 有权
    用于开关晶体管操作的电路布置

    公开(公告)号:US20050225356A1

    公开(公告)日:2005-10-13

    申请号:US11092325

    申请日:2005-03-29

    CPC分类号: H03K17/163

    摘要: The circuit arrangement comprises a driver stage and a control circuit coupled to the control input of a switching transistor. The driver stage provides a switching voltage for the operation of the switching transistor, and the control circuit provides a shaping of the switching voltage in the sense of delaying the switching through of the switching transistor. The control circuit comprises in particular a control transistor, which is coupled a control input via a high pass filter to the output of the driver stage and with an current input to the control input of the switching transistor. The switching transistor is for example a MOSFET being used for switching on and off a capacitive load.

    摘要翻译: 电路装置包括驱动级和耦合到开关晶体管的控制输入端的控制电路。 驱动器级为开关晶体管的操作提供开关电压,并且控制电路在延迟开关晶体管的切换的意义上提供开关电压的整形。 控制电路特别包括控制晶体管,其通过高通滤波器将控制输入耦合到驱动级的输出端,并将电流输入耦合到开关晶体管的控制输入端。 开关晶体管例如是用于接通和断开电容性负载的MOSFET。

    Over-voltage protection circuit for a switched mode power supply
    3.
    发明授权
    Over-voltage protection circuit for a switched mode power supply 有权
    开关电源的过电压保护电路

    公开(公告)号:US07379310B2

    公开(公告)日:2008-05-27

    申请号:US11114208

    申请日:2005-04-22

    IPC分类号: H02H7/10 H02H7/00 H02H3/20

    CPC分类号: H02M1/32

    摘要: The switched mode power supply comprises an inductor, a switching transistor, a controller circuit coupled to the switching transistor, a rectifying means and a feedback regulation loop for providing a stabilised output voltage. It comprises further a protection circuit coupled to an output or input of a comparator of the controller circuit for providing an overvoltage protection in case of a failure of the regulation loop. The protection circuit comprises in particular an integrating circuit and a comparating circuit. In a preferred embodiment, an output of the protection circuit is coupled to a sense input of the controller circuit, for switching off the controller circuit immediately in case of a failure. In another aspect of the invention, the protection circuit comprises further a second comparator coupled to the first comparating circuit for the surveillance of the input voltage of the switched mode power supply, and for the detection of a short circuit of the inductor or the rectifying means.

    摘要翻译: 开关模式电源包括电感器,开关晶体管,耦合到开关晶体管的控制器电路,整流装置和用于提供稳定输出电压的反馈调节环路。 其还包括耦合到控制器电路的比较器的输出或输入的保护电路,用于在调节环路故障的情况下提供过压保护。 保护电路特别包括积分电路和比较电路。 在优选实施例中,保护电路的输出耦合到控制器电路的感测输入,用于在发生故障的情况下立即关闭控制器电路。 在本发明的另一方面,保护电路还包括耦合到第一比较电路的第二比较器,用于监视开关模式电源的输入电压,并且用于检测电感器或整流装置的短路 。

    Protection circuit for a switched mode power supply
    4.
    发明申请
    Protection circuit for a switched mode power supply 有权
    开关电源的保护电路

    公开(公告)号:US20050237044A1

    公开(公告)日:2005-10-27

    申请号:US11114208

    申请日:2005-04-22

    CPC分类号: H02M1/32

    摘要: The switched mode power supply comprises an inductor, a switching transistor, a controller circuit coupled to the switching transistor, a rectifying means and a feedback regulation loop for providing a stabilised output voltage. It comprises further a protection circuit coupled to an output or input of a comparator of the controller circuit for providing an overvoltage protection in case of a failure of the regulation loop. The protection circuit comprises in particular an integrating circuit and a comparating circuit. In a preferred embodiment, an output of the protection circuit is coupled to a sense input of the controller circuit, for switching off the controller circuit immediately in case of a failure. In another aspect of the invention, the protection circuit comprises further a second comparator coupled to the first comparating circuit for the surveillance of the input voltage of the switched mode power supply, and for the detection of a short circuit of the inductor or the rectifying means.

    摘要翻译: 开关模式电源包括电感器,开关晶体管,耦合到开关晶体管的控制器电路,整流装置和用于提供稳定输出电压的反馈调节环路。 其还包括耦合到控制器电路的比较器的输出或输入的保护电路,用于在调节环路故障的情况下提供过压保护。 保护电路特别包括积分电路和比较电路。 在优选实施例中,保护电路的输出耦合到控制器电路的感测输入,用于在发生故障的情况下立即关闭控制器电路。 在本发明的另一方面,保护电路还包括耦合到第一比较电路的第二比较器,用于监视开关模式电源的输入电压,并且用于检测电感器或整流装置的短路 。

    Power supply unit
    5.
    发明授权
    Power supply unit 有权
    供电单元

    公开(公告)号:US07532494B2

    公开(公告)日:2009-05-12

    申请号:US11136646

    申请日:2005-05-24

    IPC分类号: H02M7/217

    CPC分类号: H04N5/63 Y10T307/713

    摘要: Embodiments of the invention provide a power supply unit that operates in a standby mode and in a normal mode. The power supply unit comprises a first power supply providing output voltages during the standby mode and a second power supply providing output voltages during the normal mode. A pre-converter provides a stabilized supply voltage for the first and second power supply. The pre-converter operates as an up-converter during the normal operation mode and is switched off during the standby mode together with the second power supply.

    摘要翻译: 本发明的实施例提供一种在待机模式和正常模式下工作的电源单元。 电源单元包括在待机模式期间提供输出电压的第一电源和在正常模式期间提供输出电压的第二电源。 预转换器为第一和第二电源提供稳定的电源电压。 预转换器在正常操作模式期间用作升压转换器,并在待机模式下与第二电源一起关闭。

    Power supply unit
    6.
    发明申请

    公开(公告)号:US20060267565A1

    公开(公告)日:2006-11-30

    申请号:US11136646

    申请日:2005-05-24

    IPC分类号: G05F1/00 H04N5/63

    CPC分类号: H04N5/63 Y10T307/713

    摘要: Embodiments of the invention provide a power supply unit that operates in a standby mode and in a normal mode. The power supply unit comprises a first power supply providing output voltages during the standby mode and a second power supply providing output voltages during the normal mode. A pre-converter provides a stabilized supply voltage for the first and second power supply. The pre-converter operates as an up-converter during the normal operation mode and is switched off during the standby mode together with the second power supply.

    Driver circuit for driving a switching transistor
    7.
    发明授权
    Driver circuit for driving a switching transistor 失效
    用于驱动开关晶体管的驱动电路

    公开(公告)号:US06917225B2

    公开(公告)日:2005-07-12

    申请号:US10428654

    申请日:2003-05-02

    摘要: The driver circuit for driving a switching transistor comprises a driver transformer for driving the switching transistor and an output stage for driving the driver transformer, and an output of the driver circuit is used for providing also said switching voltage. The switching voltage is derived advantageously from the primary winding of the driver transformer. Preferably a terminal of the primary winding of the driver transformer is directly wired to the gate electrode of the MOS transistor.

    摘要翻译: 用于驱动开关晶体管的驱动电路包括用于驱动开关晶体管的驱动器变压器和用于驱动驱动器变压器的输出级,并且驱动电路的输出也用于提供所述开关电压。 开关电压有利地来自驱动器变压器的初级绕组。 优选地,驱动器变压器的初级绕组的端子直接连接到MOS晶体管的栅电极。

    High voltage supply for a picture tube
    8.
    发明授权
    High voltage supply for a picture tube 失效
    高压电源用于显像管

    公开(公告)号:US06856104B2

    公开(公告)日:2005-02-15

    申请号:US10470798

    申请日:2002-01-21

    IPC分类号: H04N3/185 H04N3/26 H01J29/52

    CPC分类号: H04N3/26 H04N3/185

    摘要: The high voltage supply for a picture tube comprises a high voltage transformer, which generates the anode voltage of the picture tube, and a high voltage module with a switched mode power supply for providing a grid voltage, which is higher than the anode voltage. The output of the high voltage transformer is coupled to the transformer of the switched mode power supply, for adding the output voltage of the switched mode power supply to the high voltage of the high voltage transformer. Preferably, the transformer of the switched mode power supply provides the high voltage isolation, and at least the high voltage part of the module including the transformer is potted with a resin. The high voltage module provides advantageously also an output for a connection to the anode of the picture tube, so that the module can be used with present high voltage transformers, without requiring any modification. The primary side of the switched mode power supply comprises a control stage with adjustable means for setting a specific output voltage of the power supply. In a preferred embodiment, this output voltage is adjustable between 300 and 500 Volts, with respect to the high voltage of the high voltage transformer.

    摘要翻译: 用于显像管的高压电源包括产生显象管的阳极电压的高压变压器和具有高于阳极电压的开关模式电源的高压模块,用于提供电网电压。 高压变压器的输出耦合到开关模式电源的变压器,用于将开关模式电源的输出电压加到高压变压器的高电压上。 优选地,开关模式电源的变压器提供高电压隔离,并且至少包括变压器的模块的高电压部分用树脂封装。 高电压模块还有利地提供用于与显像管的阳极的连接的输出,使得该模块可以与当前的高压变压器一起使用,而不需要任何修改。 开关模式电源的初级侧包括具有用于设定电源的特定输出电压的可调整装置的控制级。 在优选实施例中,相对于高压变压器的高电压,该输出电压可在300和500伏特之间调节。

    Switching DC-DC converter with parallel switches
    10.
    发明授权
    Switching DC-DC converter with parallel switches 有权
    开关并联开关DC-DC转换器

    公开(公告)号:US07525295B2

    公开(公告)日:2009-04-28

    申请号:US11168963

    申请日:2005-06-28

    IPC分类号: G05F1/00

    CPC分类号: H03K17/615 H02M3/156

    摘要: The switching DC-DC converter comprises an inductor, a diode, a transistor and an integrated control circuit with an output switch, the output switch and the diode being coupled to the inductor for providing a DC output voltage. The transistor is coupled with a current input to an input voltage, with a control input to a current input of the output switch, and with a current output to a current output of the output switch.

    摘要翻译: 开关DC-DC转换器包括电感器,二极管,晶体管和具有输出开关的集成控制电路,输出开关和二极管耦合到电感器以提供DC输出电压。 晶体管与电流输入耦合到输入电压,其中输入到输出开关的电流输入的控制输入,以及电流输出到输出开关的电流输出。