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    • 5. 发明授权
    • Circuit for the protection against overcurrents in power electronic
devices and corresponding method
    • 电力电子设备过流保护电路及相应的方法
    • US5764460A
    • 1998-06-09
    • US771539
    • 1996-12-23
    • Leonardo PerilloGiuseppe Scilla
    • Leonardo PerilloGiuseppe Scilla
    • G05F1/569H03F1/52H02H7/00
    • G05F1/569H03F1/52
    • A circuit for protecting from overload currents includes an electronic power device having at least first and second terminals and at least one control terminal. The circuit also includes at least one voltage-generating circuit for generating a reference voltage having a predetermined pattern. The voltage-generating circuit includes at least a first terminal connected to the first terminal of the power device and at least a second terminal coupled to the second terminal of the power device through a sensor. The circuit also preferably includes at least one comparator for comparing the reference voltage with a voltage present across the sensor. The comparator has at least one output terminal and at least first and second input terminals. The first and second input terminals are respectively connected to a third terminal of the voltage-generating circuit and the second terminal of the power device. The circuit also includes at least one current limiter having at least a first terminal connected to the control terminal of the power device, at least a second terminal connected to the second terminal of the voltage-generating circuit, and at least one control terminal connected to the output terminal of the comparator.
    • 用于防止过载电流的电路包括具有至少第一和第二端子以及至少一个控制端子的电子功率器件。 该电路还包括用于产生具有预定图案的参考电压的至少一个电压产生电路。 电压发生电路至少包括连接到功率器件的第一端子的第一端子和至少一个通过传感器耦合到功率器件的第二端子的第二端子。 电路还优选地包括至少一个用于将参考电压与传感器两端存在的电压进行比较的比较器。 比较器具有至少一个输出端子和至少第一和第二输入端子。 第一和第二输入端子分别连接到电压发生电路的第三端子和功率器件的第二端子。 电路还包括至少一个限流器,其至少具有连接到电力设备的控制端的第一端子,至少连接到电压发生电路的第二端子的第二端子,以及至少一个控制端子,连接到 比较器的输出端子。
    • 6. 发明授权
    • Integrated device with a bipolar transistor and a MOSFET transistor in
an emitter switching configuration
    • 具有双极晶体管的集成器件和发射极开关配置中的MOSFET晶体管
    • US5665994A
    • 1997-09-09
    • US307877
    • 1994-09-16
    • Sergio Palara
    • Sergio Palara
    • H01L29/73H01L21/331H01L21/8249H01L27/06H01L29/732H01L29/78H01L29/76H01L29/00
    • H01L27/0635H01L27/0623
    • A device integrated on a chip of a semiconductor material is disclosed which comprises an NPN bipolar transistor and an N-channel MOSFET transistor in an emitter switching configuration, both being vertical conduction types. The bipolar transistor has its base and emitter regions buried; the MOSFET transistor is formed with an N region bounded by the base and the emitter regions and isolated by a deep base contact and isolation region. To improve the device performance, especially at large currents, an N+ region is provided which extends from the front of the chip inwards of the isolated region and around the MOSFET transistor. In one embodiment of the invention, a MOSFET drive transistor is integrated which has its drain terminal in common with the collector of the bipolar transistor, its source terminal connected to the base of the bipolar transistor, and its gate electrode connected to the gate electrode of the MOSFET transistor in the emitter switching configuration.
    • 公开了集成在半导体材料的芯片上的器件,其包括NPN双极晶体管和发射极开关配置中的N沟道MOSFET晶体管,均为垂直导电类型。 双极晶体管的基极和发射极区域被埋置; MOSFET晶体管形成有由基极和发射极区限制的N区,并由深的基极接触和隔离区隔离。 为了提高器件性能,特别是在大电流下,提供了从隔离区域的内部向外延伸到MOSFET晶体管的N +区。 在本发明的一个实施例中,集成MOSFET驱动晶体管,其漏极端子与双极晶体管的集电极共同,其源极端子连接到双极晶体管的基极,并且其栅电极连接到双极晶体管的栅极 MOSFET晶体管处于发射极开关配置。