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    • 1. 发明授权
    • Bipolar power device having an integrated thermal protection for driving
electric loads
    • 具有用于驱动电负载的集成热保护的双极功率器件
    • US6051933A
    • 2000-04-18
    • US638382
    • 1996-04-26
    • Natale AielloAtanasio La BarberaSergio Palara
    • Natale AielloAtanasio La BarberaSergio Palara
    • H02H5/04H03K17/08H03K17/0812H05B41/285H05B37/00H03K17/56
    • H05B41/2856H03K17/08126H02H5/044H03K2017/0806
    • A monolithically integrated power device for driving electrical loads includes a power stage having a high-voltage bipolar transistor and a low-voltage auxiliary transistor cascade-connected and inserted between a first power supply terminal and a second power supply terminal of the device. The power device also includes a driver circuit for the power stage having an input connected to an input terminal of the device. In accordance with the present invention the device includes a circuit for protection thereof against an excessive temperature rise and controlling power down of the power stage. It includes specifically a temperature sensing circuit which generates a signal dependent on the temperature present in the device, a comparator circuit which receives this signal and compares it with a reference voltage and at least a first switch circuit generating an interdiction signal when the temperature in the device exceeds a preset maximum value and which is interlocked with an output of the comparator circuit and connected functionally through its output to the power stage. The device is advantageously usable in a fluorescent lamp driving circuit, that is to say in the so-called "lamp ballast".
    • 用于驱动电负载的单片集成功率器件包括具有高压双极晶体管的功率级和串联连接并插入在器件的第一电源端子和第二电源端子之间的低压辅助晶体管。 功率器件还包括用于功率级的驱动器电路,其具有连接到器件的输入端子的输入。 根据本发明,该装置包括用于保护其抵抗过度温度上升并控制功率级的掉电的电路。 其具体包括温度检测电路,其产生取决于设备中存在的温度的信号;比较器电路,其接收该信号并将其与参考电压进行比较;以及至少第一开关电路,当至少第一开关电路产生截止信号时, 器件超过预设的最大值,并与比较器电路的输出互锁,并通过其输出功能级连接到功率级。 该装置有利地可用于荧光灯驱动电路,也就是说在所谓的“灯镇流器”中。
    • 2. 发明授权
    • Voltage converter circuit having a self-oscillating half-bridge structure
    • 具有自振荡半桥结构的电压转换器电路
    • US06349048B2
    • 2002-02-19
    • US09747171
    • 2000-12-21
    • Vincenzo RandazzoNatale AielloAtanasio La Barbera
    • Vincenzo RandazzoNatale AielloAtanasio La Barbera
    • H02M75387
    • H02M7/53862H02M3/3382H02M7/53832H02M7/53846H05B41/2828Y02B20/185
    • A voltage converter circuit with a self-oscillating half-bridge configuration has a first and a second input terminal, and a first and a second output terminal, and including: a first power switch coupled between the first input terminal and the first output terminal, a second power switch coupled between the first output terminal and the second input terminal, a first voltage sensor having a first and a second sensing terminals coupled between the first input terminal and a control terminal of the first power switch, and a second voltage sensor having a first and a second sensing terminals coupled between the first output terminal and a control terminal of the second power switch. Each voltage sensor 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.
    • 具有自振荡半桥结构的电压转换器电路具有第一和第二输入端以及第一和第二输出端,并且包括:耦合在第一输入端和第一输出端之间的第一功率开关, 耦合在所述第一输出端子和所述第二输入端子之间的第二电源开关,具有耦合在所述第一输入端子和所述第一电源开关的控制端子之间的第一和第二感测端子的第一电压传感器,以及具有 耦合在第一输出端子和第二电源开关的控制端子之间的第一和第二感测端子。 每个电压传感器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的激活电位。
    • 6. 发明授权
    • Circuit for controlling the switching of a load by means of an emitter-switching device
    • 用于通过发射极开关器件控制负载开关的电路
    • US06255890B1
    • 2001-07-03
    • US09314924
    • 1999-05-19
    • Natale AielloAtanasio La Barbera
    • Natale AielloAtanasio La Barbera
    • H03K1760
    • H03K17/567
    • A circuit controls switching of a load between two supply terminals by a device in an emitter-switching configuration formed by a high-voltage bipolar power transistor and a low-voltage switch element. The bipolar power transistor has a collector connected to the load. The switch element has a first terminal connected to the emitter of the bipolar power transistor, a second terminal connected to ground, and a control terminal connected to a control terminal of the circuit. The circuit has a biasing circuit connected to a base terminal of the bipolar power transistor. To ensure that the bipolar power transistor operates in the saturation region throughout the period of conduction, even with a sinusoidal driving voltage, the biasing circuit includes a capacitive device and a charging circuit for charging the capacitive device to bias the base of the bipolar power transistor.
    • 电路通过由高压双极型功率晶体管和低压开关元件形成的发射极切换配置中的器件来控制两个电源端子之间的负载开关。 双极功率晶体管具有连接到负载的集电极。 开关元件具有连接到双极功率晶体管的发射极的第一端子,连接到地的第二端子以及连接到电路的控制端子的控制端子。 电路具有连接到双极功率晶体管的基极的偏置电路。 为了确保双极功率晶体管在整个传导周期期间在饱和区域中工作,即使采用正弦驱动电压,偏置电路也包括电容器件和充电电路,用于对电容器件充电以偏置双极功率晶体管的基极 。
    • 10. 发明授权
    • IC for implementing the function of a DIAC diode
    • 用于实现DIAC二极管功能的IC
    • US5986411A
    • 1999-11-16
    • US021289
    • 1998-02-10
    • Stefano SueriAtanasio La BarberaNatale AielloVito Graziano
    • Stefano SueriAtanasio La BarberaNatale AielloVito Graziano
    • H03K17/30H05B41/282H05B37/02
    • H03K17/30H05B41/2825Y10S315/07
    • The present invention relates to an integrated circuit adapted to perform the function of a diode of the DIAC type, the circuit having an input terminal and an output terminal. The circuit includes a first input transistor having a first terminal connected to a fixed voltage reference, a second terminal, and a control terminal coupled to the input terminal of the circuit. The circuit further includes second and third transistors in a current mirror configuration, each having a first terminal for coupling to the input terminal of the circuit, and a second terminal, and associated control terminals connected together and coupled to the second terminal of the first input transistor, the second terminal of the second transistor being connected to the control terminal of the first transistor. Finally, the circuit includes a fourth output transistor connected, with first and second terminals, between the output terminal and the input terminal of the circuit, the fourth output transistor also having a control terminal connected to the second terminal of the third transistor.
    • 本发明涉及一种适用于执行DIAC型二极管功能的集成电路,该电路具有输入端和输出端。 电路包括具有连接到固定电压基准的第一端子,第二端子和耦合到电路的输入端子的控制端子的第一输入晶体管。 电路还包括电流镜配置中的第二和第三晶体管,每个晶体管具有用于耦合到电路的输入端的第一端子和第二端子,以及连接在一起并耦合到第一输入端的第二端子的相关联的控制端子 晶体管,第二晶体管的第二端子连接到第一晶体管的控制端子。 最后,电路包括第四输出晶体管,与第一和第二端子连接在输出端子和电路的输入端之间,第四输出晶体管还具有连接到第三晶体管的第二端子的控制端子。