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    • 5. 发明授权
    • Monolithically integrated MOS output-stage component with
overload-protection means
    • 具有过载保护功能的单片式MOS输出级元件
    • US5523714A
    • 1996-06-04
    • US256213
    • 1994-06-24
    • Rainer ToppManfred Uebele
    • Rainer ToppManfred Uebele
    • H03K17/08H03K17/082H03K17/14H03K17/687H03K3/42H03K5/08
    • H03K17/145H03K17/0822
    • A monolithically integrated MOS output-stage component is proposed which is provided with an output-stage element (10) having a GATE connection, a SOURCE connection, and a DRAIN connection, and having an overload-protection device. An integrated GATE series resistor (11) is provided which connects an outer GATE connection (Ga) of the output-stage component with the GATE connection (Gi) of the output-stage element (10). The overload-protection device is integrated in the output-stage component and has a level matching stage (30) which, by a defined flow through the GATE series resistor (11), effects a displacement of the transmission characteristic of the output-stage element (10) by a defined voltage offset value. Furthermore, a limiting stage (34) is provided which limits the sum value of the DRAIN-SOURCE voltage and a voltage proportional to the DRAIN current to a determinable value. In this way, an overload-protection device in monolithically integrated form is obtained at favorable cost with improved protective function, in which connection the physical limits of the semiconductor can be more strongly utilized.
    • PCT No.PCT / DE93 / 00949 Sec。 371日期:1994年6月24日 102(e)日期1994年6月24日PCT提交1993年10月7日PCT公布。 公开号WO94 / 10753 日期为1994年5月11日。提出了具有GATE连接,SOURCE连接和DRAIN连接的输出级元件(10)并具有过载保护装置的单片集成MOS输出级组件。 提供集成的GATE串联电阻器(11),其将输出级组件的外部GATE连接(Ga)与输出级元件(10)的GATE连接(Gi)连接。 过载保护装置集成在输出级组件中,具有电平匹配级(30),通过GATE串联电阻(11)的限定流量,可以实现输出级元件的传输特性的位移 (10)通过定义的电压偏移值。 此外,提供限制级(34),其将漏极 - 源极电压的和值和与漏极电流成比例的电压限制到可确定的值。 以这种方式,通过改进的保护功能,以良好的成本获得了单片集成形式的过载保护装置,其中连接可以更有力地利用半导体的物理极限。
    • 6. 发明授权
    • Circuit for protecting a MOSFET power transistor
    • 用于保护MOSFET功率晶体管的电路
    • US5424892A
    • 1995-06-13
    • US256485
    • 1994-07-06
    • Rainer ToppRoland SchmidDagmar Oertel
    • Rainer ToppRoland SchmidDagmar Oertel
    • H03K17/08H03K17/0412H03K17/082H03K17/687H02H9/02
    • H03K17/04123H03K17/0822H01L2924/0002Y10S323/908
    • A circuit for protecting a MOSFET power transistor, the circuit having a variable input impedance in which the rate of rise of voltage is to be increased and thus the switching time reduced. For this purpose, a second MOSFET auxiliary transistor is connected by its bulk electrode to the source of the MOSFET power transistor. The source of the second MOSFET auxiliary transistor is connected to the gate of a third MOSFET auxiliary transistor and to the gate of the MOSFET power transistor. The drain of the second MOSFET auxiliary transistor is connected to a circuit input terminal which is coupled by a resistor to the gate of the MOSFET power transistor. The gate of the second MOSFET auxiliary transistor is connected to the drain of the second MOSFET auxiliary transistor as well as to the source of the third MOSFET auxiliary transistor. The drain of the third MOSFET auxiliary transistor is connected to the gate of the MOSFET power transistor, and the bulk electrode of the third MOSFET auxiliary transistor is connected to the source electrode of the MOSFET power transistor.
    • PCT No.PCT / DE93 / 01029 Sec。 371日期:1994年7月6日 102(e)日期1994年7月6日PCT 1993年10月28日PCT公布。 第WO94 / 11947号公报 日期1994年5月26日。一种用于保护MOSFET功率晶体管的电路,该电路具有可变输入阻抗,其中电压的上升速率将增加,因此切换时间减少。 为此,第二个MOSFET辅助晶体管通过其体电极连接到MOSFET功率晶体管的源极。 第二MOSFET辅助晶体管的源极连接到第三MOSFET辅助晶体管的栅极和MOSFET功率晶体管的栅极。 第二MOSFET辅助晶体管的漏极连接到电路输入端,该电路输入端通过电阻耦合到MOSFET功率晶体管的栅极。 第二MOSFET辅助晶体管的栅极连接到第二MOSFET辅助晶体管的漏极以及第三MOSFET辅助晶体管的源极。 第三MOSFET辅助晶体管的漏极连接到MOSFET功率晶体管的栅极,第三MOSFET辅助晶体管的体电极连接到MOSFET功率晶体管的源极。