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    • 8. 发明公开
    • Power switch circuit for driving an airbag squib module
    • LeistungsschaltkreisfüreineAirbagzündpille
    • EP1769974A1
    • 2007-04-04
    • EP05021518.5
    • 2005-09-30
    • Infineon Technologies AG
    • Glaeser, JoachimPiccolella, SalvatoreFlore, AlbertoMacri, NicolaLenz, MichaelChiozzi, GiorgioGola, Alberto
    • B60R21/01H03K17/041
    • H03K17/04106Y10T307/799
    • A power switch circuit for driving an airbag squib module comprises a power transistor (110), a pre-charge capacitance (120) for storing a charge, a charging circuit (140) and a controllable energy-coupling element. The power transistor (110) has a first electrode (E1), a second electrode (E2) and a control electrode. A path between the first electrode (E1) and the second electrode (E2) is connected in series with the airbag squib module (120) between a supply potential (V SUP ) and a reference potential (V REF ). The charging circuit (140) charges the pre-charge capacitance (130) and the charging circuit (140) is therefore coupled with the pre-charged capacitance (130). The controllable energy coupling element (134) is connected between a first electrode of the pre-charge capacitance (130) and the control electrode (control) of the power transistor (110). The inventive power switch exhibits a high degree of stability, allows a fast switching of the power transistor (110) and further comprises an advantageous transient response.
    • 用于驱动气囊爆管模块的电源开关电路包括功率晶体管(110),用于存储电荷的预充电电容(120),充电电路(140)和可控能量耦合元件。 功率晶体管(110)具有第一电极(E1),第二电极(E2)和控制电极。 第一电极(E1)和第二电极(E2)之间的路径与电源电位(V SUP)和参考电位(V REF)之间的气囊点火组件(120)串联连接。 充电电路(140)对预充电电容(130)充电,因此充电电路(140)与预充电电容(130)耦合。 可控能量耦合元件(134)连接在预充电电容(130)的第一电极和功率晶体管(110)的控制电极(控制)之间。 本发明的功率开关表现出高度的稳定性,允许功率晶体管(110)的快速切换,并且还包括有利的瞬态响应。
    • 9. 发明公开
    • DC power source determination circuitry for use with an adapter
    • Gleichstromquellenbestimmungsschaltung zur Anwendung mit einem适配器
    • EP1555733A2
    • 2005-07-20
    • EP05250133.5
    • 2005-01-13
    • Comarco Wireless Technologies, Inc.
    • Lanni, Thomas W.
    • H02J7/00H02M1/10
    • H02J7/0055H02J7/0029Y10T307/799
    • An adapter device includes a DC/DC adapter to receive DC power from a DC power source, and output a regulated DC voltage (V out ). A source determination circuitry receives the DC power from the DC power source and compares a magnitude of a voltage of the DC power with a reference magnitude of a reference voltage (V ref ). When the magnitude of the voltage of the DC power is greater than the reference magnitude, a data signal (V data ) having a first value is output. When the magnitude of the voltage of the DC power is less than the reference magnitude, the V data signal having a second value is output. The V data signal is received by control circuitry of an electronic device. When the V data signal has the first value, the electronic device operates in a first mode where battery charging circuitry is disabled. When the V data signal has the second value, the battery charging circuitry is enabled.
    • 适配器装置包括用于从DC电源接收DC电力并输出稳压DC电压(V out)的DC / DC适配器。 源确定电路从DC电源接收DC电力,并将DC功率的电压的大小与参考电压(V ref)的参考幅度进行比较。 当DC功率的电压的大小大于基准幅度时,输出具有第一值的数据信号(V data)。 当DC功率的电压的大小小于参考值时,输出具有第二值的V数据信号。 V数据信号由电子设备的控制电路接收。 当V数据信号具有第一值时,电子设备在禁用电池充电电路的第一模式下工作。 当V数据信号具有第二值时,电池充电电路被使能。