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    • 1. 发明申请
    • Method for operating an electronic module supplied with electrical energy by an operating voltage source
    • 用于通过工作电压源操作由电能供应的电子模块的方法
    • US20060012941A1
    • 2006-01-19
    • US10535740
    • 2003-09-25
    • Markus HeckelManfred Kulesch
    • Markus HeckelManfred Kulesch
    • F23Q5/00
    • B60R21/017H02J7/345
    • 1. A method for operating an electronic module which is supplied with electrical energy by an operating voltage source with a circuit unit for carrying out at least one system function, wherein in the event of an operating voltage interruption the operating voltage is supplied by a system-autonomous capacitor and wherein the system function can be activated by means of the energy reserve supplied by a function-autonomous capacitor and in which furthermore the system-autonomous capacitor is charged by a voltage converter connected to the operating voltage source. 2.1. From DE 197 15 571 A1 a control circuit for security units is known, wherein an up-converter fed by an on-board supply system supplies a system-autonomous capacitor, whose charging voltage serves as an operating voltage for the subsequently connected circuit units, in particular a down-converter, which on its part supplies for example ignition power modules as concerns the operating voltage, each of these power modules comprising its own ignition-autonomous capacitor. 2.2. In accordance with the invention the method is characterized in that the function-autonomous capacitor is connected to the voltage converter by means of a charging connection and that it can be controlled in order to fulfil various functions in different operating states, and that is both in a switching mode for clocking the charging current charging the function-autonomous capacitor, and in a current source mode wherein the charging connection operates as a controlled resistance, both for producing a constant discharging current for checking the system-autonomous capacitor and for producing a re-loading current for re-loading the function-autonomous capacitor.
    • 1.一种操作电子模块的方法,所述电子模块由操作电压源与用于执行至少一个系统功能的电路单元供应电能,其中在操作电压中断的情况下,所述工作电压由系统 自动电容器,其中系统功能可以通过由功能自主的电容器提供的能量储备来激活,此外,系统自主的电容器由连接到工作电压源的电压转换器充电。 2.1。 从安全单元的控制电路是已知的,其中由板载供电系统馈送的上变频器提供系统自主的电容器,其充电电压用作随后连接的电路单元的工作电压, 特别是下变频器,其在其部分上例如提供关于工作电压的点火功率模块,这些功率模块中的每一个包括其自己的点火自主电容器。 2.2。 根据本发明,该方法的特征在于功能自主的电容器通过充电连接连接到电压转换器,并且可以被控制以便在不同的工作状态下实现各种功能, 用于计时对功能自主电容器充电的充电电流的开关模式,以及其中充电连接作为受控电阻工作的电流源模式,用于产生用于检查系统自主电容器的恒定放电电流并用于产生再次充电 负载电流重新加载功能自主的电容器。