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发明公开
CN102785625A 车载电子控制装置 有权

车载电子控制装置
摘要：
本发明的目的在于提供一种车载电子控制装置，该车载电子控制装置对内置有备用断路开关的微处理器提供简单的稳压电源电路。对于从车载电池(101)通过电源继电器的输出触点(102a)进行供电的第2稳压电源电路(20S)，通过串联电阻(41)，与从车载电池(101)直接供电的第4稳压电源电路(40D)进行并联连接，从而与微处理器(120A)的驱动电源端子相连接。在输出触点(102a)闭合时，微处理器利用第2稳压电源电路(20S)的输出电压进行动作，第4稳压电源电路的输出电流由串联电阻(41)而限定在规定值以下。在电源开关(103)断开而停止运行时，从第4稳压电源电路(40D)向微处理器提供微小的备用电流。
摘要（英）：

A fourth constant-voltage power circuit (40D) directly powered from an on-vehicle battery (101) is connected, in parallel through a serial resistor (41), to a second constant-voltage power circuit (20S) powered from the on-vehicle battery through an output contact (102a) of a power relay, and is connected to a drive power terminal of a microprocessor. When the output contact is closed, the microprocessor (120A) operates with an output voltage of the second constant-voltage power circuit, and an output current of the fourth constant-voltage power circuit (40d) is limited to less than or equal to a predetermined value by the serial resistor (41). During the operation stop at which a power switch (103) is open, a micro standby current is supplied from the fourth constant-voltage power circuit (40D) to the microprocessor.

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