KR950031677A - Vehicle power supply control circuit - Google Patents

Abstract

The present invention provides a power supply control mode unit at a predetermined position of a vehicle so that power is supplied to a lamp of a desired electric component according to a mode setting and power is not supplied to a lamp of an electric component that is not turned on unnecessarily. The present invention relates to a power supply control circuit of a vehicle, comprising: a start key contact switch (S1) which is switched on / off as a driver inserts or removes a start key, and a plurality of which perform predetermined lighting / flashing operation by the driver's operation. In a vehicle having a load (7, 8, 9, 10, 11) of the power supply, the mode can be set so that power is applied or not applied to the load (7, 8, 9, 10, 11) according to the driver's desire The control mode unit 3, the classifier 1 for changing the operating power source B ⁺ from the battery to a minute voltage, an amplifier 2 for amplifying the minute voltage from the classifier 1, and a predetermined reference. Voltage phase A comparator 4 which is enabled by a power-on control mode unit 3 and compares the input voltage through the amplifier 2 and the loads 7, 8, 9 according to the output signal of the comparator 4. And 10 and 11 further include first and second load driving units 5 and 6 for applying / blocking the operating power supplied to the power supply units 10 and 11.

Description

Vehicle power supply control circuit

Since this is an open matter, no full text was included.

1 is a power supply control circuit diagram of a vehicle according to an embodiment of the present invention.

Claims (4)

A start key contact switch S1 that is switched on / off as the driver inserts or removes the start key, and a plurality of loads 7, 8, 9, and 10 that perform predetermined lighting / flashing operations by the driver's operation. And a power supply control mode unit (3) capable of setting a mode in which power is applied or de-energized to the loads (7, 8, 9, 10, 11) according to a driver's wishes, and a battery The power supply control unit having a classifier 1 for changing the operating power source B ⁺ from the unit to a micro voltage, an amplifier 2 for amplifying the micro voltage from the classifier 1, and a predetermined reference voltage. The comparator 4 which is enabled by the mode unit 3 and compares the input voltage through the amplification 2 and the loads 7, 8, 9, according to the output signal of the comparator 4. 10 and 11 are further provided with first and second load driving parts 5 and 6 for applying / blocking the operating power supplied to Of the vehicle, characterized in that the power supply control circuit. The power supply control mode unit (3) according to claim 1, further comprising: the; As the start key contact switch S1 is turned on, a first mode is provided such that operating power is not applied to the desired loads 9, 10, and 11, and the loads 7, 8, 9, 10, and 11 are supplied to the loads. Mode II such that the operating power is not interrupted, and III which causes the operating power to all the loads 7, 8, 9, 10, 11 to be cut off regardless of the on / off state of the start key contact switch S1. Power supply control circuit of a vehicle, characterized in that configured in the mode. 3. The first and second load driving sections 5 and 6, respectively, according to claim 1 or 2, wherein each of the relays RL1 and RL2 maintains a normal temperature state, and And a relay driving element (Q1; Q2) for driving the relay (RL1; RL2) according to a mode setting. 4. The power supply control circuit of claim 3, wherein the relay driving elements (Q1; Q2) are made of switching transistors. ※ Note: The disclosure is based on the initial application.