汽车防盗报警定时器报警系统电路，节约模式。这的电路convenients设立在汽车。通常在切换设置保持与汽车门电路??关闭。但在车主的情况下打开，同时注意由于没有任何东西，因为PNP晶体管模型仍然不工作。由于9针，具有高电压。但是，任何一个打开电路开关门时超过时间延迟保持5引脚IC NE556具有低电压，充分驱动晶体管电路继电器工作。该系统将为了给喇叭的汽车在一次会谈来立刻。但是，如果我们关上了门，汽车或接近S1系统停止工作了。

　　Car Burglar Alarm timer alarm system circuit , model to economize. This circuit convenients for to set up in an automobile. usually switch at set up keep with automobile door will the circuit closes. But in case of car owner opens in and out while note as a result have no result anything , because of the transistor model PNP to still don’t work. Because of 9 pin have high voltage. But when switch the door any one open the circuit exceed time delay keep 5 pin of IC NE556 have low voltage to fully drive transistor circuit give relay work. The system will order to give the horn a car talks at one time to come to immediately. But if we shut the door a car or close S1 system stop work again.

控制开关的报警声。

　　该电路的心脏是IC 555号。是否发出警报声，当工作，即使开关将持续是相同的，声音仍然不停止immediately.But它会自动停止，当在设定的时间期间，根据R3的电阻，所以将电路的时间周期等于1M为1分6秒。

Alarm sound with control switch.

　　The heart of this circuit is IC No. 555. When the alert sound was working, even though the switch will continue to be the same, the sound still does not stop immediately.But it will stops automatically, when a set time period,Depending on the resistance of R3, the circuit so I set a time period equal to 1M for 1 minute 6 seconds.

　　IC 555的输出被触发，这将是一个正电压引脚2，当所有的交换机连接一起。东西开关被切断引脚2负电压和触发IC 555将停止。C1，C4无论从开关保护的噪声信号，这可能会导致报警。该电路可用于从5V到15V的电源根据继电器果然。
　　The output of IC 555 is triggered by a positive voltage on pin 2,when all switches are connected together.When the something switch is cut off pin 2, it will be negative voltage and the trigger IC 555 will stop. The C1, C4 to protects a noise signal from either switch, which may cause the alarm to be up. This circuit can be used with power supply from 5V to 15V depending on relay sure enough.