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Temperature/Voltage Monitoring System Circuit Composed Of MA

2014-11-08 09:51  
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Temperature/Voltage Monitoring System Circuit Composed Of MAX1298
Ad shown in the picture, the circuit could measure two channels of temperature and one channel of battery voltage at the same time. It uses +5V power supply. The temperature sensor's wire shound need the shielded twisted pair. The shielded layer is connected to SHO pin. The C1 is a power noise-reduction capacitor. The C2 is used to filter output the noise of the referenced voltage. By using μC it could set the MAX1298's power working mode and read the MAX1298's output data, and also detect if the +5V power has the faults of under voltage or over voltage.