| 摘要 |
Provided is an electronic device which diagnoses whether an analog input circuit is broken or not. The electronic device includes: a switch which receives the internal voltage of a circuit board and is connected to an external sensor of the circuit board; an analogy input circuit which receives a current from the external sensor and generates a digital signal; a processor which receives the digital signal, diagnoses whether the analog input circuit is broken or not, and generates a voltage control signal; and a voltage control circuit which receives the voltage control signal and controls the voltage of the current provided to the analog input circuit. |
