Patent ID: 9729074
Date: 2017-08-08
CPC Classifications: G01R,G05B,G05F,H02H,H02M

Claim:
1. A multifunctional signal isolation converter arranged in a safe area and applied to an electronic apparatus, the multifunctional signal isolation converter comprising: a signal input terminal electrically connected to the electronic apparatus; a microprocessor electrically connected to the signal input terminal; and a power supply unit electrically connected to the microprocessor and the electronic apparatus, the power supply unit providing a driving power; and a signal isolation unit electrically connected to the microprocessor and the signal input terminal, wherein the microprocessor is configured to determine whether internal functions of the multifunctional signal isolation converter are normal or not to obtain a first judgment value; wherein the electronic apparatus sends an input signal to the microprocessor through the signal input terminal; the microprocessor is configured to determine whether functions of the electronic apparatus are normal or not to obtain a second judgment value according to the input signal; wherein the microprocessor is configured to control whether the power supply unit supplies the driving power to the electronic apparatus or not according to the first judgment value and the second judgment value; wherein the signal isolation unit receives the input signal and then the signal isolation unit informs the microprocessor of the input signal in isolation to protect the microprocessor.