The signal isolator with protection of the lower set control loop, weakening the impact of environmental noise, suppressing grounding or equipment interference, voltage limiting, current, protecting the input and output of the control system and communication interface becomes an indispensable part of the control system. Signal isolator

It is located between two system channels, so the input and output functions should be determined first, and the isolator input and output modes (current type, voltage type, loop power supply type, etc.) should be adapted to the front and back end channels connected to 1:3 mode. In addition, many important parameters such as precision, noise, power consumption, insulation strength, and bus communication function involve product performance, such as noise and accuracy, power consumption, heat and reliability, which need to be carefully selected by users. In short, applicability, reliability, and product cost performance are the main principles for selecting signal isolators. Signal isolator