WRN-430 WRN-431 WRN-432 WRN-433 WRN-440 K type thermocouples
WRN-430 WRN-431 WRN-432 WRN-433 WRN-440 K type thermocouples, as we all know, if the impedance is discontinuous in the circuit, it will cause signal reflection, causing signal distortion such as overshoot, undershoot, ringing, etc., which will seriously affect the signal quality. Therefore, impedance matching is an important consideration when designing a circuit.
Impedance control of our PCB traces is no longer a sophisticated technique, and is basically a basic capability necessary for every hardware engineer. However, in specific circuits, it is not enough to consider only the impedance of the traces. The actual circuit is composed of a sender, a connection, and a receiver. What we want to do is to have the same impedance throughout the link. However, it is difficult to achieve this in actual circuits. Generally, the output impedance of the transmitting end is relatively small, while the input impedance of the receiving end is very high. Then, to deal with this contradiction, termination becomes a very natural method. Therefore, the nature of termination is still impedance matching, which is the most important thing in PCB design.