Industry applications
1.1 Power Carrier PLC Module Application
For the main product design, Leiditech strongly recommend referring to the circuit diagram below for the safety protection design on the L and N lines and the PLC signal coupling design. This will help to reduce the risk of PLC module damage caused by surges and other issues.
Explanation:
The bidirectional TVS protection diodes (D1/D2) for both primary and secondary stages are mandatory components.
The PLC signal connection point on the L and N lines should be placed after the varistor (RV1).
After the PLC signal, two common-mode inductors (L1/L2) need to be connected in series to isolate the PLC signal from the main power supply.
The T1 transformer is a 1:1 transformer.
C1 is a safety capacitor.
