Solar inverter circuit boards convert direct current into alternating current. They consist of several electrical components.
- Resistors. Convert electrical energy into thermal energy. - Transistors. Control the output current with a small input signal. - Capacitors. Store electrical charge and release it when needed, helping to regulate power. - Inductors. Store energy in the form of a magnetic field, blocking unwanted signals or interference. - Transformers. Transfer electrical energy from one circuit to another, regulating voltage levels. - Diodes. Allow electric current to flow in one direction. - Sensors. Detect changes in the environment and generate electrical signals in response. - Solid-state switches. Convert direct current to alternating current.
The choice of material for solar inverter circuit boards is critical to their performance and durability:
- FR-4 is a flame-retardant plastic laminate. It has mechanical strength, wide temperature range and high glass transition temperature. - PTFE (polytetrafluoroethylene) - known for its electrical insulating properties, low dielectric constant and high thermal stability. It is resistant to moisture, chemicals and extreme temperatures. - Teflon - provides low signal loss. - Polyimide - heat resistant material.