Solar power inverter in the main circuit needs to have a control circuit to achieve, there are two kinds of square wave and positive weak wave control:
①square wave output of the inverter: (simple, low cost, but low efficiency, harmonic components).
②sine wave output is solar power generation in the inverter power generation in the solar power inverter development trend, so the sine wave output inverter technology has matured.
1. square wave output of solar power inverter in the current use of pulse-width modulation integrated circuits.
2. Sine wave output of solar power inverter control IC, sine wave output of solar power inverter, the control circuit can be microprocessor-controlled to achieve the sine wave output circuit to complete the sine wave signal Of the solar power generation in the inverter, and to detect the AC output voltage to achieve regulation.