Inverter is a power adjustment device composed of semiconductor devices, mainly used to convert DC power into AC power is generally composed of a booster circuit and inverter bridge circuit to boost the DC voltage of the solar cell to the DC voltage required by the inverter output control;

Inverter bridge type circuit, the dc voltage after booster is equivalent to convert commonly used frequency ac voltage of the inverter is mainly composed of the transistor switch components, such as through regularly repeat on-off to switch components (ON - OFF), make the input dc to ac output Of course, this simply produced by and off circuit of inverter output waveform is not practical

Generally need to adopt high-frequency pulse width modulation (SPWM), make the near at the ends of the sine wave voltage width narrow, central sine wave voltage width wider, and always let the switch element in half cycle according to certain frequency moves in one direction, thus formed a pulse wave train (quasi sine wave) and then let the form sine wave pulse through a simple filter

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hybrid solar inverter