| Abstract |
This thesis proposes a novel single phase inverter based on the active clamp forward converter technique. First, an active clamp forward converter is used to boost the DC input voltage and to output a sinusoidal full-wave rectifier type voltage. Then the full bridge switches circuit of the inverter changes the polar of the output voltage by controlling the states of the switches to output an AC sinusoidal voltage. The active clamp forward converter has the advantages of simple structure, small size, and low switching los. Moreover, because the switches of the full bridge circuit are used to change the polar of the output voltage, the switching frequency and switching loss are low, so that the output efficiency of the inverter is high. Next, the exactitude of the control circuits was validated by using the simulation. Moreover, an active clamp forward inverter is actually implemented. A Texas Instruments digital signal processor, TMS320F2808, is used to execute the control scheme and control the driving signal. As a result, a fully digital control system is realized to reduce the hardware circuits. Finally, the experimental results can validate the exactitude and the practicability of proposed circuit. |
