SA4828 in the A320 Simulator Airborne Equipment Test Signal Source

This paper introduces a superior performance of the PWM wave generator, the main device that is the SA4828, Circuit structure is a three-phase variable frequency power supply this circuit can be used as airborne A320 simulator simulator test signal source, three single-phase inverter circuit composed of a three-phase inverter, which can solve the problem of asymmetric three-phase load; For the output waveform filtering problem, this paper presents a two LC filter circuit. The output sine wave distortion is reduced to less than 2.0 %; The simulation can be seen the SA4828 constitutes source, it can make a simple function variable voltage variable frequency. It can be flexibly adjusted to achieve independence between the three phases, it also has a good load capacity against non symmetric.