Harmonic generator

With the development of a frequency´s synthesis technology and high speed large-scale integrated circuit, especially the high-speed development of operational amplifier, as a kind of important instrument, the signal generator has a wide range of applications in communication, detection, navigation, and the power supply, etc. It especially has deep applications in the switch power supply. Professor Ruan puts forward a solution-without the electrolytic capacitor harmonic injection method. The harmonic generator has a pivotal role in the aspect of switching power supply, and especially has a particularly evident effect in an odd harmonic. In this paper, we regard the city electricity sampling point between resistances as a benchmark, and the three harmonic is realized with hardware and software, respectively. In the hardware, we use the multiplier and phase-locked loop two methods produce the three times harmonics, and use saber software to simulate the multiplier to ensure the accuracy of the hardware. In the software, we use TMS320F2812 for sine wave generation to realize three harmonic.