The Design of Simulation and the Creation of a Combination Wave and Ring Wave Generator are in accordance with the International Standard IEC 61000-4-5 and IEC 61000-4-12

A combination wave and a ring wave are important waveforms for electromagnetic immunity testing in accordance with the international standard IEC 61000-4-5 and IEC 61000-4-12. However, these waveforms must be delivered by expensive surge generator imports. Therefore, in order to decrease Thailand trade deficits and to respond to Thailand industrial policy 4.0 of the government of Thailand, this paper presented the design of simulation and the creation of a combination wave and ring wave generator. This generator is also able to deliver accurate waveforms in accord with the topic of electromagnetic compatibility (EMC) according to the standard IEC 61000-4-5 and IEC 61000-4-12. The generator is also suitable for electrical and electronic equipment testing in low voltage system. Moreover, the equivalent circuit of this generator is a simple circuit created by cheap materials.