The Journal of King Mongkut's University of Technology North Bangkok
วารสารวิชาการพระจอมเกล้าพระนครเหนือ

Sooppakit Sirasugol
School of Electrical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima,
Thailand

Tosaporn Narongrit
School of Electrical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima,
Thailand

Kongpol Areerak
School of Electrical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima,
Thailand