Development of Switched Mode Power Supply (SMPS) Unit for Low-Power Electronic Devices

• Author(s): Dibosa Pius Nnamdi; Iloh J. P.; Mbachu C. B.
• Paper ID: 1711533
• Page: 1543-1551
• Published Date: 29-10-2025
• Published In: Iconic Research And Engineering Journals
• Publisher: IRE Journals
• e-ISSN: 2456-8880
• Volume/Issue: Volume 9 Issue 4 October-2025

Abstract

Switched Mode Power Supply (SMPS) units are critical for powering modern electronic systems due to their superior efficiency and compact size. This paper presents the design, construction, and experimental evaluation of aflybackSMPS intended for low-power electronic devices. A flyback converter topology operating in discontinuous conduction mode (DCM) was utilized, targeting a wide AC input range of 85V to 265V and delivering a regulated 12V DC output voltage at 0.67A. The performance assessments revealed that the developed SMPS maintains stable output even at low input voltages (down to 40V), significantly outperforming a conventional linear power supply in regulation and efficiency. The SMPS achieved an average efficiency of 79.3%, making it a cost-effective and reliable alternative to imported models. The system is suitable for use in educational, research, and domestic applications.

Keywords

Switched Mode Power Supply, Flyback Converter, Low-Power Electronics, Power Regulation, Efficiency

Citations

IRE Journals:
Dibosa Pius Nnamdi, Iloh J. P., Mbachu C. B. "Development of Switched Mode Power Supply (SMPS) Unit for Low-Power Electronic Devices" Iconic Research And Engineering Journals Volume 9 Issue 4 2025 Page 1543-1551

IEEE:
Dibosa Pius Nnamdi, Iloh J. P., Mbachu C. B. "Development of Switched Mode Power Supply (SMPS) Unit for Low-Power Electronic Devices" Iconic Research And Engineering Journals, 9(4)