SMARTICS Journal
Vol 11 No 2 (2025): SMARTICS Journal (Oktober 2025)

KONTROL RIPPLE SUPPRESSION PADA LOW-INDUCTANCE BUCK CONVERTER UNTUK CONTINUOUS CONDUCTION OPERATION

Sholihah, Fifi Hesty (Unknown)



Article Info

Publish Date
29 Oct 2025

Abstract

This work proposes a control strategy that keeps a buck converter in Continuous Conduction Mode (CCM) even with a low inductance. The architecture is a cascaded scheme with an outer voltage loop and an inner current loop featuring a valley clamp to prevent inductor-current collapse, complemented by feedforward and anti-windup under duty saturation. The approach is validated in simulation across inductances L=L=L= 40 mH, 10 mH, 5 mH, and 1 mH, and under both resistive and inductive (R–L) loads. Results show consistent suppression of current and voltage ripple. At L=1 mH, inductor-current ripple decreases from 12.44 Ap−p to 1.918 Ap−p ​ (≈6.5×), while output-voltage ripple drops from 8.536 V to 0.63 V (≈13.6×), with the output regulated at 60 V. At L=10 mH, current ripple is reduced from 1.748 A to 0.337 A (≈5.2×) and voltage ripple from 4.855 V to 0.11 V (≈44×). The controller also damps R–L load effects so the inductor current never hits zero. These findings indicate that low-inductance operation is feasible while preserving power quality, stability, and enabling higher power density

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Journal Info

Abbrev

jst

Publisher

Subject

Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering

Description

SMARTICS Journal's aims is to disseminate research on applied computer science or information technology by publishing the original articles. The scope of SMARTICS are electrical, electronics, controls, information system, and applied ...