DC Regulation and Loop Gain Analysis of a DC-DC Switch Mode Power Supply: A Case Study on a Synchronous PWM Controlled Buck Converter
Abstract
This study investigates the DC regulation of a DC-DC buck converter operating with pulse width modulation (PWM), taking into account the internal resistance of the coil and the on-resistance of the switching device. The effect of these parameters on the input/output disturbances is analyzed in continuous-conduction mode under constant frequency voltage mode control. The study also explores the effect on loop gain using the IRU3037 8-pin IC synchronous PWM controlled buck converter. The transfer function of the IRU3037 IC is derived from datasheet values using state-space averaging and AC small signal methods. A Type II compensator is then designed based on the derived transfer function. In addition, the step response characteristics of the open-loop and closed-loop circuits are investigated by time domain analysis.
Keywords
Switch mode power supply IRU3037 IC Synchronous PWM control Loop gain analysis Type II compensator
References
- Alavi P, Babaei E, Mohseni P, Marzang V. 2020. Study and analysis of a DC–DC soft‐switched buck converter. IET Power Electron, 13(7): 1456-1465.
- Beghou L, Popat M, MacDonald S. 2021. PWM control of 3-phase PFC vienna rectifier derived from an average current-based control of single-phase PFC boost converter. IEEE IEEE Energy Convers. Congr. Expo. (ECCE), October 10-14, Vancouver, Canada, pp: 3452-3459.
DC Regulation and Loop Gain Analysis of a DC-DC Switch Mode Power Supply: A Case Study on a Synchronous PWM Controlled Buck Converter
Abstract
Bu çalışma, bobinin iç direncini ve anahtarlama cihazının açık direncini dikkate alarak darbe genişlik modülasyonu (pulse width modulation-PWM) ile çalışan bir DC-DC buck dönüştürücünün DC regülasyonunu araştırmaktadır. Bu parametrelerin giriş/çıkış bozuklukları üzerindeki etkisi, sabit frekanslı gerilim modu kontrolü altında sürekli iletim modunda analiz edilmiştir. Çalışma ayrıca IRU3037 8-pinli IC senkron PWM kontrollü buck dönüştürücü kullanarak döngü kazancı üzerindeki etkiyi araştırmaktadır. IRU3037 entegresinin transfer fonksiyonu, durum-uzay ortalaması ve AC küçük sinyal yöntemleri kullanılarak veri sayfası değerlerinden türetilmiştir. Daha sonra türetilen transfer fonksiyonuna dayalı olarak bir Tip II kompansatör tasarlanmıştır. Ayrıca, açık döngü ve kapalı döngü devrelerinin adım tepkisi karakteristikleri zaman alanı analizi ile incelenmiştir.
Keywords
Anahtarlamalı güç kaynağı IRU3037 entegre devre Senkron PWM kontrolü Döngü kazanç analizi Tip II kompansatör
References
- Alavi P, Babaei E, Mohseni P, Marzang V. 2020. Study and analysis of a DC–DC soft‐switched buck converter. IET Power Electron, 13(7): 1456-1465.
- Beghou L, Popat M, MacDonald S. 2021. PWM control of 3-phase PFC vienna rectifier derived from an average current-based control of single-phase PFC boost converter. IEEE IEEE Energy Convers. Congr. Expo. (ECCE), October 10-14, Vancouver, Canada, pp: 3452-3459.
Details
| Primary Language | English |
|---|---|
| Subjects | Electrical Circuits and Systems |
| Journal Section | Research Articles |
| Authors | |
| Early Pub Date | September 10, 2024 |
| Publication Date | September 15, 2024 |
| Submission Date | August 14, 2024 |
| Acceptance Date | September 8, 2024 |
| Published in Issue | Year 2024 Volume: 7 Issue: 5 |
