Automotive industry requires integrated circuits with both low cost, to maintain product competitiveness, and high efficiency, moving towards solutions as green as possible. Each electronic device within the car needs for a regulator to provide a steady supply to ensure correct and safe operation. Among all regulator, DC/DC Converters are the most valid solution to achieve a high efficiency-price ratio. The DC/DC Converter needs for a control loop to monitor the load operation. The basic control loop topologies are well known in the state-of-the-art. The paper presents a DC/DC Buck Converter for automotive applications designed in low cost technology with an upgraded version of the Peak Current Mode Control which uses a constant off-time. For chip area reduction, an n-channel power-DMOS is chosen as power transistor. The design of each block composing the circuit is presented. To guarantee DC-DC Buck converters high-efficiency and low cost (in terms of external components) increasing switching frequency is mandatory. A 1.5 MHz switching frequency has been chosen to reduce external components size. The device is optimized by design to be able to achieve 94.4% efficiency using a 3V 3A load. The post-layout simulations of the system are shown, confirming the expected circuit behavior also including the presence of wiring parasites. A PCB is also designed to test the packaged die to ultimately demonstrate the chip’s robustness and suitability in a real automotive application.
| Published in | Journal of Electrical and Electronic Engineering (Volume 9, Issue 4) |
| DOI | 10.11648/j.jeee.20210904.14 |
| Page(s) | 123-128 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
DC/DC Converter, Current Control, Peak Current Mode Control, Constant-Toff
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APA Style
Osvaldo Gasparri, Albino Pidutti, Paolo Del Croce, Andrea Baschirotto. (2021). A Fast Switching Current Controlled DC/DC Converter for Automotive Applications. Journal of Electrical and Electronic Engineering, 9(4), 123-128. https://doi.org/10.11648/j.jeee.20210904.14
ACS Style
Osvaldo Gasparri; Albino Pidutti; Paolo Del Croce; Andrea Baschirotto. A Fast Switching Current Controlled DC/DC Converter for Automotive Applications. J. Electr. Electron. Eng. 2021, 9(4), 123-128. doi: 10.11648/j.jeee.20210904.14
AMA Style
Osvaldo Gasparri, Albino Pidutti, Paolo Del Croce, Andrea Baschirotto. A Fast Switching Current Controlled DC/DC Converter for Automotive Applications. J Electr Electron Eng. 2021;9(4):123-128. doi: 10.11648/j.jeee.20210904.14
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Download@article{10.11648/j.jeee.20210904.14,
author = {Osvaldo Gasparri and Albino Pidutti and Paolo Del Croce and Andrea Baschirotto},
title = {A Fast Switching Current Controlled DC/DC Converter for Automotive Applications},
journal = {Journal of Electrical and Electronic Engineering},
volume = {9},
number = {4},
pages = {123-128},
doi = {10.11648/j.jeee.20210904.14},
url = {https://doi.org/10.11648/j.jeee.20210904.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20210904.14},
abstract = {Automotive industry requires integrated circuits with both low cost, to maintain product competitiveness, and high efficiency, moving towards solutions as green as possible. Each electronic device within the car needs for a regulator to provide a steady supply to ensure correct and safe operation. Among all regulator, DC/DC Converters are the most valid solution to achieve a high efficiency-price ratio. The DC/DC Converter needs for a control loop to monitor the load operation. The basic control loop topologies are well known in the state-of-the-art. The paper presents a DC/DC Buck Converter for automotive applications designed in low cost technology with an upgraded version of the Peak Current Mode Control which uses a constant off-time. For chip area reduction, an n-channel power-DMOS is chosen as power transistor. The design of each block composing the circuit is presented. To guarantee DC-DC Buck converters high-efficiency and low cost (in terms of external components) increasing switching frequency is mandatory. A 1.5 MHz switching frequency has been chosen to reduce external components size. The device is optimized by design to be able to achieve 94.4% efficiency using a 3V 3A load. The post-layout simulations of the system are shown, confirming the expected circuit behavior also including the presence of wiring parasites. A PCB is also designed to test the packaged die to ultimately demonstrate the chip’s robustness and suitability in a real automotive application.},
year = {2021}
}
TY - JOUR T1 - A Fast Switching Current Controlled DC/DC Converter for Automotive Applications AU - Osvaldo Gasparri AU - Albino Pidutti AU - Paolo Del Croce AU - Andrea Baschirotto Y1 - 2021/08/07 PY - 2021 N1 - https://doi.org/10.11648/j.jeee.20210904.14 DO - 10.11648/j.jeee.20210904.14 T2 - Journal of Electrical and Electronic Engineering JF - Journal of Electrical and Electronic Engineering JO - Journal of Electrical and Electronic Engineering SP - 123 EP - 128 PB - Science Publishing Group SN - 2329-1605 UR - https://doi.org/10.11648/j.jeee.20210904.14 AB - Automotive industry requires integrated circuits with both low cost, to maintain product competitiveness, and high efficiency, moving towards solutions as green as possible. Each electronic device within the car needs for a regulator to provide a steady supply to ensure correct and safe operation. Among all regulator, DC/DC Converters are the most valid solution to achieve a high efficiency-price ratio. The DC/DC Converter needs for a control loop to monitor the load operation. The basic control loop topologies are well known in the state-of-the-art. The paper presents a DC/DC Buck Converter for automotive applications designed in low cost technology with an upgraded version of the Peak Current Mode Control which uses a constant off-time. For chip area reduction, an n-channel power-DMOS is chosen as power transistor. The design of each block composing the circuit is presented. To guarantee DC-DC Buck converters high-efficiency and low cost (in terms of external components) increasing switching frequency is mandatory. A 1.5 MHz switching frequency has been chosen to reduce external components size. The device is optimized by design to be able to achieve 94.4% efficiency using a 3V 3A load. The post-layout simulations of the system are shown, confirming the expected circuit behavior also including the presence of wiring parasites. A PCB is also designed to test the packaged die to ultimately demonstrate the chip’s robustness and suitability in a real automotive application. VL - 9 IS - 4 ER -
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