Resonant switched-mode DC-DC converters
Soft-switching (resonant) switched-mode DC-DC converters can have potential advantages, such as lower overshoot, switching and conduction losses, and electromagnetic interference, compared to their standard hard-switching counterparts. This report reviews and investigates two types of resonant-bas...
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sg-ntu-dr.10356-608742023-07-07T17:27:32Z Resonant switched-mode DC-DC converters Maretta Shilviani Kumara Gwee Bah Hwee School of Electrical and Electronic Engineering Centre for Integrated Circuits and Systems DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Soft-switching (resonant) switched-mode DC-DC converters can have potential advantages, such as lower overshoot, switching and conduction losses, and electromagnetic interference, compared to their standard hard-switching counterparts. This report reviews and investigates two types of resonant-based switched-mode DC-DC converters: Zero Current Switching (ZCS) and Zero Voltage Switching (ZVS). The operation principle of ZCS is zero current during the turn-off transition. The operation principle of ZVS is zero voltage during the turn-on transition. Generally, ZVS is more advantageous than ZCS due to the ability to eliminate overvoltage, switching loss, and electromagnetic interference. In this report, we investigate ZVS for low-power applications. ZVS Square-Wave Resonant Switch is selected as it features low switching loss. The proposed model used is a modified version of bulk converter with synchronous rectifier. Synchronous rectifier behaves as such that the currents are reversed when it is connected to MOSFETs. MOSFET’s R_on must be very small, so that the conduction loss is minimized. The function of buck converter is to obtain a regulated output voltage, V_out which could be a different magnitude from〖 V〗_in. In this report, it shows that by inserting a low input voltage, the simulation results obtained is equivalent to the calculated output results. On the basis of this observation, it is recommended that ZVS Square-Wave Resonant Switch can be used if designer objective to achieve low power. The expressions used are verified by computer simulations. Bachelor of Engineering 2014-06-02T06:37:08Z 2014-06-02T06:37:08Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60874 en Nanyang Technological University 53 p. application/pdf |
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DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Maretta Shilviani Kumara Resonant switched-mode DC-DC converters |
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Soft-switching (resonant) switched-mode DC-DC converters can have potential advantages, such as lower overshoot, switching and conduction losses, and electromagnetic interference, compared to their standard hard-switching counterparts. This report reviews and investigates two types of resonant-based switched-mode DC-DC converters: Zero Current Switching (ZCS) and Zero Voltage Switching (ZVS). The operation principle of ZCS is zero current during the turn-off transition. The operation principle of ZVS is zero voltage during the turn-on transition. Generally, ZVS is more advantageous than ZCS due to the ability to eliminate overvoltage, switching loss, and electromagnetic interference. In this report, we investigate ZVS for low-power applications.
ZVS Square-Wave Resonant Switch is selected as it features low switching loss. The proposed model used is a modified version of bulk converter with synchronous rectifier. Synchronous rectifier behaves as such that the currents are reversed when it is connected to MOSFETs. MOSFET’s R_on must be very small, so that the conduction loss is minimized.
The function of buck converter is to obtain a regulated output voltage, V_out which could be a different magnitude from〖 V〗_in. In this report, it shows that by inserting a low input voltage, the simulation results obtained is equivalent to the calculated output results. On the basis of this observation, it is recommended that ZVS Square-Wave Resonant Switch can be used if designer objective to achieve low power. The expressions used are verified by computer simulations. |
author2 |
Gwee Bah Hwee |
author_facet |
Gwee Bah Hwee Maretta Shilviani Kumara |
format |
Final Year Project |
author |
Maretta Shilviani Kumara |
author_sort |
Maretta Shilviani Kumara |
title |
Resonant switched-mode DC-DC converters |
title_short |
Resonant switched-mode DC-DC converters |
title_full |
Resonant switched-mode DC-DC converters |
title_fullStr |
Resonant switched-mode DC-DC converters |
title_full_unstemmed |
Resonant switched-mode DC-DC converters |
title_sort |
resonant switched-mode dc-dc converters |
publishDate |
2014 |
url |
http://hdl.handle.net/10356/60874 |
_version_ |
1772825815826825216 |