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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| Format: | Final Year Project (FYP) |
| Language: | English |
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2014
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| Online Access: | http://hdl.handle.net/10356/60874 |
| _version_ | 1826113695463243776 |
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| author | Maretta Shilviani Kumara |
| author2 | Gwee Bah Hwee |
| author_facet | Gwee Bah Hwee Maretta Shilviani Kumara |
| author_sort | Maretta Shilviani Kumara |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T03:27:26Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/60874 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:27:26Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-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 |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Maretta Shilviani Kumara Resonant switched-mode DC-DC converters |
| title | 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_short | Resonant switched-mode DC-DC converters |
| title_sort | resonant switched mode dc dc converters |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits |
| url | http://hdl.handle.net/10356/60874 |
| work_keys_str_mv | AT marettashilvianikumara resonantswitchedmodedcdcconverters |