A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequency
Abstract The need for a high‐frequency and high‐efficiency gallium nitride (GaN)‐based buck converter that can be controlled directly by a low swing pulse width‐modulated (PWM) signal, without the need for additional buffers or preamplifiers, poses a significant challenge in the field of power conve...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-04-01
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| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/ell2.12768 |
| _version_ | 1797848079688269824 |
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| author | Longkun Lai Xin Jiang Chenhao Li Weijun Luo |
| author_facet | Longkun Lai Xin Jiang Chenhao Li Weijun Luo |
| author_sort | Longkun Lai |
| collection | DOAJ |
| description | Abstract The need for a high‐frequency and high‐efficiency gallium nitride (GaN)‐based buck converter that can be controlled directly by a low swing pulse width‐modulated (PWM) signal, without the need for additional buffers or preamplifiers, poses a significant challenge in the field of power conversion and dynamically power supply applications. To solve this problem, this letter presents a monolithic two‐phase synchronous buck converter, fabricated using a 0.25‐um GaN‐on‐Si process, integrated both the drivers and power stage transistors, without requiring additional buffers or preamplifiers. So, the proposed converter can be directly controlled by a PWM signal with a swing of only 1 V (−0.5 to 0.5 V). At a 100‐MHz switching frequency, the converter achieves a maximum output power of 12 W with a power stage efficiency of 82%. The converter includes two identical half‐bridge Monolithic Microwave Integrated Circuit (MMICs), and with the frequency multiplication property of multi‐phase topology, the equivalent switching frequency can reach 200 MHz in the open‐loop operating mode. The experimental results show that the converter can track a 40‐MHz bandwidth envelope signal (256 QAM, 6 dB PAPR) with 80.1% efficiency. |
| first_indexed | 2024-04-09T18:22:45Z |
| format | Article |
| id | doaj.art-fcf539728dff4136a1ac338d99067189 |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-04-09T18:22:45Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-fcf539728dff4136a1ac338d990671892023-04-12T06:04:53ZengWileyElectronics Letters0013-51941350-911X2023-04-01597n/an/a10.1049/ell2.12768A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequencyLongkun Lai0Xin Jiang1Chenhao Li2Weijun Luo3Institute of Microelectronics of the Chinese Academy of Sciences Beijing ChinaInstitute of Microelectronics of the Chinese Academy of Sciences Beijing ChinaInstitute of Microelectronics of the Chinese Academy of Sciences Beijing ChinaInstitute of Microelectronics of the Chinese Academy of Sciences Beijing ChinaAbstract The need for a high‐frequency and high‐efficiency gallium nitride (GaN)‐based buck converter that can be controlled directly by a low swing pulse width‐modulated (PWM) signal, without the need for additional buffers or preamplifiers, poses a significant challenge in the field of power conversion and dynamically power supply applications. To solve this problem, this letter presents a monolithic two‐phase synchronous buck converter, fabricated using a 0.25‐um GaN‐on‐Si process, integrated both the drivers and power stage transistors, without requiring additional buffers or preamplifiers. So, the proposed converter can be directly controlled by a PWM signal with a swing of only 1 V (−0.5 to 0.5 V). At a 100‐MHz switching frequency, the converter achieves a maximum output power of 12 W with a power stage efficiency of 82%. The converter includes two identical half‐bridge Monolithic Microwave Integrated Circuit (MMICs), and with the frequency multiplication property of multi‐phase topology, the equivalent switching frequency can reach 200 MHz in the open‐loop operating mode. The experimental results show that the converter can track a 40‐MHz bandwidth envelope signal (256 QAM, 6 dB PAPR) with 80.1% efficiency.https://doi.org/10.1049/ell2.127685G mobile communicationHEMT‐integrated circuitsswitching convertorsVHF circuits |
| spellingShingle | Longkun Lai Xin Jiang Chenhao Li Weijun Luo A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequency Electronics Letters 5G mobile communication HEMT‐integrated circuits switching convertors VHF circuits |
| title | A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequency |
| title_full | A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequency |
| title_fullStr | A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequency |
| title_full_unstemmed | A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequency |
| title_short | A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequency |
| title_sort | monolithic gallium nitride based two phase synchronous buck converter with high operating frequency |
| topic | 5G mobile communication HEMT‐integrated circuits switching convertors VHF circuits |
| url | https://doi.org/10.1049/ell2.12768 |
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