Design of High-Voltage Switch-Mode Power Amplifier Based on Digital-Controlled Hybrid Multilevel Converter
Compared with conventional Class-A, Class-B, and Class-AB amplifiers, Class-D amplifier, also known as switching amplifier, employs pulse width modulation (PWM) technology and solid-state switching devices, capable of achieving much higher efficiency. However, PWM-based switching amplifier is usuall...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Active and Passive Electronic Components |
| Online Access: | http://dx.doi.org/10.1155/2016/3982594 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832564659567198208 |
|---|---|
| author | Yanbin Hou Wanrong Sun Aifeng Ren Shuming Liu |
| author_facet | Yanbin Hou Wanrong Sun Aifeng Ren Shuming Liu |
| author_sort | Yanbin Hou |
| collection | DOAJ |
| description | Compared with conventional Class-A, Class-B, and Class-AB amplifiers, Class-D amplifier, also known as switching amplifier, employs pulse width modulation (PWM) technology and solid-state switching devices, capable of achieving much higher efficiency. However, PWM-based switching amplifier is usually designed for low-voltage application, offering a maximum output voltage of several hundred Volts. Therefore, a step-up transformer is indispensably adopted in PWM-based Class-D amplifier to produce high-voltage output. In this paper, a switching amplifier without step-up transformer is developed based on digital pulse step modulation (PSM) and hybrid multilevel converter. Under the control of input signal, cascaded power converters with separate DC sources operate in PSM switch mode to directly generate high-voltage and high-power output. The relevant topological structure, operating principle, and design scheme are introduced. Finally, a prototype system is built, which can provide power up to 1400 Watts and peak voltage up to ±1700 Volts. And the performance, including efficiency, linearity, and distortion, is evaluated by experimental tests. |
| format | Article |
| id | doaj-art-0ddeafa367e14fee9619c807929fd117 |
| institution | Kabale University |
| issn | 0882-7516 1563-5031 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Active and Passive Electronic Components |
| spelling | doaj-art-0ddeafa367e14fee9619c807929fd1172025-02-03T01:10:24ZengWileyActive and Passive Electronic Components0882-75161563-50312016-01-01201610.1155/2016/39825943982594Design of High-Voltage Switch-Mode Power Amplifier Based on Digital-Controlled Hybrid Multilevel ConverterYanbin Hou0Wanrong Sun1Aifeng Ren2Shuming Liu3School of Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Electronic Engineering, Xidian University, Xi’an 710071, ChinaCompared with conventional Class-A, Class-B, and Class-AB amplifiers, Class-D amplifier, also known as switching amplifier, employs pulse width modulation (PWM) technology and solid-state switching devices, capable of achieving much higher efficiency. However, PWM-based switching amplifier is usually designed for low-voltage application, offering a maximum output voltage of several hundred Volts. Therefore, a step-up transformer is indispensably adopted in PWM-based Class-D amplifier to produce high-voltage output. In this paper, a switching amplifier without step-up transformer is developed based on digital pulse step modulation (PSM) and hybrid multilevel converter. Under the control of input signal, cascaded power converters with separate DC sources operate in PSM switch mode to directly generate high-voltage and high-power output. The relevant topological structure, operating principle, and design scheme are introduced. Finally, a prototype system is built, which can provide power up to 1400 Watts and peak voltage up to ±1700 Volts. And the performance, including efficiency, linearity, and distortion, is evaluated by experimental tests.http://dx.doi.org/10.1155/2016/3982594 |
| spellingShingle | Yanbin Hou Wanrong Sun Aifeng Ren Shuming Liu Design of High-Voltage Switch-Mode Power Amplifier Based on Digital-Controlled Hybrid Multilevel Converter Active and Passive Electronic Components |
| title | Design of High-Voltage Switch-Mode Power Amplifier Based on Digital-Controlled Hybrid Multilevel Converter |
| title_full | Design of High-Voltage Switch-Mode Power Amplifier Based on Digital-Controlled Hybrid Multilevel Converter |
| title_fullStr | Design of High-Voltage Switch-Mode Power Amplifier Based on Digital-Controlled Hybrid Multilevel Converter |
| title_full_unstemmed | Design of High-Voltage Switch-Mode Power Amplifier Based on Digital-Controlled Hybrid Multilevel Converter |
| title_short | Design of High-Voltage Switch-Mode Power Amplifier Based on Digital-Controlled Hybrid Multilevel Converter |
| title_sort | design of high voltage switch mode power amplifier based on digital controlled hybrid multilevel converter |
| url | http://dx.doi.org/10.1155/2016/3982594 |
| work_keys_str_mv | AT yanbinhou designofhighvoltageswitchmodepoweramplifierbasedondigitalcontrolledhybridmultilevelconverter AT wanrongsun designofhighvoltageswitchmodepoweramplifierbasedondigitalcontrolledhybridmultilevelconverter AT aifengren designofhighvoltageswitchmodepoweramplifierbasedondigitalcontrolledhybridmultilevelconverter AT shumingliu designofhighvoltageswitchmodepoweramplifierbasedondigitalcontrolledhybridmultilevelconverter |