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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhong, Shu Xu, Jianping Chen, Xuejian Zhou, Xiang |
| Abstract | A two-channel single-stage switching amplifier (SSA) based on high-frequency link inverter is proposed. The audio input signals are modulated by phase shift between primary-side switches and secondary-side switches, thus independent amplifications of two channels can be obtained. Benefiting from multiplexing of primary-side power switches for two channels, only a half bridge inverter is utilised at primary side. Clamp circuits at the secondary side of transformer eliminate spike voltages across the secondary-side switches during the current commutation of the cycloconverters. Zero voltage switching of primary-side switches and clamp switches are achieved by utilising magnetising inductor current. A 320 V/250W prototype is presented to verify the analysis results of the proposed two-channel SSA. |
| Starting Page | 1499 |
| Ending Page | 1501 |
| Page Count | 3 |
| ISSN | 00135194 |
| Volume Number | 52 |
| e-ISSN | 1350911X |
| Issue Number | Issue 17, Aug (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/52/17 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2016.2274 |
| Journal | Electronics Letters |
| Publisher Date | 2016-08-02 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Amplifiers Audio Equipment And System Audio Input Signal Modulation Audio-frequency Amplifiers Bridge Circuit Clamp Circuit Commutation Current Commutation Cycloconverters Cycloconvertors Half Bridge Inverter High Efficiency Two-channel Single-stage Switching Amplifier High-frequency Link Inverter Independent Channel Amplifications Inductor Inductors And Transformer Invertors Magnetising Inductor Current Phase Shift Power 250 W Power Electronics Power Supply Power Switch Multiplexing Primary-side Switch Secondary-side Switch Spike Voltage Elimination Supervisory Circuit Transformer Two-channel SSA Voltage 320 V Zero Voltage Switching |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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