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| Content Provider | IET Digital Library |
|---|---|
| Author | Pal, Somnath Singh, Bhim Shrivastava, Ashish |
| Abstract | A power factor corrected single switch tapped-inductor buck–boost converter is proposed to achieve improved efficiency in extreme step-up and step-down conditions. This new and modified topology is having diode-tapped and switch-tapped configurations for step-down and step-up modes of operation, respectively. The proposed modified buck–boost converter is designed to operate in critical conduction mode (CrCM) to achieve quasi-resonant operation. Both the buck and boost functionalities of the buck–boost converter are analysed using state space analysis with closed loop stability under varying input and output conditions. Several advantages and necessity of tapped versions are discussed and implemented under wide input and extreme output (WIEO) conditions. Two different prototypes are developed at extreme buck and boost levels to establish the benefits of the proposed arrangements. The efficiency improvement of the proposed converter is compared with the conventional buck–boost converter. The achieved efficiency of diode-tapped buck mode and switch-tapped boost mode is found 95% and total harmonic distortion is observed only 4% at 230 V AC mains for a prototype of 150 W, which is much improved results as compared to the previous research work on the tapped-inductor converter. |
| Starting Page | 535 |
| Ending Page | 544 |
| Page Count | 10 |
| ISSN | 17554535 |
| Volume Number | 13 |
| e-ISSN | 17554543 |
| Issue Number | Issue 3, Feb (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/13/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2018.5785 |
| Journal | IET Power Electronics |
| Publisher Date | 2019-11-06 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | AC-DC Power Converter Achieved Efficiency Boost Functionalities Boost Levels Boost Mode Closed Loop System Conventional Buck–boost Converter CrCM Critical Conduction Mode Diode-tapped Buck Mode Efficiency Improvement Extreme Buck Extreme Output Condition Extreme Step-up Harmonic Distortion High Efficiency Wide Input Extreme Output Tapped Inductor Buck–boost Converter High Power LED Lighting Inductor Inductors And Transformer LED Lamps Light Source Power 150.0 W Power Electronics Power Factor Correction Power Supply Quasiresonant Operation Single Switch Tapped-inductor Buck–boost Converter Supervisory Circuit Switch-tapped Configurations Switching Converter Tapped Versions Voltage 230.0 V |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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