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| Content Provider | IET Digital Library |
|---|---|
| Author | Tian, Gao Qi, Wang Yan, Yang Jiang, Yan Zhong |
| Abstract | A single-ended primary inductor converter (SEPIC)-based light-emitting diode (LED) power supply, which can achieve power factor correction (PFC) and constant-current drive for LED in the critical conduction mode (CRM), is presented. The circuit principle is described in detail. Meanwhile the formulas for metal–oxide semiconductor field-effect transistor switch-on time, switching frequency and the main influences of power factor are given. Experimental results show that the power can drive the LED with high efficiency by virtue of its high power factor, low power loss and stable output. Furthermore, it can be applied to low-power lighting occasions with simple structure and high reliability. |
| Starting Page | 1866 |
| Ending Page | 1868 |
| Page Count | 3 |
| ISSN | 00135194 |
| Volume Number | 50 |
| e-ISSN | 1350911X |
| Issue Number | Issue 24, Nov (2014) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/50/24 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2014.1925 |
| Journal | Electronics Letters |
| Publisher Date | 2014-11-12 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Constant-current Drive Critical Conduction Mode CRM Field Effect Transistor Switches High Power Factor LED Power Supply Inductor Inductors And Transformer Insulated Gate Field Effect Transistors Light Emitting Diode Light-emitting Diode Power Supply Lighting Low-power Lighting Occasions Metal-oxide Semiconductor Field-effect Transistor Switch-on Time PFC Power Converter Power Electronics Power Factor Correction Power MOSFET Power Semiconductor Device Power Supply Relay And Switches SEPIC Converter Single-ended Primary Inductor Converter Supervisory Circuit |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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