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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yuequan Hu Huber, L. Jovanović, M.M. |
| Copyright Year | 1986 |
| Abstract | This paper presents a single-stage flyback power-factor-correction (PFC) circuit with a variable boost inductance for high-brightness LED applications for the universal input voltage (90-270 Vrms). The proposed circuit overcomes the limitations of the conventional single-stage PFC flyback with a constant boost inductance that cannot be designed to achieve a practical maximum bulk-capacitor voltage level (i.e., less than 450 V) at high line while meeting required line-current harmonic specifications at low line. According to the proposed method for achieving variable boost inductance, the boost inductance has a constant high value at high line, while at low line it is reduced proportionally to the load current, so that the IEC 61000-3-2 class C and corresponding Japanese JIS C 61000-3-2 class C line-current harmonic limits are satisfied. The proposed single-stage PFC flyback LED driver with the variable boost inductor is experimentally verified on a 24-V/91-W prototype circuit. |
| Sponsorship | IEEE Power Electronics Society |
| Starting Page | 1579 |
| Ending Page | 1588 |
| Page Count | 10 |
| File Size | 1290783 |
| File Format | |
| ISSN | 08858993 |
| Volume Number | 27 |
| Issue Number | 3 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Windings Light emitting diodes Inductors Inductance Magnetic cores Driver circuits Voltage control variable boost inductance LED driver power factor correction (PFC) single stage |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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