Digital power-factor correction for a capacitor-charging power supply
| Autor: | W.C. Dillard, R.M. Nelms, R.L. Newsom |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Total harmonic distortion
Engineering Switched-mode power supply business.industry Flyback converter Electrical engineering Power factor AC power Pulsed power Power (physics) law.invention Capacitor Control and Systems Engineering law Electronic engineering Electrical and Electronic Engineering business |
| Zdroj: | IEEE Transactions on Industrial Electronics. 49:1146-1153 |
| ISSN: | 0278-0046 |
| DOI: | 10.1109/tie.2002.803240 |
| Popis: | The design and construction of a low-power low-cost power supply capable of charging an energy storage capacitor from a 120-V AC source and capable of power-factor correction (PFC) is presented. The load that is generally connected to a capacitor-charging power supply (CCPS) is a pulsed power load (i.e., laser, cardiac defibrillator, or flash lamp). A flyback converter was incorporated into the CCPS because it is capable of charging a capacitor while maintaining a high power factor. The control system of the CCPS uses peak current control to achieve PFC and is implemented using standard "off-the-shelf" digital logic components. A 300-V prototype has been constructed and tested. The experimental results show that a high power factor is obtained by the CCPS utilizing a flyback converter and the digital logic control system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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