An Approach To Develop AModified Resonant Single Ended Primary InductorConverter With High Efficiency And Wide VoltageRanges
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| Author | Ninsha Miriyam Raju,J Velmurugan |
| ISSN | 2306-708X |
| On Pages | 37-42 |
| Volume No. | 2 |
| Issue No. | 3 |
| Issue Date | ------- |
| Publishing Date | ------ |
| Keywords | Single ended primaryinductor converter(SEPIC)converter,soft switching,PIDcontroller,andON-OFFcontrol. |
Abstract
Thisworkreports a modifiedresonantSEPICconverter.Itprovidesbetterefficiencyoverawideinputand output voltage range, simple circuit and smallsize. Its controlmethodgivesafasttransientresponseandefficientlight load operation. Theconverter achieves higher than 87% efficiencyacrosstheentireinputvoltagerangeatnominaloutputvoltageandmaintainsgoodefficiency across the wholeoperating range.Here we set up a modified SEPIC converter with switching frequency20MHz.Itsinputvoltagerangesfrom3.6Vto7.2Vanditsoutputvoltagerangesfrom3Vto9V.Itsratedpower is 3W. HereweareusingaPIDcontrollerwhichdoesn’thave sustainedoscillations. ThisdesignissuitableforadaptivebiascontrolofanRFpower amplifierfromabatteryinput,digital cameras, cellular phones,laptops, servers etc…
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