Design and development of a high efficiency modulated Class E amplifier
| dc.contributor.advisor | Pienaar, H. C. v Z. | |
| dc.contributor.author | Crafford, Crafford, Hendrik Lambert Helberg Hendrik Lambert Helberg | |
| dc.date.accessioned | 2015-12-04T08:58:28Z | |
| dc.date.available | 2015-12-04T08:58:28Z | |
| dc.date.issued | 2006-01 | |
| dc.description | M. Tech. (Chemical Engineering, Faculty of Engineering and Technology), Vaal University of Technology | en_US |
| dc.description.abstract | Amplitude modulation is not commonly associated with effective amplifying. This work focuses on implementing amplitude modulation into a high efficiency Class E amplifier. Different types of amplifiers are compared with each other, to show the advantages of using a Class E amplifier. The theory of the Class E amplifier is dealt with in detail. A harmonic filter is designed for the amplifier to make it radio spectrum friendly. The modulation process is implemented with the aid of a transformer into the Class E amplifier. The advantage of this is that the transformer serves both as a radio frequency choke for the Class E circuit as well as a modulator. The implementation of the amplitude modulation into the high efficient Class E circuit was successful. The final Class E circuit had superb efficiency, the harmonic filter showed good harmonic attenuation and the modulation process had low distortion. All this resulted in a fine low power AM transmitter. | en_US |
| dc.format.extent | xvi, 170 leaves: diagrams | en_US |
| dc.identifier.uri | http://hdl.handle.net/10352/270 | |
| dc.language.iso | en | en_US |
| dc.subject | Class E amplifier | en_US |
| dc.subject | Amplifiers | en_US |
| dc.subject | Transformers | en_US |
| dc.subject.ddc | 621.384 | en_US |
| dc.subject.lcsh | Audio amplifiers | en_US |
| dc.title | Design and development of a high efficiency modulated Class E amplifier | en_US |
| dc.type | Thesis | en_US |