| |
SWITCHED-MODE TECHNIQUES WITH INDUCTIVE AND CAPACITIVE LOADS
| [View]
[Download]
|
| Author(s) |
J. K. Goodfellow; B. W. Williams |
| Abstract |
A two-point current feeding technique has been developed to control single or multi-phase switched-mode amplifiers. The control technique uses an adaptive and optimised strategy that can be applied to capacitive, inductive or resistive loads. Load current is a reproduction of a reference input signal which may be a variable frequency, variable magnitude sinusoid or a random waveform. The technique does not require load voltage measurement, and has been applied in single phase form up to power levels of 10 kVA. Total harmonic distortion levels lower than 0.2% have been achieved over the operating range of 2 Hz to 10 kHz and 0A to 80A rms using a modulation frequency of 100 kHz. System efficiency has been measured at greater than 92% at full rated output. |
| Download |
| Filename: | Unnamed file |
| Filesize: | 3.224 MB |
|
| Type |
Members Only |
| Date |
Last modified 2021-02-03 by System |
| |
 |