Name
Title | ||
|---|---|---|
The analyzing of a cascaded multilevel class-D power amplifier with the carrier-based phase-shifted modulation. |
Abstract | ||
|---|---|---|
This paper presents a switch-mode power amplifier based on a cascaded multicell multilevel circuit topology. Amplifiers based on the single-phase inverter topology or H-bridge is most easily accomplished by the direct series, or parallel, connection of multiple H-bridge power-stages. Operating these with the phase-shifted PWM control gives higher output power and produces an improved output voltage spectrum and significantly lowers output current-ripple. Two carrier-based PWM schemes, phase-shifted and level-shifted modulations, are analyzed and their performance is compared. A multilevel class-D amplifier's mathematic model is analyzed. The results of measurements taken from a laboratory setup are presented which prove the proposed amplifier improves the dynamic system behavior and have wide bandwidth. © 2011 IEEE. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/EMEIT.2011.6023284 | EMEIT |
Keywords | Field | DocType |
class-d amplifiers,multilevel,phase-shifted pwm modulation,spectrum,network topology,dynamic system,mathematical model,pulse width modulation,power amplifier,phase shift | Control theory,Direct-coupled amplifier,Pulse-width modulation,Control engineering,Electronic engineering,Linear amplifier,Modulation,Engineering,RF power amplifier,Power bandwidth,Topology (electrical circuits),Amplifier | Conference |
Volume | Issue | Citations |
3 | null | 0 |
PageRank | References | Authors |
0.34 | 1 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ying Zhang | 1 | 1 | 0.72 |
| Ming Dong | 2 | 1 | 2.07 |
| Ling Cai | 3 | 2 | 3.16 |
| Qing-de Meng | 4 | 1 | 1.06 |