The efficiency of switching power amplifiers is high, that have advantages in the situations with high demands in cubage, efficiency, and loss.
开关功率放大器由于具有很高的效率，在体积、效率和功耗要求较高的场合具有很大的优势。
2
Optical Wavelength converters based on semiconductor laser amplifiers are discussed, which is key components in photonic switching blocks, and also necessary devices in future optical communication.
讨论了基于半导体激光放大器的波长转换器，它是光交换块中的关键元件，也是未来光通信系统中的关键元件。
3
Two kinds of novel switching power amplifiers for magnetic bearings are studied in this paper separately using 3-leg and 4-leg topologies as main power circuits.