用于LTE功率放大器应用的仅开关变换器多相包络调制器及压摆率增强器

With ever-growing energy crisis in wireless communication, effective envelope tracking solutions are in high demand for efficient operation of power amplifiers. Conventionally, a linear regulator is utilized to assist a switching converter to achieve fast tracking performance, but is highly inefficient. To overcome such an efficiency limitation, a dual-phase switching-converter-only topology is pr...