MULTIPHASE POWER SUPPLY HAVING SINGLE COMPARATOR

A multiphase power supply includes a multiphase converter including first and second converters having differing operating phases, each of the first and second converters configured to convert input power into driving power, and transmit the driving power to a power amplifier, a detector configured to detect a voltage based on the driving power, and a duty controller configured to compare an error voltage between an envelope signal of an input signal input into the power amplifier and the detected voltage and sawtooth wave signals having different phases from each other to generate duty control signals, wherein the duty controller compares the error voltage and the sawtooth wave signals with each other using a single comparator. 提供种多相电源及对用于单比较器的锯齿波信号进行校准的方法，所述多相电源包括：多相转换器，包括具有不同的操作相位的第转换器和第二转换器，第转换器和第二转换器中的每个被配置为将输入电力转换成驱动电力并且将驱动电力发送到功率放大器；检测器，被配置为基于驱动电力来检测电压；占空控制器，被配置为将输入到功率放大器中的输入信号的包络信号和所检测到的电压之间的误差电压与具有彼此不同的相位的多个锯齿波信号进行比较，以产生多个占空控制信号，其中，占空控制器使用单比较器将误差电压和多个锯齿波信号彼此进行比较。