在一种设计中,如果发射机输出功率电平低于切换点则可为SPS接收机选择第一(例如,低功率)模式。
In one design, a first (e. g., lower power) mode may be selected for the SPS receiver if the transmitter output power level is below a switch point.
内部的功率因数校正(PFC)电路以临界导通模式(CCM)工作,可获得高功率因数、低总谐波失真(THD)及直流电压调整。
PFC circuitry operates in critical conduction mode(CCM)and provides for high PF, low THD and DC bus regulation.
在第二子模式(“低输出功率子模式”)中,使用脉冲宽度调制来调节VOUT,但转换器开关频率固定在第一频率。
In a second sub-mode ('low output power sub-mode'), VOUT is regulated using pulse width modulation, but the converter switching frequency is fixed at a first frequency.
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