A pulse frequency modulation (PFM) with discrete frequency is designed.
设计了一种离散频率的PF M控制方式。
This research is aimed to get higher quality functions by use of single- chip processor and way of pulse frequency modulated (PFM) or pulse width modulated (PWM).
用单片机作为控制手段，采用脉冲调频（或调宽）方法，达到了较理想的控制品质。
A pulse frequency modulation (PFM) circuit for retinal prosthesis, which generates electrical pulses with frequency proportional to the intensity of incident light, is presented.
提出了一种用于视网膜修复的脉冲频率调制电路结构。
It operates both in current mode at high output load and in pulse frequency modulation (PFM) at light load to reduce the power dissipation.
它在重载下工作于电流控制模式，轻载下工作于脉冲频率调制(PF M)模式来降低功耗。
This paper describes the major performance and applications of the PFM (pulse frequency modulation) optical fiber transmission equipment for colour TV programs with two accompanying sound channels.
本文叙述PFM彩色电视双伴音传输设备的主要性能和应用。
This paper describes the major performance and applications of the PFM (pulse frequency modulation) optical fiber transmission equipment for colour TV programs with two accompanying sound channels.
本文叙述PFM彩色电视双伴音传输设备的主要性能和应用。
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