脉频调制 meaning in Chinese
pfm pulse frequency modulation
Examples
- Up to now , the normal control mode for smart power integrated circuit ( spic ) has pwm and pfm . pwm bases on cfvw ( constant frequency variable width ) control pulse , whereas , pfm bases on cwvf ( constant width variable frequency ) control pulse
迄今,智能功率集成电路( spic )习用控制模式为恒频变宽( cfvw )的脉宽调制模式( pwm )和恒宽变频( cwvf )的脉频调制模式( pfm ) 。 - At present , there are three kinds of modes of modulation including pulse width modulation ( pwm ) , pulse frequency modulation ( pfm ) and the modulation of combination of pwm and pfm . lots of products using above modulations are designed in many famous companies
目前,在功率变换系统中常见的有三种调制模式:脉宽调制模式( pwm , pulsewidthmodulation ) 、脉频调制模式( pfm , pulsefrequencymodulation )和二者可以相切换的pwm / pfm模式。 - Buck zvs - mr - tl converter is taken as the examples to illustrate the operation of the zvs - mr - tl converters . the operation of buck zvs - mr - tl converter is analyzed as well as parameter design , realization of pulse - frequency - modulation ( pfm ) interleaved control and comparison between zvs - mr converters and zvs - mr - tl converters . a 1000w prototype converter is built in the lab to verify the effectiveness of the proposed converter
本文以buck零电压开关多谐振三电平变换器为例，详细分析了它的工作原理、参数设计、脉频调制交错控制的实现、与常规的多谐振变换器的对比，并以一个1000w的原理样机对该变换器进行实验验证。 - （ 2 ） the major circuit has been established , composed of rectifier 、 buck - chopper 、 push - pull inverter and matching network , which realizes high - power supersonic ac output . to achieve maximal output power , the pulse frequency modulation ( pfm ) has been applied to auto - adjustment of output frequency , which corresponds to the load ' s resonant frequency
（ 2 ）建立了超声电源主电路，其中包括：整流、直流斩波、推挽逆变器和匹配网络等部分，实现了大功率超声频交流电的输出，输出频率的脉频调制（ pfm ）和输出功率的脉宽调制（ pwm ） 。