pulsed frequency是什么意思_pulsed frequency中文

pulsed frequency中文什么意思

脉冲频率

pulse frequency: 【无线电】脉冲频率。
frequency-pulsed electron capture: 频率脉冲电子俘获
pulsed frequency modulated carrier: 脉冲调频载波
pulsed frequency modulation: 脉冲频率调制
pulsed frequency-modulated carrier: 脉冲调频载波

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例句与用法

First , the operational principle of the boost converter which includes continuous mode and discontinuous mode was analyzed as well as the basic theory about current mode and the circuit modulation which includes pulse width modulation ( pwm ) and pulse frequency modulation ( pfm )
首先分析boost电路的两种工作模式,即连续电流模式和不连续电流模式,然后分析了目前应用比较广泛的电流反馈控制模式,最后对频率宽度调制( pwm )模式和频率脉冲调制( pfm )模式进行了对比分析。
With the development of the converter drive technology , the requirement for the variable frequency drive are becoming more and more strict especially for the modern converter drive employing fast switching semiconductor igbt ， though it has high pulse frequency and refreshing time of only nanoseconds , it generates emf that has adverse effect on the environment
随着频率控制传动技术的发展，对频率变速传动系统的要求越来越高，尤其是对采用快速切换的igbt半导体现代变频技术，尽管脉冲频率高或更断时间仅毫微秒内，但它们会对周围环境产生电磁场。
（ 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 ）。
A new type high efficiency synchronous step - up dc / dc converter for hand - held device is designed in this thesis . it works in the pfm ( pulse frequency modulating ) mode , and its switching frequency can up to 500 khz . it offers a built - in synchronous rectifier that reduces size and cost by eliminating the need for an external schottky diode and improves overall efficiency by minimizing losses
本文设计了一种用于移动电子设备的高效同步整流的dc / dc升压芯片,该芯片采用pfm (脉冲周期调制)调制方式,工作频率最高可达500khz ,内部集成功率管作为同步整流管,代替传统的肖特基二极管,导通电阻仅有0 . 4
The temperature range is - 30 ~ 80 . the topology of the step - up dc / dc converters and its basic principle is first analyzed in this thesis . then based on the conventional pfm control scheme , a discrete pulse frequency modulation is presented and the state space average model related to the ccm ( continue current mode ) and dcm is established
然后在传统的脉冲频率调制方式的基础上,分析了一种离散脉冲频率调制方式,并建立了这种调制方式下升压型dc / dc变换器在电流连续( ccm )工作模式和电流断续( dcm )工作模式的状态空间平均模型。

pulsed frequency中文什么意思

例句与用法

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