电源频率

The experimental results show that it achieves peak SNR of 80 dB, peak SNDR of 78 dB and dynamic range of 84 dB over a 1 MHz signal band-width when clocked at 128 MHz. It dissipates 9 mW from a 1.8 V supply.

芯片工作在1.8V电源电压和128MHz时钟频率，在1MHz的信号带宽内，调制器的动态范围为84dB，峰值SNR和SNDR分别为80dB和78dB，功耗为9mW。

The article presents the design of a soft-switching electroplate power supply.

中文摘要：软开关技术是提高电镀电源开关频率的核心技术。

The elementary principle and electric circuit design of large scale B grade submersible pump test system were given.

设计了一种大功率、双频率、高精度潜油电泵试验系统，分析了其测试原理，介绍了该系统电源的一次回路设计方法。

The elementary principle and electric circuit design of large scale B grade submersible pump test system were given. The system has high grade, double frequency and large power.

设计了一种大功率、双频率、高精度潜油电泵试验系统，分析了其测试原理，介绍了该系统电源的一次回路设计方法。

Major business of Chien Bian is tghe fabrication of Degaussing Coil/ Wire Harness/ HDMI;LVDS/FFC WAire/Enamelled Wire/ Magnesium production,Chien Bian are used extensively in TV/MONITOR/AUDIO High frequency power switches and other electronic equipmentsChien Bian carries out the strict quality management and the well-established quality guarantee system.

千葆股份有限公司的主要业务是消磁线圈/线束/HDMI；低压差分信号传输/柔性扁平排线/漆包线/镁制品的加工制作，我公司的产品广泛应用于电视/监视器/音频高频率电源开关和其他电子设备。千葆股份有限公司实施严格的质量管理，设立了完善的质量保证体系。

This paper describes a feasible calibration method, its basic principle for calibrating is: A certain function relationship is existed in equivalent inductance L of coil and the distance x between the object to be measured and the sensor coil, the measurements can be conducted with this function relationship by using frequency modulation. The calibrating system consists of measuring electric circuit, high stable voltage power supply, digital frequency meter, the conductor to be measured and the calibrated displacement sensor.

文中叙述了一种较为可行的标定方法，其标定的基本原理为：线圈的等效电感L和被测物体与传感器线圈的距离x存在一定的函数关系，利用这种函数关系用调频法进行测量，标定系统由测量电路、高稳定度稳压电源、数字频率计、被测导体及被校位移传感器组成。

This series of generating set is an perfect combination of our newly-developed TFDW4 single-phase brushless synchronons generator and Such outatanding gasoline engines as YAMAHA made in Japan, which appears small in size, light in weight, easy to start, low in fuel conswmption and noise production with a stable voltage and frequency output.

本系列发电机组，是我公司新一代TFDW4单相无刷发电机与日本雅马哈等名牌发动机完美的结合，稳定的电压和频率输出及体积小、重量轻、起动方便、油耗低、噪音低等特点，充分地体现了高性能、高质量发电机组所应具备的要素，是银行、小型餐厅、娱乐场所、家庭及牧场的理想电源。

Dr Barrett proposes that the immersion heater elements be turned on and off remotely using ripple control - a communication system with transmissions sent through the mains electricity supply as high-frequency pulses.

"我们可以通过波纹式控制遥控浸入式加热器（一个传输电源形式为高频率脉冲的通信系统）上的一种小的开关接收这些信号，根据信号提供的能源供应量来控制加热器的运作"Barrett博士说。

The chip uses a constant frequency, current-mode control scheme to provide excellent line and load regulation.

采用了恒定频率、电流模式的控制结构以提供优秀的电源和负载稳压。

AC Test Power Supply with AC-DC-AC conversion means, effectively prevent the mains voltage and frequency fluctuations of the dielectric loss test the accuracy of the impact of even the generator, the instrument can also be run correctly.

交流试验电源采用AC-DC-AC转换方式，有效避免市电电压及频率波动对介损测试准确性影响，即便是发电机发电，该仪器也能正确运行。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。