查询词典 converters

The topology of the step-up DC/DC converters and its basic principle is first analyzed in this thesis.

本文首先介绍了升压型DC/DC变换器的拓扑结构和基本工作原理。

These converters can be used to step-up, step-down or invert an input voltage.

这些转换器可被用于对一个输入电压进行升压、降压或负输出操作。

In single stage power factor correction converters, the voltage on the storage capacitor is not controlled, its wide voltage range has detrimental effect on the circuit performance.

中文摘要：在单级功率因数校正变换器中，不能控制储能电容电压，而且电压变化很大降低了电路的性能。

In Chapter 3,Stroboscopic maps are derived to describe precisely the nonlinear dynamical characteristics of Boost PFC converters under peak-current control mode.

第三章推导出了一组频闪映射方程来精确描述峰值电流控制型Boost PFC变换器的非线性动力学特性。

The device is also ideal for all types of A/D converters of up to 14-bit accuracy, either successive approximation or inte-grating designs, and in general can offer better performance than that provided by standard self-contained references.

该设备还非常适用于所有类型的A / D转换器的分辨率高达14位精度，无论是逐次逼近或英特光栅的设计，一般能提供更好的性能比和自给自足的参考标准提供。

A method based on symbolic time series and entropy theory is proposed to analyse the nonlinear behaviours of DC-DC converters.

本文提出了一种采用符号时间序列和熵理论分析DC-DC变换器非线性行为的方法。

according to the users′ actually demand for uninterruptible power supply for loads,the internal structure of digital generator is analysed and the reason for its uninterruptible function can′t be achieved.a design of the uninterrupted power supply system which transformed from the digital generator is proposed.the system uses the inverter of generators,ac through inverter for loads,at the same time,charges the battery as ac is normal.inverter the battery dc converters to ac for load,meanwhile,starting generator,when power failure.the system applies uninterruptible power for load,whether the ac is normal or abnormal,and design voltage and frequency stabilization,output zero-interrupted,battery charging and discharging management.without requiring purchase an uninterruptible power supply separately,this design can avoid duplication of investment and wasting of resources.

快速安全提高汽轮发电机转子检修质量。。。摘要：针对用户对负载供电不间断的实际需求，分析了数码发电机的内部结构及其不能实现供电的不间断性能的原因，提出一种由数码发电机改造组成的交流不间断供电系统的设计方法。该设计利用发电机内部的逆变器，在市电正常时，由市电经过逆变器给负载供电，同时给蓄电池充电；在市电断电时，一边启动发电机，一边由蓄电池的直流电通过逆变器转换成交流电供负载使用，实现无论市电正常还是异常，系统对负载提供不间断电源。设计对市电进行稳压、稳频、输出零切换、蓄电池的充放电管理等新功能。此设计无需单独购买不间断电源，避免重复投资和资源浪费。

More significantly, it must have passed through the potential quality-bottleneck of an analog tape machine or more likely the A–D converters of digital equipment.

更引人注意的是，它必须已经通过模拟及其或者像数码产品的A-D转换器中的潜在的质量瓶颈。

NIST measures the AC-DC difference of customer's thermal voltage converters by comparing them with standards composed of a thermoelement in series with a multiplying resistor.

NIST测量客户的热电压转换器，用来和那些由串联热电偶和一个电阻相乘的AC-DC对比区别。

Companies specializing in digital network monitoring, digital video and data communications product research and development and production, successful research and development Tigereye series, Cerberus series of MPEG-1, MPEG-4, H.264 network monitoring systems and digital audio and video acquisition card, SupeScan power, the environment and image monitoring system, JS series Guangduan Ji, data multiplexer, data-machine, E1/10Base-T/V3.5 converters, optical transceiver, communications transmission Access and interface protocol converter products.

公司专业从事数字网络监控、数字视频和通信数据产品的研发与生产，成功地研发Tigereye系列、Cerberus系列MPEG-1、MPEG-4，H.264数字网络监控系统及音视频采集卡，SupeScan动力、环境及图像监控系统，JS系列光端机、数据复用器、数据交叉机、E1/10Base-T/V3.5转换器、光纤收发器等，通信传输接入、接口协议转换器产品。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48