查询词典 rectifier instrument

Comparing the synchronous rectifier to normal circuit by calculating the efficiency indicates that forestay is much better on efficiency and thermal performance. A simple circuit with good consistency, high efficiency, high reliability and low cost is presented in this paper. The feasibility is proved by emulating with computer.

通过分析已有的集中解决隔离型变换器输出带预偏置电压启动的解决方案，提出了一种全新的一致性好、成本低、效率高、简单和可靠性高的解决隔离变换器输出有预偏置电压的启动问题的电路，通过仿真验证了其可行性。

One magnetic suction cup, is the production of ordinary electromagnetic sucker, permanent magnet disk, circular disk, the disk and professional powerful multifunction disk a total of five series of more than 150 varieties of specifications, in addition to permanent magnet lifting device, frame-type high-performance back demagnetizer , rectifier controllers and other products.

其一磁力吸盘，现生产普通电磁吸盘、永磁磁盘、圆形磁盘、多功能强力磁盘和专业用磁盘共五大系列150多个规格品种，此外还有永磁起重器、框式高效退磁器、硅整流控制器等产品。

Wind power generation ; PWM rectifier ; interface circuit ; common-mode voltage

风力发电；脉宽调制整流器；接口电路；共模电压

Power factor characteristics of the rectifier is introduced, and control methods for the conduction angles are analyzed.

介绍了整流装置的功率因数的特点，分析了导通角的控制方法。

Based on the mathematical model of three phase PWM rectifier, and use average state method and coordinate transformation to simplify it.

建立了三相PWM高频整流器的数学模型，并利用平均状态空间法和坐标变换使模型简化。

Active power factor correction circuit can effectively reduce the harmonics of the rectifier and can meet the harmonics standard.

有源功率功率因数校正技术能够有效的消除整流装置的谐波，因此具有广泛的应用前景。

CH400 transformer coulometer can be widely applied in test on production line of small manufacturer of transformer or rectifier power or in labs.

CH400变压器电量测量仪系列可广泛用于各种小型变压器或整流器电源等厂家的生产流水线测试，实验室试品试验等场合。

Our proxy product includes: SEMKRON; SIEMENS; SanKen; SANRex; FUJI; TOSHIBA; MITSUBISHI; Eupec; HITACHI; IXYS; IR; NIPPON; VICOR; LAMBDA; And so on the overseas well-known company produces GTR, IGBT, IPM,PIM, the silicon-controlled rectifier, the crystal thyratron, quicklyrestore the diode, the rectification bridge.

我们的代理产品有：三菱、三社、三垦、富士、东芝、西门子、西门康、摩托罗拉、IR、EUPEC、IXYS等国外知名公司生产的GTR、IGBT、IPM、PIM、可控硅、晶闸管、快恢复二极管、整流桥。

And then, control circuit of one cycle controlled Boost PFC rectifier is improved with the basic idea of One Cycle Control.

然后，根据单周期控制的基本思路，改进了单周期控制的高功率因数整流器的控制电路。

Then, on the basis of the functional verification, the system architectures of the radio frequency analog front end and the control logic circuit for the passive UHF RFID transponder are studied and designed with low-power design techniques. The RF AFE circuit includes rectifier, matching network, backscatter, regulator, AM demodulator, voltage reference, local oscillator and power on reset circuit, and so on. The control logic circuit contains clock synchronization module, decoding module, coding module, cyclic redundancy checksum module, power management unit, control unit, shift register and memory.

然后，在功能验证的基础上，重点研究了无源超高频射频识别标签芯片射频模拟前端电路和控制逻辑电路的系统架构，并采用低功耗设计技术对其进行了设计，射频模拟前端电路设计包括了整流器、匹配网络、反向散射电路、稳压器、AM解调器、电压参考源、本地振荡器以及上电复位电路等，控制逻辑电路设计包括了时钟同步模块、解码模块、编码模块、CRC校验模块、功率管理单元、控制单元、移位寄存器和存储器等。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。