介绍EH200型直流供电电力机车的开发。
The development of EH200 type DC electric locomotive is introduced in this paper.
介绍了一次加料式竖炉型直流炼钢电弧炉的研究、开发。
The research and development on shaft type D. C. arc furnace charging of once for all were introduced.
该文提出一种对称式RCD箝位的倍流整流双管正-反激型直流变换器。
This paper proposes a symmetrical RCD clamp dual switch forward-flyback with current-doubler-rectifier (CDR) converter which adopts the staggered clamp structure with two RCD type circuit.
直流分压器集开关电源和电能变换于一体,可以用来设计降压型直流电源。
C voltage divider includes switching power and electricity - transformation, so that it can be used to design lower voltage of direct current power.
本文介绍了开关型直流变换器的非线性离散时域模型的建立及其机辅分析方法。
In this paper, a nonlinear discrete time domain modeling and computer aided analysis technique is presented for Switched DC-DC Converters.
本文介绍了智能型直流操作电源的性能和特点,阐述了在实际应用中的可靠性和优越性。
The paper presents performance and features of the intelligent dc operating power source, and explains its reliability and superiority in practical use.
通过对DQF-18型直流起动发电机的优化结果分析,证明该优化模型和方法是可行的。
The optimum result of the motor DQF-18 is given. Furthermore, the model and method for optimization turn out to be effective.
论述WB型直流电压变送器的工作原理、完成转换的各个模块电路的作用及变送器总电路的特点。
The work principle of the WB-type DC voltage transmitter, the functions of each conversion module and the characteristic of the whole circuit of the transmitter are elaborated in this paper.
本文介绍一种新颖的电容降压型直流稳压电路,电路不含变压器,只由几个简单的电子元件组成。
A novel auxiliary DC power introduced in this paper. The structure of the circuit is very simple.
笔者曾参与研制成功一种利用高频型快速晶闸管实现的PFM型直流稳压电源,已付诸实际使用。
The author bas joined in and auc- cessfully accomplished a PFM DC regulated power supply using high frequency fast switching thyristor, which has been adopted in practical application.
实验证明这种直流放大器与YM 3891型直流放大器效果相近,是一种价廉、实用的直流放大器。
Experimental results indicate that, the DC amplifier is similar to YM3891DC amplifier functionally, but cheaper and more practical than the latter.
同时也提出将用于通用型直流电压源逆变器的PWM波生成方法,经过同步处理后,可以应用到该交-交变频器中。
Meanwhile, the PWM generated methods of a universal DC voltage source inverter are applied to the cycloconverter after the synchronous process.
结合一款升压型直流-直流变换器,介绍了峰值电流模式中的斜坡补偿基本原理,提出了一种分段线性斜坡补偿电路。
This paper introduces the theory of slope compensation and presents a piecewise linear slope compensation circuit for peak current mode boost DC-DC converter.
采用内置式启动控制的600MW超临界压力螺旋管圈型直流锅炉,其作为被控对象的动态特性及控制系统都较复杂。
The dynamic characters and control system for 600 MW supercritical pressure once-through boiler equipped with internal start-up control are relatively complicated.
本文通过电流注入法对某型直流固态继电器输入端与输出端的电磁脉冲损伤机制进行了实验研究,确定了两种失效模式。
The electromagnetic pulse(EMP) damage mechanism and failure modes are obtained for the input port and output port of solid state relays by current injection method.
NR继电器。长寿命继电器。1表C线圈电压5伏直流。磁密封型。单面稳定。
NR-relay. Long life relay. 1 form C. Coil voltage 5 V DC. Magnetically sealed type. Single side stable.
在所谓制动阶段,功率从开关型变流器的交流侧流向直流侧;此时变流器相当于一个整流器。
During the so-called braking of the motor, the power flows from the ac side to the dc side of the switch-mode converter and it operates in a rectifier mode.
玻璃八进制型用于电力供应的无线电设备具有温和直流要求。
Glass octal type used in power supply of radio equipment having moderate dc requirements.
达松伐尔型永磁无刷直流电机本质上无起动转矩。
No torque is produced essentially at the beginning of starting d'ARSONVAL type permanent magnet brushless DC motor.
分析和比较了各种固态断路器的优、缺点,提出了适用于直流电力系统的基于IGBT的混合型固态断路器。
A novel DC hybrid solid state based circuit breaker on IGBT was presented by analyzing and comparing advantages and disadvantages of solid state circuit breakers.
若将他励直流电动机输出功率的机理等效为一个与电动机电枢绕组并联的可变电阻,可以得到他励直流电动机可变电阻型等效电路图。
The output power mechanism of a separately excited DC motor can be equivalent to a variable resistance, which is parallel with the armature winding of the motor.
作为新一代高压直流换流器的电压控制型换流器,使得小容量电力传输经济可行。
Voltage source converter as a new generation of HVDC makes the small power transmission economically feasible.
结果表明,所设计的直流开关型变换器集成模块输出电压稳定、纹波小、工作频率,高、功耗低,且体积小。
It has been shown that the designed DC switching mode converter has a stable output voltage frequency, small ripple, high operating frequency and low power consumption.
该改进型积分器消除了纯积分器带来的初值不准确、直流偏移等问题,又可以获得比低通滤波器更优的性能。
The modified integrator eliminated the initial value and DC drift problems associated with the pure integrator, and achieved a better performance than lowpass filter.
本文以现代控制理论为基础,选用二次型性能指标设计可控硅直流调速系统。
On the basis of modern control theory, the quadratic performance index was selected to design SCR DC speed-adjusting system.
简要介绍了直流钳型电流表、收音机和手机可用来粗测磁共振扫描间屏蔽效果。
DC clamp meter, portable radio and mobile phone can be used to estimate the shielding effect of MRI scanning room.
适合于个人电脑和其他掌上型电子设备中电源线路上直流对直流整流的应用。
Excellent for power line DC-DC conversion applications used in personal computers and other handheld electronic equipment.
适合于个人电脑和其他掌上型电子设备中电源线路上直流对直流整流的应用。
Excellent for power line DC-DC conversion applications used in personal computers and other handheld electronic equipment.
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