As a result, a uniform directive idea on realization of PWM mode does not exist.
因此在PWM实现方式上，缺少统一的指导思想。
The paper introduces the theory of slope compensation in the current-mode of control of PWM mode in detail.
详细介绍了PWM式中峰值电流模式控制中的斜波补偿技术的原理。
The system operates in PWM mode using IGBT modules as power drive unit and 8098 sc computer as central controller.
该系统以PWM方式工作，应用IGBT功率模块构成功率驱动单元，采用8098单片机作为中央控制器。
SSR (PIDD) mode: can achieve accurate temperature control, but the power of the noise is much larger than the PWM model.
SSR (PIDD)模式：可以达到精确的温度控制，但电源的噪音比PWM模式大得多。
To achieve precise control, the PWM mode is used to control the execution component (SSR) to adjust the resistance furnace temperature.
该系统以pwm方式对执行器件(固态继电器)进行调节，实现了对电阻炉温度的精确控制。
But limited by time and my experience, there are still some insufficiency. Such as, reduce the quiescent current and combine PFM mode with PWM mode to improve the efficiency.
由于研究时间和本人经验水平所限，本设计中还有许多不足之处需要做进一步的研究和改进。
Finally it is concluded that PWM-ON-PWM is the existing optimal PWM mode for reducing commutation torque ripples, and achieves this mode on condition of three position sensors.
最后得出对转矩脉动最优的斩波方式为PWM—ON—PWM，并在三个位置传感器的条件下运用位置预测法实现。
When the network parameters are kept constant, the results show that the variation of reflection efficiency for PWM mode according to injection power is much less than the am mode's.
研究了匹配网络参数不变时，射频电源不同调制模式对反射率的影响。实验研究表明，脉冲宽度调制模式的稳定度要明显高于振幅调制模式。
The voltage converter works in PWM mode. Frequency-control speed regulation, DC voltage supply monitoring of the converter, synchronous motor power-angle close-loop control are combined.
控制策略为逆变器PWM调压、变频调速结合逆变器直流侧电压闭环、同步电动机功角闭环控制。
PWM mode was analyzed, and a kind of variable-resistance timing Winch being of simple structure and large power supply was put forward by using wire-wound motor and series resistance timing principle.
分析了PWM的调整方式，利用绕线式电机和串电阻调速的原理，提出了一种结构简单、功率强的变阻调速绞车。
The control system adopts current PWM control mode, and high quality energy feedback with constant power could be accomplished.
控制系统采用的是电流型PWM控制方式，能够实现高品质的恒功率能量回馈。
The two parts both adopt double loop PWM control mode which consists of outer voltage loop and inner current loop.
该系统包含升压和逆变两个环节，均采用电压外环、电流内环的双环pwm控制方式。
The converter use ZVS-PWM technique and the average current mode control method, and the use of maximum current flow to achieve automatic multi-parallel current.
该变流器应用ZVS - PWM技术和平均电流模式控制方法，并采用最大电流自动均流法实现多机并联均流。
The common and differential mode voltage produced by the PWM inverter can generate large common and differential current in the motor driving system.
由三相pwm逆变器产生的共模和差模电压可以在电机驱动中产生足够大的共模和差模电流。
This paper presents a PWM scheme based on digital memory mode and discusses its asymmetric regular sampling principle and simple on -line algorithm.
提出一种基于数字存储模式的PWM调制方案，讨论其非对称规则采样原理，给出宜于在线运算的简便算法。
Phase-shifted full-bridge PWM converters work in discontinuous current mode (DCM), when the current of out-put filter inductor is discontinuous in one switching period.
当输出滤波电感的电流在一个周期内不连续时，移相全桥PWM变换器就工作在电流断续模式（DCM）。
A control system based on TMS320F240 was designed. PWM control mode was adopted to control output power and output characteristic of the machine.
设计了以TMS320F 240为核心的控制系统，为了控制焊机的输出功率和焊机的输出外特性，设计采用了脉宽调制型控制方式。
An improved alternative single-chop PWM control mode is proposed in the paper, which ensures the consistency of power loss between the upper transistor and the lower one.
提出一种改进型单斩pwm调制方式，对桥臂上下管进行轮换单斩，保证了每个开关管损耗的一致性。
Control mode adopted voltage PWM, regulating open time to timing.
采用电压pwm的调速方式，通过调节pwm波的占空比实现调速。
The circuit adopts PWM chopper control mode, power factor on the system side is close to 1.
通过采用PWM斩波控制方式，使系统侧功率因数接近于1。
According to torque ripple of brushless DC motor, the different PWM modulation mode and overlapping commutation method are used to minimize torque pulsation when current commutation is considered.
针对无刷直流电动机的转矩脉动，提出采用不同的PWM调制方式以及不同的重叠换相角减小换相电流所引起的转矩脉动。
Data acquisition control unit, mode conversion unit and PWM output unit are integrated based on PCI-8333 to achieve the strategy of control system.
设计集成了基于PCI- 8333的数据采集控制单元、模式转换单元和PWM波形输出控制单元，来实现系统的控制方案。
The reaction flywheel control system was designed by using PWM technology under the velocity control mode, and the hardware circuit was also set up.
设计了由PW M脉宽调制技术构建的工作在速率控制模式下的反作用飞轮控制系统，并对其硬件电路进行了具体实现。
For PWM DC servo object, this paper combined the sliding mode control method with the integral control method effectively to form a kind of DC servo controller with high performances.
针对PWM直流伺服被控对象，将滑模变结构控制与积分控制有效地结合在一起，综合出一种高性能直流伺服控制器。
DC PWM servo system is controlled by this kind of discrete sliding mode control strategy.
针对一个具体的直流pwm伺服系统，采用这种离散滑模控制策略进行控制。
A new feedback circuit, which is designed based on PWM controller UC3842 of flyback switching mode power supply is presented.
介绍了一种基于PWM控制芯片uc 3842的反激式开关电源的反馈控制回路改进设计。
In the design of current-mode PWM DC-DC converters, the slope compensation method is widely used to prevent sub-harmonic oscillation.
设计电流模脉冲宽度调制直流转换器时，人们广泛采用斜坡补偿电路来消除谐波振荡。
In the design of current-mode PWM DC-DC converters, the slope compensation method widely used to prevent sub-harmonic oscillation can significantly weaken the load capacity under a high duty cycle.
电流模pwm集成dc - DC变换器设计中，为了防止亚谐波振荡而普遍采用的斜坡补偿，会在占空比较大时严重影响芯片的带载能力。
A high frequency single-ended flyback switching power supply is designed with current-mode PWM controller UC3842 chip as its core.
设计了一种以电流型PWM控制器UC3842芯片为核心的高频单端反激式开关稳压电源。
A high frequency single-ended flyback switching power supply is designed with current-mode PWM controller UC3842 chip as its core.
设计了一种以电流型PWM控制器UC3842芯片为核心的高频单端反激式开关稳压电源。
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