1、

The rate equation was solved to analyze the influence of upconversion effect to the output power, slope efficiency and threshold power in CW operation and the pulse energy, pulse width and peak power in Q-switched operation.

通过速率方程的求解模拟分析了上转换效应对连续运转Ho激光器输出功率、斜率效率和阈值功率的影响以及对调Q运转Ho激光器单脉冲能量、脉冲宽度和峰值功率的影响。

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2、

A two-dot sampling method of SPWM with nonsymmetrical rules was presented. It made the generation time and width of pulse closer to the nature sampling method, so the content of output humorous wave was reduced effectively.

提出一种两点式不对称规则SPWM工程采样法,使脉冲发生时刻和宽度更接近于自然采样法,从而可有效地降低输出谐波含量。

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3、

This paper introduces the circuit realization of a fast timing discriminator. Its input signals can be non-inverting or inverting signals of every kind of voltage level while its output is multi-channel negative standard NIM signal with adjustable pulse width.

介绍了一种快速定时甄别器的电路实现,输入可以是各种电平的正相或者负相信号,输出是多路脉冲宽度可调的负相标准NIM信号。

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4、

If the pulse width and frequence change in line, the average output power can also reach 500w in the whole pulse width range, the max single pulse energy is 56 J;

试验得到激光器参数脉冲宽度和频率协调改变,可使激光器在整个脉宽范围内都能稳定500w输出;最大单脉冲能量56J;

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5、

A Class D amplifier comprises a pulse width modulator and an output stage.

D类放大器包括脉宽调制器和输出级。

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6、

Change the inverter output voltage or output current are two kinds of different ways, namely, PAM pulse amplitude modulation control and PWM control pulse width modulation.

改变变频器的输出电压或输出电流有二种不同的方法,即PAM脉冲幅值调制控制和PWM脉冲宽度调制控。

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7、

Control circuit is taking pulse wide modulation circuit as core. By comparison of given signal and feedback signal of overvoltage, get the width-adjustable pulse signal for regulating output of welding power source so as to realize the colsed-loop control to arc-welding inverter.

控制电路以脉宽调制电路为核心,通过电压给定信号和反馈信号的比较,获得宽度可调的脉冲信号,调节焊接电源的输出,并实现对弧焊逆变器的闭环控制。

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8、

the development of programmable pulse generator is a variable pulse width signal generator, the output for the ttl level.

所开发的可编程单脉冲发生器是一种脉冲宽度可变的信号发生器,其输出为TTL电平。

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9、

the pwm generator has a control byte ( 8 bits) that is used to provides a continuous, variable duty cycle output with user control of the cycle time and the pulse width.

在使用PWM高速脉冲输出时,通过控制字节的设置来改变脉冲宽度和脉冲周期,实现控制任务。

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10、

controlling relays to choose different capacitors with icc, the width of output pulse can be adjusted.

利用工控机控制继电器选择不同的充放电电容,就能调节输出陡脉冲的脉宽。

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11、

design of monostable trigger with large-width output pulse

大脉宽单稳态触发器的设计

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12、

The laser output energy, dynamic to static ratio, pulse bandwidth ana spectral line width etc. by Q-switching ware mea-sured and analysed theoretically.

测量了调Q后激光输出的能量、动静比、脉宽、谱宽等,并从理论上进行了一些分析。

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13、

The pulse width, pulse energy and pulse repetition rate of different output coupler are measured.

测量了不同透过率输出镜条件下,输出调Q脉冲的宽度、能量及脉冲重复率。

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14、

On idle, using the voltage-feedback control makes PWM modulator output the pulse disjointedly with blocking-oscillation frequency lowered and the pulse width narrowed. Accordingly not only the no-load loss is less, but also the transformer is not easy to saturate.

系统在空载时由于采用电压反馈控制使PWM调制器间断地输出脉冲,间歇振荡的频率低而脉冲宽度窄,不但空载损耗小,而且使变压器不易饱和;

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