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单词 Pulse width
释义

Pulse width

原声例句
连线杂志

First, I have to point out that we reduced our pulse width down to six nanoseconds.

首先,我必须指出,我们将脉冲宽度降低到 6 纳秒。

连线杂志

Dropping the pulse width in conjunction with lower energy output, just 15 watts here, helps to make sure that we aren't ablating away the material.

降低脉冲宽度加上更低的能量输出,这里只有 15 瓦特,有助于确保我们没有烧蚀掉材料。

名人演讲综合

Steve Williamson, my colleague had the way and he wheeled history camera into my lab one night, and together we measured the compressed pulse width of the amplified pulses.

我的同事史蒂夫·威廉姆森找到了方法,一天晚上他把成像仪推进了我的实验室,我们一起测量了放大脉冲的压缩脉冲宽度。

英语百科

Pulse-width modulation

An example of PWM in an idealized inductor driven by a ■ voltage source modulated as a series of pulses, resulting in a ■ sine-like current in the inductor. The rectangular voltage pulses nonetheless result in a smoother and smoother current waveform as the switching frequency increases.  Note that the current waveform is the integral of the voltage waveform.
Fig. 2: A simple method to generate the PWM pulse train corresponding to a given signal is the intersective PWM: the signal (here the red sine wave) is compared with a sawtooth waveform (blue). When the latter is less than the former, the PWM signal (magenta) is in high state (1). Otherwise it is in the low state (0).
Fig. 3 : Principle of the delta PWM. The output signal (blue) is compared with the limits (green). These limits correspond to the reference signal (red), offset by a given value. Every time the output signal (blue) reaches one of the limits, the PWM signal changes state.

Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being maximum power point tracking.

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更新时间:2025/6/20 16:44:33