提出了一种基于临界电流模式的峰值电流控制技术来实现开关电源的功率因数校正任务。
A critical current mode based on the peak current control technology to achieve switching power supply power factor correction task is proposed.
结果显示，气流的改变主要受电弧瞬时功率控制，最大流量不是发生于压力峰值时刻而是出现在电流过零时。
It is found that the gas flow is mainly controlled by instantaneous arc power and the maximum of gas flow appears not at peak pressure, but at current zero.
无功补偿可以提高功率因数，变压器的经济运行可以最大限度地降低变压器的电能损耗，需量控制能够降低企业最大峰值负荷，降低生产成本。
It concludes that reactive compensation can increase power factor. Economical transformer operation can decrease energy loss. Power demand control can shed maximum peak load and lower productive cost.
采用时间控制、变形量控制和功率峰值控制三种控制方式实现了焊接过程的自动控制。
Three control modes have been worked out, such as time-control, deformation-control and power-peak control. Each model realizes automatic control in linear friction welding.
首先论述了临界电流模式的峰值电流控制技术的基本思想，其次论述了采用控制芯片ucc 38051制作了一台输出功率为100w的原理样机。
Firstly it expounds peak current control technology of the critical current mode, then discusses a 100w laboratory prototype based on control chip UCC38051.
功率因数校正级和DC/DC 变换级分别采用平均电流控制和峰值电流控制方法。
The power-factor-correction circuit and the DC/DC converter are realized by average-current control and peak-current control, respectively.
功率因数校正级和DC/DC 变换级分别采用平均电流控制和峰值电流控制方法。
The power-factor-correction circuit and the DC/DC converter are realized by average-current control and peak-current control, respectively.
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