CFMS

Reduction of Conducted EMI in switching power supplies using chaotic frequency modulation scheme ( CFMS) is proposed.

探讨了混沌频率调制技术在开关变换器中抑制电磁干扰的实际效果。

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At present, reform of county forestry management system ( CFMS) has achieved great effect. But, it also has many problems and still is a key factor of development of county forestry.

目前县级林业管理体制改革已取得了重大成效，但也存在着不少问题，仍是县域林业发展的一个关口。

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Moreover, the principle of the suppression of EMI noise by CFMS was analyzed and an experimental prototype of a diagonal half-bridge forward converter was constructed.

分析了混沌频率调制抑制EMI噪声的原理，并建立了双管正激变换器的实验样机。

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Reduction of Conducted EMI in switching power supplies using chaotic frequency modulation scheme ( CFMS ) is proposed.

利用混沌频率 调制技术 从噪声产生源头上降低了开关电源传导电磁干扰.

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The effectiveness of CFMS to the EMI ( Electromagnetic Interference) suppression of switching converters was then investigated. Moreover, the principle of the suppression of EMI noise by CFMS was analyzed and a simulation model for component-level circuits was constructed.

文中探讨了混沌频率调制技术在开关变换器中抑制电磁干扰的效果，分析了混沌频率调制抑制EMI噪声的原理，并建立了元件级电路仿真模型。

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Simulated results show that, by means of CFMS, the peak value of the swit-ching-harmonics effectively decreases and the output voltage is slightly influenced, indicating that CFMS is applicable to switching converters.

仿真结果表明该技术能有效降低开关谐波峰值，而且对输出电压影响不大，具有应用前景。

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C function management system CFMS based on Database

基于数据库的C函数管理系统CFMS

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Quickening reform of CFMS, Constructing operation mechanism of forestry and realizing innovation of CFMS are essential and urgent in order to developing county forestry.

为了发展县域林业，加快县级林业管理体制改革，建立林业良性运行机制，实现县级林业管理体制有效创新是必要的和紧迫的。

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