把精细时程积分法引入开关功率变换器的时域响应分析中。

A new precise time - integration method is introduced into the analysis of time domain response to switched power converters.

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内装转换开关，用于电流60A以下的电气线路中，作为电源引入开关，并可控制电动机起动变速停止换向等。

Inside installed selector switch, can be used in the circuit below60A as power lead-in switch, and the switch cab control motorstart, change speed, stop, and commutation.

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在分析三相四桥臂逆变器工作模态的基础上，引入开关状态函数建立了四桥臂逆变器系统离散的、非线性的数学模型。

A discrete and nonlinear mathematical model of three-phase four-leg inverter is built up with the switch state functions based on the analysis of its working modes.

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