TN722.32 99052973超短脉冲激光再生与多程放大器的理论分析与实验建立Ⅰ.理论部分=Theoretical analysis and experimentalestablishment of the regenerative andmulti—pass ulrashort pulsed laser amplifiers:I.theory[刊,中]/吴秋...TN722.32 99052973超短脉冲激光再生与多程放大器的理论分析与实验建立Ⅰ.理论部分=Theoretical analysis and experimentalestablishment of the regenerative andmulti—pass ulrashort pulsed laser amplifiers:I.theory[刊,中]/吴秋阳,王文耀,杨晓东,王益民,张正泉,徐至展(中科院上海光机所强光光学开放实验室.上海(201800))//光学学报.—1999,1 9(3).—340—346从半经典理论的麦克斯韦—布洛赫方程出发,对种子激光脉冲在再生和多程放大器中的放大过程进行了分析,给合实际的物理条件得出了放大器的峰值输出的解析表达式,并详细地分析了放大器的损耗和增益对峰值输出的提高和稳定的影响。得出了一些对实际搭建工作具有指导意义的结论。图6参8(严寒)展开更多
An analytic closed-form based loop compensator for direct current-direct current （DC-DC） buckboost converter in discontinuous conduction with peak current-mode control is proposed to increase efficiency of the desir...An analytic closed-form based loop compensator for direct current-direct current （DC-DC） buckboost converter in discontinuous conduction with peak current-mode control is proposed to increase efficiency of the desired process through systemization. As a result, the process saves a lot of computation time that can be translated into design cost savings. Finally, the output voltage regulation in the presence of audio susceptibility and output impedance is shown for verifying.展开更多
Two TFs （transfer functions） are needed to analyze switching DC-DC converters in control-voltage mode： the duty-cycle to output-voltage （control to output） and the input-voltage to output-voltage （line to output...Two TFs （transfer functions） are needed to analyze switching DC-DC converters in control-voltage mode： the duty-cycle to output-voltage （control to output） and the input-voltage to output-voltage （line to output）. To obtain these TFs a small-signal analysis is required. The CCM （continuous conduction mode） and the DCM （discontinuous conduction mode） analysis are different. When a circuit includes the loss resistances of the components, the number of parameters increases considerably, making manual nodal-loop circuit analysis techniques impractical to obtain the TFs. Moreover, these circuits are bilinear （non-linear） and it is necessary to linearize the equations at a DC operating-point （approximate linearization）. Vorp6rian describes a PWM （pulse-width-modulated） switch model that includes all non-linear parts of the DC-DC switching converters. This model can be linearized and replaced on the switching converter schematic leading to a linear circuit. At this point it is possible to use symbolic analysis programs to obtain these TFs or to simply apply numerical values for either the Bode diagrams or the calculation of poles and zeros. Here we describe an application of Ekrem Cangeici＇s method on X DC-DC converter to obtain control to output and line to output TFs in CCM and DCM including loss resistances. The method presented in this paper is optimized to use in the online publishing platform OctaveRS. Also the control to output TF for PCC （peak current controlled） in CCM is obtained.展开更多
文摘TN722.32 99052973超短脉冲激光再生与多程放大器的理论分析与实验建立Ⅰ.理论部分=Theoretical analysis and experimentalestablishment of the regenerative andmulti—pass ulrashort pulsed laser amplifiers:I.theory[刊,中]/吴秋阳,王文耀,杨晓东,王益民,张正泉,徐至展(中科院上海光机所强光光学开放实验室.上海(201800))//光学学报.—1999,1 9(3).—340—346从半经典理论的麦克斯韦—布洛赫方程出发,对种子激光脉冲在再生和多程放大器中的放大过程进行了分析,给合实际的物理条件得出了放大器的峰值输出的解析表达式,并详细地分析了放大器的损耗和增益对峰值输出的提高和稳定的影响。得出了一些对实际搭建工作具有指导意义的结论。图6参8(严寒)
文摘An analytic closed-form based loop compensator for direct current-direct current （DC-DC） buckboost converter in discontinuous conduction with peak current-mode control is proposed to increase efficiency of the desired process through systemization. As a result, the process saves a lot of computation time that can be translated into design cost savings. Finally, the output voltage regulation in the presence of audio susceptibility and output impedance is shown for verifying.
文摘Two TFs （transfer functions） are needed to analyze switching DC-DC converters in control-voltage mode： the duty-cycle to output-voltage （control to output） and the input-voltage to output-voltage （line to output）. To obtain these TFs a small-signal analysis is required. The CCM （continuous conduction mode） and the DCM （discontinuous conduction mode） analysis are different. When a circuit includes the loss resistances of the components, the number of parameters increases considerably, making manual nodal-loop circuit analysis techniques impractical to obtain the TFs. Moreover, these circuits are bilinear （non-linear） and it is necessary to linearize the equations at a DC operating-point （approximate linearization）. Vorp6rian describes a PWM （pulse-width-modulated） switch model that includes all non-linear parts of the DC-DC switching converters. This model can be linearized and replaced on the switching converter schematic leading to a linear circuit. At this point it is possible to use symbolic analysis programs to obtain these TFs or to simply apply numerical values for either the Bode diagrams or the calculation of poles and zeros. Here we describe an application of Ekrem Cangeici＇s method on X DC-DC converter to obtain control to output and line to output TFs in CCM and DCM including loss resistances. The method presented in this paper is optimized to use in the online publishing platform OctaveRS. Also the control to output TF for PCC （peak current controlled） in CCM is obtained.
