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Current Mode小信号模型及环路分析
2019-05-06 06:08
UC3844是美国Unitrode公司(已被TI公司收购)生产的高性能电流型脉宽调制器(PWM)控制器。早期的PWM控制器是电压控制型的,常用的电压型PWM控制器有
2017-11-10 17:56
Current mode DC/DC和DCAP2 mode DC/DC设计实例
2019-05-06 06:07
Abstract: Current-mode data transmission is the preferred technique in many environments
2009-04-20 16:17
3842开关电源电路图,电路元件有:UC3844 TL431 7905 IRF830
2008-01-02 21:56
设计了一种基于TL494芯片的电压负反馈配合电流正反馈的CO2焊机送丝调速电路。该电路通过PWM脉宽调制,实现转速的均匀调节,并具有过电流截止保护功能。
2017-12-05 11:55
下面来介绍一种基于电流型PWM芯片UC3844的开关电源的反馈回路改进,采用可调式精密并联稳压器加光电耦合器接法,具体使用TL431加PC817。这种方法由于使用了精密电压源做控制参考电压,控制精度非常高,性能稳定。
2017-10-23 10:36
本文主要介绍了3844和2844可以代换吗。2844和3844的区别是温度范围不同。前者要宽于后者,性能是一样的。要求不高的场合可以代用。UC3844是高性能固定频率电流模式控制器专为离线和直流至直流变换器应用而设计
2018-01-31 17:08
method has its advantages and disadvantages. Switch-mode charging minimizes power dissipation over a wide range of AC adapter voltages, but
2009-04-30 10:45
本文给出了一种用于电机控制的新型多输出反激电源的设计。该设计基于UC3844高性能电流型PWM控制器。电压反馈和电流反馈双闭环串级结构,使输出电压能够很好地稳定,电压调整率和负载调整率都较高。光耦
2018-03-29 18:35