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"CodeBus" is the largest source code store in internet, now total codes/documents: 3000000+, total file size: 5000GB+
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Immediately upload various types of popular source code and related information, the more the better, the greater the chance of being searched! The more you upload files in the morning, the earlier you get coins. The more times you download, the more coins you get.
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- 【Program doc】电路分为两部分，笫一部分为DC/DC转换电路，芯片采用SG3525集成电路，作为前级MOS管的PWM控制输出，直流输出采用负反馈控制，来保证直流110V输出电压的稳定。 笫二部分为DC/AC转换电路，电路采用单片机控制，采用的微处理器型号为EM78P156，由其I/O口输出一对相位相反的控制脉冲信号（频率为50Hz/60Hz），在输出为正半周的时间内，输出信号以SPWM信号驱动的方式提供给逆变器中的功率开关管，控制输出功率开关管的导通与
Update : 2010-09-27 | Size : 102400 - 【Program doc】这是本人开发的一款1000W 交流电源的规格书,设计要求在变化的交流电源输入时，控制器通过切换继电器，控制1000W变压器的输入电压抽头，以进一步控制1000W变压器的交流输出电压，以保证其220V交流输出电压、110V交流输出电压分别自动稳定在220V±１０％、110V±１０％，
Update : 2010-09-26 | Size : 152064