请教高手翻译 摘要

来源：百度知道 编辑：UC知道 时间：2024/06/25 04:36:17
本论文做的是围绕SST89E58RD单片机进行的中频开关电源的开环的软件设计。SST89E58RD含5个通道的PWM信号输出。SST89E58RD单片机是根据输入单片机内部寄存器的不同的SPWM波的脉冲宽度来控制相应的引脚的开通或关断的时间比率从而实现。利用SST89E58RD型单片机控制5路PWM技术来控制脉冲宽度的占空比来调整输出电压的，以达到稳定输出的目的。直流电逆变成交流电有单极性逆变和双击型逆变，本论文采用的是单极性逆变；脉冲宽度的算法有自然采样法和规则采样法，本论文采用的是规则采样法。
本论文通过设定合适的载波比N，根据规则采样法计算出不同的脉冲宽度 。然后将脉冲宽度 创建一个数码表，通过单片机C语言程序查询数码表的方式来控制相应引脚的开通或关断来模拟产生SPWM波，然后通过控制PWM输入隔离电路控制IPM逆变模块来实现直流电压的逆变。
关键词：单片机开关电源；PWM；占空比

The papers do is to focus on the SCM SST89E58RD IF the open-loop switching power supply design software. SST89E58RD with five channels of PWM output signal. SST89E58RD MCU MCU is based on the input of various internal registers SPWM wave pulse width to control the corresponding pin and the opening of the time or turn-off ratio to achieve. SST89E58RD use of SCM 5 Road PWM control technology to control the pulse width of the duty cycle to adjust the output voltage to achieve the objective of stable output. DC reverse into a Unipolar AC inverter and double-click the inverter, this paper is based on Unipolar inverter; pulse width of the sampling method is the natural law and the rules of sampling method, this paper is based on sampling rules of law .
In this paper, through the appropriate set of carrier than N, according to the rules of different sampling method to calculate the pulse width. And then pulse width to create a digital form, through the SCM C language program for digi