GP7101是一款具有过压保护功能的I2C信号转PWM信号转换器，可以将输入的I2C数据线性转换为0%-100%占空比的PWM信号输出。这款芯片具有多种优秀性能，包括数据输入范围为0x00-0xFF或0x0000-0xFFFF，输出PWM信号频率范围为1Hz至100KHz，输出PWM信号高电平为2.7V-5.5V，最大PWM占空比误差小于1%，PWM占空比线性度误差小于...
图1是PWM-DAC的系统整体信号处理框图,包括PWM输出模块、RC低通滤波模块、驱动放大。其中PWM输出模块由微处理器通过软件编程来实现占空比可调的PWM波,在系统电源电压确定的情况下(5V/3.3V),PWM波的占空比决定着DAC电压输出的大小。RC低通滤波模块滤除PWM波的谐波分量,抑制输出电压的纹波。驱动放大模块采用运算放大器设计...
将PWM波利用傅里叶级数展开，可以看出其由直流分量和谐波分量构成，直流分量由占空比p决定，通过调节p值即可实现电压输出。为了消除PWM波的谐波分量，低通滤波器起到关键作用，滤波器衰减系数的确定考虑输出电压分辨率和稳定性。静态输出评价指标为输出分辨率和稳定性，动态输出则关注分辨率、稳定性和阶跃响应时...
0%-100% Accuracy: 5% for PWM to voltage conversion, 1%-3% for voltage to PWM conversion Features: |Pwm 90 24|Fpv Power Pwm|How To Reduce Dc Voltage| **Versatile Power Control Module** The Voltage to PWM Converter Module is a versatile power control solution designed for a wide range of...
This paper presents a new technique of designing a direct digital controller for a single-phase pulse width modulation (PWM) converter system, based on closed-loop identification. It is difficult to analytically design a controller due to the double loop structure of the PWM converter control syste...
Learn how to produce a PWM signal from a smart DAC instead of developing a system with microcontrollers and additional external components. PDF | HTML Technical resources Video series Video series TI Precision Labs - DACs The DAC (digital-to-analog converter or D/A converter) curriculum is...
Since the power stage of a switching converter forms a nonlinear system, designing a linear controller usually involves linearizing this power stage. The traditional approach uses average modeling to provide a dynamic model for PWM- operated DC/DC converters [1]. The frequency range of interest is...
Low Cost Digital Controller for PWM Converter From the viewpoint of robust current control, it is important to design a digital current controller for PWM power converters which has appropriate measure... Y Guijun,L Norum - 《Ifac Proceedings Volumes》 被引量: 0发表: 1989年 PWM = A study ...
A digital-to-analog converter utilizing a PWM system for converting input digital data to PWM signals and finally to an analog signal divides the sampling period of the input digital data into an even number of sampling periods and produ... T Masuda,M Ueki 被引量: 27发表: 1992年 加载更多...
4 Using PWM Output as a Digital-to-Analog Converter on a TMS320F280x Digital Signal Controller SPRAA88A The PWM/DAC approach is not new, but performance limitations have historically confined its use to low-resolution, low-bandwidth applications. The performance of the method relates directly to...