Design 89C51 microcontroller, ADC, DAC and op amp circuits such as circuits composed of single-charged objects constitute the feedback loop. 1. Hardware Circuit Design: 89C51 minimum system model into the circuit with a circuit model ADC0809 and TLC7528 by the op amp form of controlled object. 2. Control Algorithm: Incremental of PID control. 3. Software design: the main program, timer interrupt program, A/D conversion process, filtering process, D/A output process, PID control procedures

DAC0832.txt

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