1 设计要求

■运用所学的数字电子知识，和模拟电子知识进行电路设计。

■设计出的直流电源要求输出精度高，步进电压在0.1V 左右，并且调整方便。

■使用通用器件

■要求输出电压在0~9.9V

2 技术指标

■工作电压：2-6V(典型5V)

■工作电流：4.5mA(5V时) 2.5mA(3V时)

■稳压输出值：0— 9.9V

■步进电压值：0.1V

■输出纹波电压：≤10mV

■输出电流：5A-■ the use of one design requirements by learning the number of electronic knowledge, and analog electronic circuit design knowledge. ■ the design of the DC power output and high accuracy requirements, step voltage of about 0.1V, and adjust the convenience. ■ ■ The use of a common device requested output voltage in the 0 ~ 9.9V2 technical indicators ■ Operating voltage :2-6V (typical 5V) ■ Operating Current: 4.5mA (5V pm) 2.5mA (3V pm) ■ regulator output value: 0