CAJ | 학술논문

为实现稳压电源的数控调节，采用AT89 S52单片机来设计直流稳压电源。直流稳压电源通过软件的运行来控制整个仪器的工作，从而完成设定的功能。通过数字键盘来设置直流电源的输出电压，输出电压范围为0～9．9 V，最大电流为300 mA，并可由液晶屏LCD1602显示实际输出电压值。设计由单片机程控输出数字信号，经过D/A转换器DAC0832输出模拟量，再经过运算放大器LM324隔离放大，最后输出各种设备所需要的电压。实际测试表明，该设计性能优良，适用于需要高稳定度小功率恒压源的领域。
위실현은압전원적수공조절，채용AT89 S52단편궤래설계직류은압전원。직류은압전원통과연건적운행래공제정개의기적공작，종이완성설정적공능。통과수자건반래설치직류전원적수출전압，수출전압범위위0～9．9 V，최대전류위300 mA，병가유액정병LCD1602현시실제수출전압치。설계유단편궤정공수출수자신호，경과D/A전환기DAC0832수출모의량，재경과운산방대기LM324격리방대，최후수출각충설비소수요적전압。실제측시표명，해설계성능우량，괄용우수요고은정도소공솔항압원적영역。
For the realization of numerical control regulation for voltage-stabilized source , this article uses the single chip micro-computer AT89S52 to design the DC regulated power supply .By the operation of software , the DC regulated power supply controls the instruments work in order to complete the setting feature .The design uses the numeric keypad to set the output voltage DC power sup-ply.The output voltage range is 0 V~9.9 V, the maximum current is 300mA and the design can display the actual output voltage val-ue by LCD 1602 .By single chip microcomputer , the new design is programmed to output digital signal , after DAC0832 D/A converter outputs analog , then through the operational amplifier LM 324 to isolate and amplifying , finally a variety of devices voltage required is outputted.The actual tests show that the new design has excellent performance , suitable for the fields that require low power and high stability constant voltage source .