| 基于TL494开关电源的设计 |
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| 引用本文： | 白炳良,周慰君.基于TL494开关电源的设计[J].大学物理实验,2009,22(2):73-78. |
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| 作者姓名： | 白炳良 周慰君 |
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| 作者单位： | 漳州师范学院,漳州,363000 |
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| 摘 要： | 开关电源主回路将输入的15VAC电压整流滤波所得的直流电压通过升压斩波电路,变换为25-30VDC输出。主控制器为PIC16F877A单片机。整个系统由整流滤波电路、DC-DC变换器、控制电路、按键显示等模块组成。主控制器和TL494以闭环形式控制DC-DC变换电路,实现输出电压稳定可调。该电源还具有过流保护、自恢复、软启动和短路报警功能。
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| 关 键 词： | DC-DC变换器 PWM TL494 单片机PIC16F877A |
DESIGN OF SWITCHING POWER SUPPLY BASED ON TL494 |
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| Bai Bingliang,Zhou Weijun.DESIGN OF SWITCHING POWER SUPPLY BASED ON TL494[J].Physical Experiment of College,2009,22(2):73-78. |
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| Authors: | Bai Bingliang Zhou Weijun |
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| Institution: | Zhangzhou Teachers College;Zhangzhou;363000 |
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| Abstract: | Main circuit switching power supply for 15VAC input voltage from the rectifier DC voltage filtering through the boost Chopper circuit is transformed into 25 - 30VDC output.Main controller bases on PIC16F877A MCU,The entire system by the closed- loop control of DC - DC conversion circuit, realize adjustable output voltage stability. The power supply also features over- current protection,self- recovery,soft- start and short- circuit alarm functions. |
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| Keywords: | PWM TL494 |
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