本文所设计开关电源是采用STC12C5A60S2单片机产生47KHZ的

本文所设计开关电源是采用STC12C5A60S2单片机产生47KHZ的PWM脉冲信号，经过IR2104控制同步整流的BUCK（BOOST）电路。其中，单片机内部自带的10位ADC能通过电压电流检测电流，并实时反馈电流和电压数值。当按键设定在放电状态时，同步整流电路为BUCK状态,能输出0.5~2A的电流，按键步进值为0.05A，形成电流电压闭环控制系统。当按键设定在充电状态时，同步整流电路为BOOST状态,能输出30V电压，形成电压闭环控制系统。此外，液晶屏幕能显示输入电压、输出电压、输出电流，以及设定电流值。
测试结果：同步BUCK效率为94%，同步BOOST效率为96.12%。测试结果表明，所设计开关电源具有充电过压保护功能。

結果 (英文) 1:

Switching power supply designed in this article is the use of STC12C5A60S2 monolithic integrated circuit PWM pulse signal 47KHZ, IR2104 control of synchronous rectifier BUCK (BOOST) circuit. Among them, the monolithic integrated circuit internal 10-bit ADC with voltage and current test current, and feedback in real time current and voltage values. When the button set in the discharged state, State of synchronous rectifier BUCK, 0.5~2A current output, press the step value is 0.05A, current and voltage close loop control system is formed. When keys set on the charging State, synchronous rectification circuit to BOOST State output voltage 30V form a closed-loop control system. In addition, the LCD screen displays the input voltage, output voltage, output current, and set the current value.Test results: synchronous BUCK is 94%, synchronous BOOST efficiency of 96.12%. Test results showed that the design of switching power supply with rechargeable overvoltage protection.

結果 (英文) 2:

As used herein, the switching power supply design is the use of STC12C5A60S2 microcontroller generates a PWM pulse signal 47KHZ, after IR2104 control synchronous rectification BUCK (BOOST) circuit. Among them, the MCU comes with 10-bit ADC voltage current through the current detection and real-time feedback current and voltage values. When the button is set in a discharged state, the synchronous rectification circuit is a BUCK state, to 0.5 ~ 2A output current key step is 0.05A, a current-voltage closed-loop control system. When the button is set in the state of charge, as a synchronous rectifier circuit BOOST state, to 30V output voltage, the voltage forming a closed loop control system. In addition, the LCD can display the input voltage, output voltage, output current, and set current value.
Test results: Synchronous BUCK efficiency of 94%, synchronous BOOST efficiency 96.12%. Test results show that the design of switching power supply with charging overvoltage protection.

結果 (英文) 3:

In this paper, the design of switching power supply is the use of STC12C5A60S2 microcontroller 47KHZ pulse signal generated by IR2104 control synchronous rectification BUCK (BOOST) circuit. Among them, the microcontroller built-in 10 bit ADC can detect current through the voltage and current, and real-time feedback current and voltage values. When the key is set in the discharge state, the synchronous rectification circuit is BUCK state, can output 0.5~2A current, the key step value of 0.05A, the formation of current and voltage closed-loop control system. When the key is set in the charging state, the synchronous rectification circuit is BOOST state, can output 30V voltage, forming a closed-loop voltage control system. In addition, LCD screen can display input voltage, output voltage, output current, and set the current value.Test results: synchronous BUCK efficiency of 94%, synchronous BOOST efficiency of 96.12%. The test results show that the designed switching power supply has the function of charging overvoltage protection.