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400W逆变器电路

发布时间:2018-04-04  查看:427


利用TL494组成的400W大功率稳压逆变器电路。它激式变换部分采用TL494,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=VT1、VT2、VD3、VD4构成灌电流驱动电路,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=驱动两路各两只60V/30A的MOS FET开关管。如需提高输出功率,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=每路可采用3~4只开关管并联应用,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=电路不变。TL494在该逆变器中的应用方法如下:

第1、2脚构成稳压取样、误差放大系统,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=正相输入端1脚输入逆变器次级取样绕组整流输出的15V直流电压,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=经R1、R2分压,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=使第1脚在逆变器正常工作时有近4.7~5.6V取样电压。反相输入端2脚输入5V基准电压(由14脚输出)。当输出电压降低时,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=1脚电压降低,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=误差放大器输出低电平,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=通过PWM电路使输出电压升高。正常时1脚电压值为5.4V,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=2脚电压值为5V,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=3脚电压值为0.06V。此时输出AC电压为235V(方波电压)。第4脚外接R6、R4、C2设定死区时间。正常电压值为0.01V。第5、6脚外接CT、RT设定振荡器三角波频率为100Hz。正常时5脚电压值为1.75V,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=6脚电压值为3.73V。第7脚为共地。第8、11脚为内部驱动输出三极管集电极,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=第12脚为TL494前级供电端,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=此三端通过开关S控制TL494的启动/停止,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=作为逆变器的控制开关。当S1关断时,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=TL494无输出脉冲,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=因此开关管VT4~VT6无任何电流。S1接通时,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=此三脚电压值为蓄电池的正极电压。第9、10脚为内部驱动级三极管发射极,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=输出两路时序不同的正脉冲。正常时电压值为1.8V。第13、14、15脚其中14脚输出5V基准电压,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=使13脚有5V高电平,亿芯网电子技术交流 - 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电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=构成误差放大器反相输入基准电压,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=以使同相输入端16脚构成高电平保护输入端。此接法中,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=当第16脚输入大于5V的高电平时,亿芯网电子技术交流 - 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电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=为了避免初级电流过大,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=增大电阻性损耗,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=宜将蓄电池改用24V,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=开关管可选用VDS为100V的大电流MOS FET管。需注意的是,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=宁可选用多管并联,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=而不选用单只IDS大于50A的开关管,亿芯网电子技术交流 - 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电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=变压器铁芯截面需达到50cm2,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=按普通电源变压器计算方式算出匝数和线径,亿芯网电子技术交流 - 电子工程师的天堂 - ICBuy http://www.icbuy.com http://tec.icbuy.com PGEgaHJlZj0iaHR0cDovL3RlYy5pY2J1eS5jb20vIiB0YXJnZXQ9Il9ibGFuayI+5Lq/6Iqv572R55S15a2Q5oqA5pyv5Lqk5rWBPC9hPiAtIDxhIGhyZWY9Imh0dHA6Ly90ZWMuaWNidXkuY29tLyIgdGFyZ2V0PSJfYmxhbmsiPueUteWtkOW3peeoi+W4iOeahOWkqeWggjwvYT4gLSA8YSBocmVmPSJodHRwOi8vdGVjLmljYnV5LmNvbS8iIHRhcmdldD0iX2JsYW5rIj5JQ0J1eTwvYT4gICBodHRwOi8vd3d3LmljYnV5LmNvbSAgaHR0cDovL3RlYy5pY2J1eS5jb20gMzdxdHhBQ3E3YWNDNTMzQTNRMzU=或者采用废UPS-600中变压器代用。如为电冰箱、电风扇供电,亿芯网电子技术交流 - 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