关于铜线电流取值

最合适的是3.5A/平方毫米,取5A 或6A也不是不可以就是压降大点.

推挽逆变初级功率=铜线充许电流×2×电池电压         次级输出功率=充许电流×电压      次级输出功率必须小于或等于初级功率   例如：额定功率为500W的12V方波逆变器实际功率为300W，标准用线法是初级2.2毫米13A*2*12=312W,次级0.72毫米1.4*220=308W

标称线径(毫米)        截面积(平方毫米)      充许电流A     每厘米最多匝数

 0.1                                0.007854                   0.027489          83

0.2                                   0.03142                  0.10997              44

0.31                                0.07548                  0.26418               28

0.41                                 0.132                     0.462                  22

0.51                               0.2043                      0.71505              18

0.62                                0.3019                    1.05665                15

0.72                               0.4072                      1.4253                 12

0.8                                0.5027                       1.75945               11

0.9                               0.6362                        2.2267                 10

1.0                               0.7854                        2.7489                   9

1.2                                 1.131                        3.9585                   7

1.5                              1.767                            6.1845                  6

1.81                             2.753                            9.6355                  5

2.02                             3.205                          11.2175                 4

2.44                            4.676                            16.366                 3

3.0                              7.068375                      24.739                 3