标题: PTC发热元件10章输入测试 [打印本页] 作者: Hu159357 时间: 2019-4-29 21:23 标题: PTC发热元件10章输入测试 If the power input varies throughout the operating cycle and the maximum value of the power input exceeds, by a factor greater than two, the power input is determined a the arithmetic mean value of the power input occurring during a representative period, then the power input is the maximum value that is exceeded for more than 10 % of the representative period. Otherwise the power input is taken as the arithmetic mean value. 2 J( W7 y1 t8 x/ C2 w% K8 j
\% h# s4 Q) m; u' W7 s2 w8 q这段怎么理解，请大佬解答啊！ + J, Z& z4 f2 ` b) ^ & p A B1 y5 @- Q3 O7 U作者: 一星如月 时间: 2019-6-14 17:36
取30分钟， 输入测试周期的积分值 和 该周期peak x 90% 比较， 哪个大去哪个
