zsy00100 发表于 21-11-4 20:57:59

求助,buggy叠fet

想给buggy 换个四驱车的手绕电机,先升级一下主板,主和反面板正面都有mos,是都需要焊接上去吗?估计弄完壳子是合不上去了,叠多少层合适啊
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燃烧的垫片 发表于 21-11-4 23:10:31

我以前看见外网讨论过这个问题,fet最多叠三层,并且要把原始的fet拆掉全部换新。我自己在awd evo主板上操练了一下,没成功https://app.rcfans.com/public/emotion/face_010.png

zsy00100 发表于 21-11-5 08:06:13

燃烧的垫片 发表于 2021-11-04 23:10
我以前看见外网讨论过这个问题,fet最多叠三层,并且要把原始的fet拆掉全部换新。我自己在awd evo主板上操练了一下,没成功

你是哪里没成功?是没拆掉还是没焊上去?

燃烧的垫片 发表于 21-11-5 08:31:04

zsy00100 发表于 2021-11-05 08:06
你是哪里没成功?是没拆掉还是没焊上去?

拆和装都成功了,叠fet失败。分脚总是弄不好,可能是我的焊接技术不行

zsy00100 发表于 21-11-5 15:18:05

燃烧的垫片 发表于 2021-11-05 08:31
拆和装都成功了,叠fet失败。分脚总是弄不好,可能是我的焊接技术不行

好吧,我会很小心的https://app.rcfans.com/public/emotion/face_004.png

zsy00100 发表于 21-11-5 22:34:15

燃烧的垫片 发表于 2021-11-05 08:31
拆和装都成功了,叠fet失败。分脚总是弄不好,可能是我的焊接技术不行


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燃烧的垫片 发表于 21-11-5 22:56:04

zsy00100 发表于 2021-11-05 22:34


佩服!请问fet的针脚需要往下掰吗?叠起来之后上下fet的针脚离得很远

zsy00100 发表于 21-11-5 23:56:28

燃烧的垫片 发表于 2021-11-05 22:56
佩服!请问fet的针脚需要往下掰吗?叠起来之后上下fet的针脚离得很远

我拿小镊子一个一个往下掰直了刚好碰到下面一层,焊锡一刷就粘好了,比想象中的容易多了
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zsy00100 发表于 21-11-5 23:58:31

燃烧的垫片 发表于 2021-11-05 22:56
佩服!请问fet的针脚需要往下掰吗?叠起来之后上下fet的针脚离得很远

盖子肯定盖不上了要钻孔
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Rodrigue 发表于 21-11-6 09:08:35

建议去某鱼找卖四驱车转子的定做一下蚊车用的转子,因为四驱车马达追求大动力都是双线三线一起绕,t数也很少,线性会比较差
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