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发表于 2019-5-16 13:23:28
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这估计是楼主担心的原因吧!!!
I ordered my coils at jlcpcb. They rejected the design because it failed the audit. Technically the design is perfectly within spec, however it is somewhat relatable: You're requesting 33m of thin parallel wire that cannot have a single short or open connection. Eventually I was able to convince them to make the board under the condition that I will not complain about the quality afterwards. Also, they did not make a e-test. However, checking the boards yourself is pretty easy: Just compare the resistance and inductance between the boards. If the resistance is ca 180 Ohm, there is no open circuit. If the inductance is very low compared to other boards, the coil has a short winding and is unusable. From the 70 coils (10 per design revision) I bought so far, only one had a short. |
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