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0407 - 焊武帝
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0407 - 焊武帝
2023-04-07
| 每天写一点
做了个小 PCB 板，验证了 3.3v 控制 12v 的开关电路，配合测温，可以实现低温加热、高温停止加热，将温度控制在一个较窄的幅度内。
不过，由于加热时的电流较大，使得板子的发热比较大。尤其是 12v 转 3.3v 的 LDO 性能损耗大，得考虑新 DCDC 方案。
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