张小哥

Thermostatic harmonica heating plate

Overview

The constant temperature heating function is realized through the thermistor, delay comparator circuit and mos. The heating power of 5v power supply is about 7-8w, and the heating will automatically stop when it reaches about 60 degrees. When
using typec or other plugs for power supply,
you can use silicone glue to seal the components to improve safety (actually it is not necessary, even if there is a short circuit with a regular charger, nothing will happen).
The best thickness for the board is 1.0mm, which can be put down just right typec port, if you don’t use typec interface, 0.8mm is also available, which is more convenient to cut.

Design Files

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Update:2025-06-23 13:00:20

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