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DC-DC adjustable boost module based on MAX1771

Overview

Since VFDs require multiple high-voltage drive circuits with different voltages, debugging is quite complex. And DC power supplies that can provide high voltages are expensive. So, I had a sudden inspiration to create an adjustable high-voltage drive board to facilitate debugging in areas requiring high voltage (later I realized that using a 220V autotransformer and rectification would be more convenient). Compared to some fixed-voltage boost modules, this module's efficiency isn't high, and it requires a 12V power supply for output voltages above 100V. However, this module can be flexibly debugged and embedded into projects without the need to design separate test and final circuit boards.

Design Files

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Update:2026-03-25 23:41:50

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