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如题
Hi
电阻或可以，电池铁圈用恒压驱动。
主要要保证电磁线圈的稳定，电磁线圈工作过程中，有温升导致线圈电阻变化。如果用恒压驱动的话，磁场不稳定。这种可以用LED驱动芯片来做吗？线圈导致的大电感咋处理呀
