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What is the annular magnetic ring coil above the magnetic core of ATX Power Supply Company's push transformer?
The Great Wall is often used to push the transformer overcurrent detection coil. The above voltage is rectified and filtered to 339 pin 7, and the positive input end of the comparator and the negative input end of pin 6 are generally around 1 0.3v. When the feedback detected positive input terminal voltage is greater than 1. The 3v comparator flips. overcurrent protection
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