AP3970S switcher equivalent, (ap3968 - ap3970) primary side power switcher.
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* Primary Side Control for Eliminating Opto-coupler and Secondary CV/CC Control Circuitry Built-in NPN Transistor with 700VC.
include adapter for ADSL and auxiliary supplies. The AP3968/69/70/70S operates at pulse frequency modulation (PFM), and .
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