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"Class C" line harmonic distortion

Question asked by Dave Love on Aug 2, 2018
Latest reply on Aug 9, 2018 by Tomas Vaverka

TEA1716, certain IC production lots have jump instability between 125KHz fixed frequency operational state, and normal fixed Ton state with valley skipping.

 

This is causing current spike near zero crossing, which is causing Class C line harmonics failure.

 

How to fix this instability?

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