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What is Optimizing UCC28019A for Noise Reduction about?

The document discusses optimizing the UCC28019A controller to avoid audible noise during light load and no load operation. It explains that the UCC28019A has improvements over the UCC28019 such as a softer start-up and response to transients that reduces input current distortion. At no load, the UCC28019A can produce narrow PWM pulses to maintain regulation without noise, but process variations may cause wider pulses that produce audible noise. Adding a small bias current to the current compensation node ca

Author

fabianoaddor

Language

EN