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CCS/TMS320F28335: bridgeless-PFC zero-crossing current spike solv bt soft-start-help with the code in CCS

Debjani Chakraborty
Prodigy 20 points

Part Number: TMS320F28335
Other Parts Discussed in Thread: TIDM-1007, C2000WARE-DIGITALPOWER-SDK

Tool/software: Code Composer Studio

Hello


I am using CCS to run average current loop control for bridgeless boost PFC converter using DSP (F28335). There are spikes at the zero-crossing. Its recommended to use soft -start of MOSFETS (start MOSFET with low duty). Is there a way to implement this in CCS code, start MOSFET with a small duty for few switching cycles at every zero crossing and then let the control take over. Please help with the code.

thanks