UCC28070: EXCEL DESIGN TOOL

Ilia Hadzhiev

Part Number: UCC28070

Hello,

Can you tell me what line 77 ( Voltage calculation for selecting multiplier resistor) V1 from the design tool is for.
There are two lines with the same description for V1 and V2 ( V2 should be the voltage across Rimo) .

Thanks

over 5 years ago

0 John Griffin1 over 5 years ago

TI__Mastermind 34465 points

Hello Ilia,

V1 on C77 is the rms input voltage at low line for the design.
V1 and V2 (C78) are used to calculate the value of the RIMO resistor.
Page 22 of the data sheet explains the procedure in this calculation.

Regards

John

0 Ilia Hadzhiev over 5 years ago in reply to John Griffin1

Prodigy 230 points

Thank you John

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UCC28070: EXCEL DESIGN TOOL