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TMDSSOLARUINVKIT: dual DC50V to +400VDC power supply

Part Number: TMDSSOLARUINVKIT
Other Parts Discussed in Thread: TMS320F28035, TMS320F280039C

Hi Experts,

Good day! Please assist us on the customer's inquiry below.

1. What is the benefit to have a dual DC50V to +400VDC power supply in your TMDSSOLARUINVKIT? Greater efficiency of two transformers T1 and T2 for Flyback Power DC50V to +400VDC or less interference or maybe power dissipation, less heating?

2. What is the purpose of using two transformers T1, T2, and PWM control of power transistors in the Primary Clamped Flyback Power Stage in your TMDSSOLARUINVKIT?

3.  We are trying to reduce the cost of our solar microinverter based on your TMDSSOLARUINVKIT and have a question. Is it enough to use only one transformer for Flyback Power from 50V to 400V?

Thank you so much in advance!

Best regards,

Jonathan