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Forum Index : Electronics : how to calculate core loss
| Author | Message | ||||
| rustyrotors Newbie  Joined: 07/01/2023 Location: United StatesPosts: 36 |
Could someone be kind enough to explain how to calculate core loss of a choke in an inverter application? I am getting a bit confused trying to figure it out. 24V inverter the choke is a stack of four 250125 Sendust cores with 4 turns Up to 3000W load The data sheet is here: https://datasheets.micrometals.com/MS-250125-2-DataSheet.pdf |
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| Arthur_Dent Newbie Joined: 18/07/2023 Location: United KingdomPosts: 5 |
Hi You are very fortunate to be looking at a core from Micrometals. They have fantastic design tools, e.g.: https://www.micrometals.com/design-and-applications/design-tools/inductor-analyzer/ Using this tool, you can figure out the loss, and more importantly the temperature rise of your proposed core. You will need to know some details of your operating mode: topology, frequency, voltage, current, wire characteristics, etc, etc. Hope this helps. |
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| rustyrotors Newbie Joined: 07/01/2023 Location: United StatesPosts: 36 |
edit.. I was using this guide, specifically method 1, example 3, where there is only AC current, no DC: https://www.mag-inc.com/design/design-guides/powder-core-loss-calculation it just occurred to me my numbers may be off bc i was using transformer primary peak-peak voltage to find current instead of peak-peak voltage drop across the choke at 50kHz. which would make results more reasonable. Edited 2023-09-12 13:06 by rustyrotors |
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