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Without the buck-boost converter, how would you power the ISOMON, smart switches and interlock? #69

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TaijiSugiyama1 opened this issue Jan 9, 2025 · 3 comments
Open

Without the buck-boost converter, how would you power the ISOMON, smart switches and interlock? #69

TaijiSugiyama1 opened this issue Jan 9, 2025 · 3 comments

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@TaijiSugiyama1
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Greetings,
The production variant(which I believe is the version the foxbms team uses) does not have the buck-boost converter. Which provide the Vbb_12V to the ISOMON, smart switches and the interlock. Does this mean in the production variant, all these features does not work?
@TaijiSugiyama1 TaijiSugiyama1 closed this as completed Jan 9, 2025
@foxBMS
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foxBMS commented Jan 9, 2025

Dear @TaijiSugiyama1,

Thank you for your feedback.

The variant named production is the configuration for standard applications and is fully functional. The mentioned buck-boost-converter is designed for special use cases where the supply voltage is not compatible with external components (e.g., 24V bordnet and 12V contactors) and not used in the production variant. Therefore, it is bypassed with R7115.

Best regards,
The foxBMS Team

@TaijiSugiyama1
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Yes, I just saw that there was a 0ohm Resistor to bypass the converter. Thank you for your swift reply

@TaijiSugiyama1 TaijiSugiyama1 reopened this Jan 10, 2025
@TaijiSugiyama1
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The SmartHigh-Side Power Switch TPS2H000BQPWPRQ1 is also missing in the production version. Does that mean the interlock functionality does not work?
Screenshot 2025-01-10 133054

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@foxBMS @TaijiSugiyama1
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