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Can I simplify the dual-mode circuit by using a manual switch between FBUS and MBUS modes? How to connect the switch?

April 26, 2017circuit Connect dual-mode fbus manual modes simplify Switch

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Can I simplify the dual-mode circuit by using a manual switch between FBUS and MBUS modes? How to connect the switch?

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Yes you can. I personally prefer the soft-switch solution, because it is not actually very complicated. To use a manual switch, just remove FET Q1 and resistor R2 and solder the switch to the S and D pins of the former Q1.