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I'm trying to understand how to drive a servo that needs 5 V power with a 3.3 V output microcontroller. If I have a 3.3 V PWM signal and a 5 V power source, is there a way that I can use a single N-Channel MOSFET to control the servo's motion?

JYelton
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dimestorecoffee
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  • you just need a voltage level converter from 3.3V to 5V, the MOSFET can be used, but there's no need to use any power components. – jDAQ Jun 13 '20 at 03:48
  • https://electronics.stackexchange.com/questions/275468/can-i-use-the-mosfet-for-5-volt-to-3-3-volt-logic-converter https://electronics.stackexchange.com/questions/622/bi-directional-step-up-and-step-down-3-3v-5-etc – jDAQ Jun 13 '20 at 03:49
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    Does this answer your question? [Can I use the mosfet for 5 volt to 3.3 volt logic converter](https://electronics.stackexchange.com/questions/275468/can-i-use-the-mosfet-for-5-volt-to-3-3-volt-logic-converter) – Tim Williams Aug 15 '23 at 22:11

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You can probably just connect it directly. See this comment by @BruceAbbott:

all modern rc receivers output 3.0~3.3V pulses, so any servo sold today has to work at this voltage. – Bruce Abbott

Spehro Pefhany
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