Hi, I'm trying to run a motor on software controlled speeds. I've figured out, I can easily achieve this by using a MOSFET and a PWM signal. The motor is quite small. I've figured out that without load on 5V it needs about 120 mA when spun up. My idea is to provide either 9 or 12 V to it and contr…

[image] ardupiz: I've figured out that without load on 5V it needs about 120 mA Every time they start moving, brushed DC motors typically draw up to 10X the free running current. In your case, the startup/stall current could be 1 Ampere or higher at 5V. With a 12V power supply, it will be ove…

Wow! Thanks for the quick reply! Every time they start moving, brushed DC motors typically draw up to 10X the free running current. In your case, the startup/stall current could be 1 Ampere or higher at 5V. With a 12V power supply, it will be over 2 Amperes. The power supply must be able to easily…

[image] ardupiz: I'm not sure, why the IFR520 is sold as Arduino module if it wants up to 20V on the gate The sellers may not know the difference, but if they do, they plan on buyers that don't.

Boost Converter Voltage Drop with MOSFET

Other Hardware General Electronics

Topic		Replies	Views
Logic level motor to use with arduino General Guidance	38	507	December 16, 2025
Driving mosfet with Arduino UNO General Electronics	41	1230	September 20, 2025
Xy-sow d4184 mosfet General Guidance	5	857	November 13, 2025
Voltage fall down when connecting a device in MOSFET IRF520 General Electronics	31	7414	July 19, 2021
I want to design Double Active Bridge bidirectional converter, to control MOSFET I need 18V but arduino only produce 5v General Electronics	16	825	March 16, 2024

Boost Converter Voltage Drop with MOSFET

Related topics