oran.outan
Member
Hi
from a long time I am using that schematic : http://adam-meyer.com/arduino/N-Channel_MOSFET
using a RFP50N06 instead of the RFP30N06 (which is mostly obsolete).
I made several set-up with Teensy3.2 or LC with that circuit and work as it should for driving DC motors or others DC stuff.
Lately I want to control (12v) solenoids using a Teensy4 and I get a big voltage drop: voltage at the solenoid wire where +/- 3v. If I'm not attaching the solenoid the voltage rise to the 12v.
if I mount a DC motor instead, the motor turns correctly and I measure well +/- 12v.
What made the use of the solenoid wrong!
What made me really confused is when I plug the solenoid on an old set-up running from several years with that same mosfet circuit and a LC, it work ! the solenoid is 'moving'...
I see that LC and T.4 have different PWM frequencies. Could it be related to my issue ?
As the mosfet assembly was just soldering, I suspected my circuit and plug an Arduino micro. it worked straight away.
datasheet says for 50N06 : Gate to Source Threshold Voltage :: Min : 2v / Max 4v
Is the teensy4 3.3v too 'low' for that Mosfet ?
If yes ! do you have any N-channel replacement suggestion ! (thanks...)
I would like to keep the T.4 as I need usbMidi and almost 12PWM... seems easier to change the mosfet !
During my tests the teensy was powered from the Usb cable plug on my computer... All the set-up I have made before where external powered, I mean the teensy is not powered from the Usb plug but from an external 5v. Does that could change something ?
thanks for your feedback !
best
0-0
from a long time I am using that schematic : http://adam-meyer.com/arduino/N-Channel_MOSFET
using a RFP50N06 instead of the RFP30N06 (which is mostly obsolete).
I made several set-up with Teensy3.2 or LC with that circuit and work as it should for driving DC motors or others DC stuff.
Lately I want to control (12v) solenoids using a Teensy4 and I get a big voltage drop: voltage at the solenoid wire where +/- 3v. If I'm not attaching the solenoid the voltage rise to the 12v.
if I mount a DC motor instead, the motor turns correctly and I measure well +/- 12v.
What made the use of the solenoid wrong!
What made me really confused is when I plug the solenoid on an old set-up running from several years with that same mosfet circuit and a LC, it work ! the solenoid is 'moving'...
I see that LC and T.4 have different PWM frequencies. Could it be related to my issue ?
As the mosfet assembly was just soldering, I suspected my circuit and plug an Arduino micro. it worked straight away.
datasheet says for 50N06 : Gate to Source Threshold Voltage :: Min : 2v / Max 4v
Is the teensy4 3.3v too 'low' for that Mosfet ?
If yes ! do you have any N-channel replacement suggestion ! (thanks...)
I would like to keep the T.4 as I need usbMidi and almost 12PWM... seems easier to change the mosfet !
During my tests the teensy was powered from the Usb cable plug on my computer... All the set-up I have made before where external powered, I mean the teensy is not powered from the Usb plug but from an external 5v. Does that could change something ?
thanks for your feedback !
best
0-0
Last edited: