2 added 8 characters in body
source | link

I have two LED strips (IKEA's Ledberg white), each with atheir own 24V power supply and I want to make them dimmable with an Arduino.

I was wondering if it is safe to connect both of them (their negative pins) to a single MOSFET? Or do I need two MOSFETs? I've tried and it works, but I'm not sure if it is OK. If it is, would I need any protection (diode?) to prevent current from flowing from one supply into the other? I'm assuming I wont need that because the LEDs would do that.

Also, assuming each strip consumes 44mA at 24V, how much current and voltage would pass trough the MOSFET?

I have two LED strips (IKEA's Ledberg white), each with a 24V power supply and I want to make them dimmable with an Arduino.

I was wondering if it is safe to connect both of them (their negative pins) to a single MOSFET? Or do I need two MOSFETs? I've tried and it works, but I'm not sure if it is OK. If it is, would I need any protection (diode?) to prevent current from flowing from one supply into the other? I'm assuming I wont need that because the LEDs would do that.

Also, assuming each strip consumes 44mA at 24V, how much current and voltage would pass trough the MOSFET?

I have two LED strips (IKEA's Ledberg white), each with their own 24V power supply and I want to make them dimmable with an Arduino.

I was wondering if it is safe to connect both of them (their negative pins) to a single MOSFET? Or do I need two MOSFETs? I've tried and it works, but I'm not sure if it is OK. If it is, would I need any protection (diode?) to prevent current from flowing from one supply into the other? I'm assuming I wont need that because the LEDs would do that.

Also, assuming each strip consumes 44mA at 24V, how much current and voltage would pass trough the MOSFET?

1
source | link

Connecting two LED stripts with individual power sources to one MOSFET

I have two LED strips (IKEA's Ledberg white), each with a 24V power supply and I want to make them dimmable with an Arduino.

I was wondering if it is safe to connect both of them (their negative pins) to a single MOSFET? Or do I need two MOSFETs? I've tried and it works, but I'm not sure if it is OK. If it is, would I need any protection (diode?) to prevent current from flowing from one supply into the other? I'm assuming I wont need that because the LEDs would do that.

Also, assuming each strip consumes 44mA at 24V, how much current and voltage would pass trough the MOSFET?