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Author Topic: will this circuit work?  (Read 1879 times)

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Offline SounduserTopic starter

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will this circuit work?
« on: June 16, 2015, 12:51:13 pm »
I've got an rgb party light that flashes to music.
It's basically LEDs that are switched on the low side by a microcontroller.
I want to connect it to some rgb led strip.
Will this circuit work?


Thanks.

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Offline PSR B1257

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Re: will this circuit work?
« Reply #1 on: June 16, 2015, 03:35:25 pm »
If the GND-terminals are connected, yes.

The P-channel MOSFET can be replaced by a small signal BJT.
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In theory, there is no difference between theory and practice. But, in practice, there is.
 

Offline SounduserTopic starter

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Re: will this circuit work?
« Reply #2 on: June 16, 2015, 08:14:33 pm »
Okay. Just a straight swap with a pnp transistor. No extra resistors?
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Offline GoneTomorrow

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Re: will this circuit work?
« Reply #3 on: June 17, 2015, 10:44:29 am »
Yep, you already have your base resistor, just emitter to 12v and collector to your MOSFET gate.
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Offline SounduserTopic starter

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Re: will this circuit work?
« Reply #4 on: June 20, 2015, 11:31:23 am »
What value resistor would you use?

Thanks guys.
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