Old 06-10-2014, 07:45 PM #17
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Default Re: Simple Linear MOSFET Dimming Circuit + PWM

It could be important to anybody researching and trying to learn, so it is a relative post, not a necro-post. quit playing moderator.
Good effort Illuminum. Keep it up.


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Old 06-20-2014, 05:16 AM #18
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Default Re: Simple Linear MOSFET Dimming Circuit + PWM

The math works out in both power calculation equations -- which are the same thing, and must be -- as ~435mW, give or take some rounding error.

I'm curious how you arrived at 326mW though.
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Old 06-21-2014, 09:36 AM #19
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Default Re: Simple Linear MOSFET Dimming Circuit + PWM

Necro 'ing is fine if it adds to the original discussion.

It's when posters put "Thats sooo c00l" and things like that, that it gets deleted.
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Old 10-28-2014, 03:48 PM #20
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Default Re: Simple Linear MOSFET Dimming Circuit + PWM

Sorry for this dumb question:
what if a power a 100mW diode led laser, using the 750mW proposed circuit?

thank you
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Old 10-29-2014, 09:50 PM #21
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Default Re: Simple Linear MOSFET Dimming Circuit + PWM

Quote:
Originally Posted by hozone View Post
Sorry for this dumb question:
what if a power a 100mW diode led laser, using the 750mW proposed circuit?

thank you
Your diode will pop. That's way too much current
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Old 10-29-2014, 09:57 PM #22
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Default Re: Simple Linear MOSFET Dimming Circuit + PWM

Ok, thank you!
So my diode will "suck" all the current i give him
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Old 04-08-2017, 10:04 PM #23
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Default Re: Simple Linear MOSFET Dimming Circuit + PWM

Hi,
my english is not so good and i am an electronic nooby so i want to ask if someone help me to change the circuit so that i can use it with the following parts:

9V power supply

Diode:
-Max Current 1400mA (so drive with 1300mA)
-Voltage drop at nominal I 4,45V
-Nominal power Output 1000mQ

I hope u can help me
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Old 04-08-2017, 11:04 PM #24
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Default Re: Simple Linear MOSFET Dimming Circuit + PWM

Quote:
Originally Posted by Grumbl View Post
Hi,
my english is not so good and i am an electronic nooby so i want to ask if someone help me to change the circuit so that i can use it with the following parts:

9V power supply

Diode:
-Max Current 1400mA (so drive with 1300mA)
-Voltage drop at nominal I 4,45V
-Nominal power Output 1000mQ

I hope u can help me
Are you aware that this post is over 2 years old?
Perhaps if you introduce yourself in the Welcome
section you would get more responses.

Jerry
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