High Power LED Flasher

ahx66 · Aug 7, 2008

Hi,

Does any person know what type of module is used to for high power flashing, say 300 mA or so? I have read that the 555 chip does not perform well at it's "maximum" of 200 mA. Also (if there is not a high power option) where is the best place to buy 555's?

Thanks!

Lynx_Arc · Aug 7, 2008

You may get by cheaper buying an LED light module from DX or KD with 5 or more modes as many have flashing built into them as mode 4 or 5 etc. After you get a 555 timer and wire up a power transistor and other circuitry to do the job you will find it may cost you the same amount as a premade one.

2xTrinity · Aug 7, 2008

I'd recommend using the 555 to drive the gate of a power mosfet for a "direct drive" option, or use the 555 to toggle the chip-enable pin on a driver, if your LED is regulated.

ahx66 · Aug 7, 2008

What kind of mosfet and where to buy? Are there any instructions on how to do this?

A pre-built flashing module sounds good, but search results with DX and KD aren't yielding anything under that description. Thanks.

High Power LED Flasher

ahx66

Newly Enlightened

Lynx_Arc

Flashaholic

2xTrinity

Flashlight Enthusiast

ahx66

Newly Enlightened

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