scanning leds?

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dualsport

Silver - Posts: 983

Joined: September 27, 2005

Location: United States

Posted: July 06, 2007 at 12:39 AM / IP Logged

If you were just looking to flash multiple LEDs in unison rather than in sequential Knight Rider fashion you could add a simple current mirror drive circuit .

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slawson2000

Member - Posts: 47

Joined: March 11, 2007

Location: United States

Posted: July 06, 2007 at 8:03 AM / IP Logged

Maybe I am not being clear. I have two sets of five LEDs, one set on each 629R. Each set flashes in a knight rider (or other) sequence. I want the two sets o lights to be in sequence; so that the 1st LED of set 1 flashes in sync with the 1st LED of set 2, and so on.

BTW, what is a simple current mirror drive circuit?

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slawson2000

Member - Posts: 47

Joined: March 11, 2007

Location: United States

Posted: July 06, 2007 at 4:58 PM / IP Logged

Well, DEI was wrong, you can wire two LEDs in parallel and it will fire (bright enough). So that is the direction I am headed. We'll see it if lasts.

Ever get the idea that you are posting replies to yourself?

Case closed (for now).

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dualsport

Silver - Posts: 983

Joined: September 27, 2005

Location: United States

Posted: July 06, 2007 at 7:36 PM / IP Logged

It's a circuit you can use to drive multiple LEDs from one output with matched brightness.

Current mirror circuit

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slawson2000

Member - Posts: 47

Joined: March 11, 2007

Location: United States

Posted: July 07, 2007 at 12:38 PM / IP Logged

Got it .... Thanks.

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scanning leds?

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