piclist 2002\12\09\131538a >
Thread: 2-tran boost circuit; 5v -> 13v
picon face BY : Spehro Pefhany email (remove spam text)

At 02:57 PM 10/2/02 -0700, you wrote:
>There's this interesting circuit for driving white LEDs from 1.5V here:
>I've prototyped the circuit with various transformers, and it works
>quite nicely, generating pulse better than 20V with "dead" batteries
>as supply.  It claims to work down to .35V input (I don't see how this
>is possible, given Vbe, but...)

No problem, just don't expect it to *start* at 350mV..

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
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Subject (change) 2-tran boost circuit; 5v -> 13v

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