frankqt
Member level 4
Hi I like to design a LED flash that can pump up to 4As.
I have looked at the existing flash drivers from Exar and similar and there are great ICs for Flash (including 4.5A) but the problem is the control. Their on/off time cannot be as small at 10-20usec. (Usually 100mA or more) I am looking for a solution where I turn on a powerful LED (or LEDs) for 20usec and pump the maximum current. This is for high speed photography.
A reference schematics would be great.
Thx,
F.
I have looked at the existing flash drivers from Exar and similar and there are great ICs for Flash (including 4.5A) but the problem is the control. Their on/off time cannot be as small at 10-20usec. (Usually 100mA or more) I am looking for a solution where I turn on a powerful LED (or LEDs) for 20usec and pump the maximum current. This is for high speed photography.
A reference schematics would be great.
Thx,
F.