MEMS stroboscopic drive circuit

Published:2011/7/1 5:39:00 Author:Fiona | Keyword: MEMS stroboscopic drive | From:SeekIC

According tostroboscopic imaging principle,in order to collect the clear images of MEMS devices high-speed movement,this paper selects EL6249C as the drive chip to drive the high brightness laser diode to shine,and uses the narrow pulse signal with the same frequency as the function generator frequency and MEMS exercise frequency,meanwhile,it is used as the control signal for EL6249C,then sets the right external resistance to make EL6249C output appropriate electricity to drive LED to emit the required frequency light. The graph is the author of the design stroboscopic lighting circuit principle diagram. In this circuit, in order to ensure the required supply voltage is stable at 5V, the writer uses the MAX8869, so it can improve the accuracy and stability of the entire circuit.



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