Anyone got a schematic diagram for a GM20 actuator drive circuit.
Anyone got a schematic diagram for a GM20 actuator drive circuit.
You want damping for speed or just simple driver?
if you want damping and speed use:
general scanning a102 circuit
http://www.gs-scanners.com/pdfs/manuals/A102_AX200.pdf
if not,and looking for single supply driver with no ringing use a IR740 FET with a fet gate driver chip such as Texas Instruments TPS2811 , remember to put schottkey reverse diodes across the actuator and across the fet
Steve
Just a simple shutter control, nothing fancy.
so to take the ILDA shutter signal and drive the GM20 top open a beam.
I was thinking something like this..
By the way, 1K is pretty low impedance... It would be better to use a higher impedance. A darlington allows you to do that.
I sent a hand drawing to Mike from MechEng3, who had good results with it. He posted a re-drawn version in another posting. Perhaps you can dig for it, or someone will re-post it.
Bill