<https://lh3.googleusercontent.com/-wW233qCQhx0/Vtya0PanFII/AAAAAAAAACY/Xb6j1yj2PQk/s1600/in18_driver.jpg> I attached the schematic for the adjustable current regulator I used on my latest project. Each anode has a separate regulator. The PDRV signal sets the driver current and requires no current because it controls the gate on PMOS devices. Current is sensed by the source resistor (R7) which provides negative feedback. The zener diode protects the PMOS gate-source voltage from ESD, transients, noise, etc. The 10meg bleeder resistors protect the PMOS devices from ESD.
-- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/20e0d5eb-2f30-4625-854d-be83c4ce3978%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
