View Single Post
Unread 05/07/2012, 09:42 AM   #19
kruserm
Registered Member
 
Join Date: May 2011
Location: Lincoln, NE
Posts: 70
Quote:
In this context, a normal Arduino (328p) with no other hardware can produce 6 PWM signals, so in effect you have 6 "channels" of control. Assuming your driver of choice is fine with a 5v pwm signal, you need no interface hardware. Assuming there are no strange complications, and the driver's current pull on the 5v channel is low enough, you can probably fit more of the drivers on a given channel than you could possibly want.
DWZM, with using terahz's LM3409 driver do you know if you would just use 1 of the PWM signals to control the 8 drivers using the addressing options of the MCP4726? I may be way off here but I thought you could daisy chain the 8 drivers together and then connect 1 of the 8 LM3409 drivers to the controller and then have the ability to talk to the all drivers through the 1 driver connected to the controller via the address of that driver.


kruserm is offline   Reply With Quote