Hi all.
I'm currently finshing a project which uses a PIC 16F628
to control a solenoid. The problem is turning the solenoid
on and off. The solenoid in question is in my son's "paint-
ball-marker". It needs to turn on and off rapidly. The solenoid
has a resistence of about 1.2 Ohms, and uses 9VDC. My
guess is this will draw 7.5 amps. The output is opto-islolated'
but the transistor doesn't seem to supply enough current or
voltage (part # NTE 196 npn transistor).
If I place the leads of the solenoid across the + and - of
the 9VDC, the solenoid pulls in and operates correctly,
but the power source of my regulated 5VDC fails and
causes my PIC to reset (believe this is a problem with
captacitance).
If anyone has any suggestions or ideas I would greatly
appreciate them.
Thanks For Reading.
Gordon
I'm currently finshing a project which uses a PIC 16F628
to control a solenoid. The problem is turning the solenoid
on and off. The solenoid in question is in my son's "paint-
ball-marker". It needs to turn on and off rapidly. The solenoid
has a resistence of about 1.2 Ohms, and uses 9VDC. My
guess is this will draw 7.5 amps. The output is opto-islolated'
but the transistor doesn't seem to supply enough current or
voltage (part # NTE 196 npn transistor).
If I place the leads of the solenoid across the + and - of
the 9VDC, the solenoid pulls in and operates correctly,
but the power source of my regulated 5VDC fails and
causes my PIC to reset (believe this is a problem with
captacitance).
If anyone has any suggestions or ideas I would greatly
appreciate them.
Thanks For Reading.
Gordon