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Help understanding when to use what.... — Parallax Forums

Help understanding when to use what....

studysessionstudysession Posts: 66
edited 2006-08-12 18:22 in Robotics
Hi -

I have a few questions I am hoping everyone can help me with. I have been searching the forums here & google about a lot of what is discussed here. But still do not fully understand --

·1 > I am new to the basic stamp. I am going through the What is a Microchannel book and understand what the transisters/capacitors etc... are used for but not sure when and which one.

I need it explained in basic terms. How will I know what size capacitor or transistor to use? What is to big vice to small for XYZ application?

·2 > These H-Bridges for controlling motors. Same thing - How do I know what size of what to use? I want to build my own H-Bridge to get more knowledgable on what is going on. For me - I want to make one for DC motors and Stepper motors. I have many of each.

As for DC motors - I would want to use a 19t double wound motor from one of my RC cars.

As for stepper motors - I have a few. I will start with
MANUFACTURER: ASTROSYN
DIMENSION / DESCRIPTION: SHAFT DIA.= .250", 2.25 VOLT, 1.5 OHM, 1.8 DEGREE 1.5 AMP, 8 WIRE
I will use the stepper motors for a CNC project. I have 3 stepper motors and will add a fourth later.
---- PS - Please forgive the repeated question. I know the h-bridge questions get asked over and over again here. I have been searching the forum & google, but still do not fully understand. Thanks

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