A Hand is needed! Battery current control
Jason91383
Posts: 2
Hello, I'm·a student come from Hong Kong. So please forgive my stupid English, but I really needed help.
I'm having a project about BASIC Stamp, and now I have decided to make a Fork Lifted Truck move by command store in BASIC Stamp.
Now the truck has been integrated, but we have a problem, the truck has three engines, but the PCB board with BASIC Stamp that school provide us cannot afford too high current, so we may use combined batteries to make the engines move
Is there any device can help us to control the current output from batteries by BASIC Stamp, the problem is we cant let current flow through PCB.
Thanks for Help also for reading too much word
I'm having a project about BASIC Stamp, and now I have decided to make a Fork Lifted Truck move by command store in BASIC Stamp.
Now the truck has been integrated, but we have a problem, the truck has three engines, but the PCB board with BASIC Stamp that school provide us cannot afford too high current, so we may use combined batteries to make the engines move
Is there any device can help us to control the current output from batteries by BASIC Stamp, the problem is we cant let current flow through PCB.
Thanks for Help also for reading too much word
Comments
I would recommend using a transistor to control a small relay, then use the contacts of the small relay to control a large relay. For a large relay, you might look at car starter selenoids.
Good luck,
Bean
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To control, the BS2 needs a "common ground". This means, you connect all your grounds together at some point.
To control current flow, you need "separate supplies". This means, you run separate 'Plus Voltage' wires.
So, you can have a 9-volt transistor battery whose Plus voltage goes to the BS2 'Vin'. Then, you can have a more robust battery's Plus voltage tied to the motors (through appropriate switching hardware controlled by the BS2).
This keeps the "high-current" part off of the PCB.
Perhaps you should specify the Voltage and current requirements. Something like a VNQ660 Quad IC Driver can supply 6 amps per channel on four channels up to 36V. Some low cost fets can supply 30 amps, other options as well but you need to know the power requirements.
I think you mean motors not engines as in a gas or diesel or stream engine.
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Think Inside the box first and if that doesn't work..
Re-arrange what's inside the box then...
Think outside the BOX!
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