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For help with robot project ONLY. (I've forgotton (read:- erased from memory) more than what I know about the other assignments!) . You may also want to consider posting your question on one of the following newsgroup forums (go to Google, then click groups) : sci.electronics.basics, sci.electronics.design or comp.robotics.misc

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Subject:		Re: Re: MOTOR DRIVER CHIP
Name:		MATT
Date Posted:		May 8, 05 - 10:05 AM
Message:		Thanks for that Rob. I will try what you have advised. From the sound of what your saying I think the chip is probably the cause. I have measured the current drawn from the motors and under no load is 0.20 amps. Also I have looked at you 5v regulator circuit and by my calculations a 1K ohm resistor is required in series with the LED to produce a 5 volt output. This was based on: 12volt (supply) - 2 volts (voltage drop across LED) = 10volts divided by 10mA current 10/10x10-3 = 1000 ohms is this correct? Once again, thanks for your help.
Replies:
Re: Re: Re: MOTOR DRIVER CHIP by Rob · May 8, 05 - 11:36 AM Re: Re: Re: Re: MOTOR DRIVER CHIP by Rob · May 10, 05 - 9:21 PM

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