 | | Re: Electrical Things (was: Railroad Dilemma) —Larry Pieniazek
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| | | (...) it on a scope. If we have a PWM voltage with a 50% duty cycle and 10 millisecond period An analog voltmeter will report the average voltage of 4.5, not 5 milliseconds DC 9V and 5 milliseconds DC 0V because it does not have the timescale (...) (26 years ago, 8-Mar-99, to lugnet.trains)
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| | | | | Re: Electrical Things (was: Railroad Dilemma) —Matthew Bates
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| | | | (...) interested. (...) True, I used a voltmeter to generate the data on that page, but I didn't claim anywhere on my page or previous posts that that was what I used to prove it is not PWM. Proof is obtained by opening the controller, getting the (...) (26 years ago, 8-Mar-99, to lugnet.trains)
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| | | | | | Re: Electrical Things (was: Railroad Dilemma) —Larry Pieniazek
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| | | | (...) But (pedant mode on) your wording in the post above does make that implication. ;-) (...) No fair. :-) That's a white box test. Much more fun to drag out a scope. OK, I give. (26 years ago, 9-Mar-99, to lugnet.trains)
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