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is TCA032DP1,the supply voltage for my case is +6V
and the data sheet says that the minimum is 5V or +-2.5V,and the output of the AO has 3V because of the voltage divisor
with a 10ohm resistor instead of the motor, and a power resistor to check the current at the output,the voltage is 0.2,so...
i put a power resistor 0.5ohm at the output of the AO to try check the current here
it is difficult to see because the waves are distorsionated about the inductance of the motor,but more or less i saw a different of voltage between the output and the wire parallel of 0.4V,with a power resistor...
it didn´t work,when i set the diodes as you said the current got even high
if the data sheet of the motor says that the maximum current no load is 0.3A is there a problem is that current for my case is 0.4A?? even if the data sheet says too that at maximum efficiency that current can be 1A...
ah ok,i understand what you mean, i will try it and i will say you the results,but i think that the diodes maybe can get so hot about the current which will be across them
i have 2 diodes 1n4004,are them correct to use in this case?
but maybe it could reduce the voltage at the output? and i don´t want it .
you refered this:
AO------(-2*DIODE+)-----------motor----Rpower-------
__________________ --------(+diode-)-----------------
hello,i have been a time which i couldn´t do nothing about this topic
finally i did the next:
https://imageshack.us/photo/my-images/703/darbueno.jpg/
instead of the 555 i will have compactrio if you remember,and i got the enxt results:
for duty cycle 50% the voltage across the motor is 1.5V...
ok,i have check the measure at the input of the AO and i have 1.5V with duty cycle 50%,and 3V with duty cycle 100%, so with the multimeter i am measuring avegare or effectuve voltage?
i think that the formulas are: Vaverage=Vmax*(duty cycle) ,is it correct? and what about the Veffective? which...
hello,i am trying to measure a square wave(pwm) with amplitude 3V, so when i try to measure it with a multimeter across my motor,should i watch the next:
Vmultimeter=3*sqrt(duty cyle)
is it correct? because sometimes i am watching more than 3V on my multimeter across the motor about 3.7V but i...
ok,it work well with a Rb=2.2K and i will have aprx 1ma at the base ,so it is perfect
finally i use 5V of supply voltage,so my max duty cyle is 60% to have 3V across my motor
thanks for your help
---------- Post added at 18:41 ---------- Previous post was at 17:41 ----------
and i red this...
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