dc motor power-op-amp speed controller
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What opamp are you using?
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Friend what do i need to buy for a electricla motor of 1 phace,can work in 2 speeds, low speeds and a high speed? the electric motor model is 189D1753P008 it is a motor from automatic washing machine (it is out of the automatic washing) thx for help me
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@adrifromhh he said it in the end of the video DOH
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hmm does the resistor not create a voltage drop so less voltage gets to the motor? how does that help speed it up? cheers for video too.
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@ikb01 I imagine the pic and ADC are used to better control the range of voltage to the op amp and scale the potentiometer more precisely to the input of the opamp. Just guessing though.
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Nice Stick!
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Just in a minute I can think of all the reasons for having pic in line. It could monitor various types of feed back, limit switches, temp readings, etc., and make decisions. Most of the stuff one builds when beginning to understand circuits won't have a reason for certain aspects, or at least won't have requirement, there is a reason, learning.
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analouge pot is converted to digital only to be converted back to analouge?
why
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Thank you very much. Your explanations are great.
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is there a schematic for the circuit ?
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why do you need the pic? isnt this much too complicated? Why not directly sending the poti voltage to the opamp?
adrifromhh 2 years ago 12
pwm is not outputting a higher and higher voltage to the motor. voltage (and current) is delivered in pulses.
lazzer408 3 years ago 8