PCB Heaven

General Category => General Discussion => Topic started by: Nocs on April 03, 2017, 19:35:25 PM

Title: Which DC controller from pcbheaven projects should i choose ?
Post by: Nocs on April 03, 2017, 19:35:25 PM
Hello Giorgos (tha grapso sta agglika kai ego opos oloi)
First of all congruts for your perfect website and projects and help you provide.

I am new to electronics after a long time of inactivity on them and making again some basic steps to refresh and make it again a hobby as i was having it from my earlier age.

I am trying to make a dc motor controller for a classic dc motor that i have from a frappe machine ^.^ classic greek, so i search around the net for the best solution.
The motor is rated from around 3 - 12 volts as i tested so i would like to give it 12 and control it with potensiometer.
http://www.pcbheaven.com/circuitpages/Simple_Linear_Fan_Controller/
http://www.pcbheaven.com/circuitpages/PWM_Fan_controller_using_a_555/
http://www.pcbheaven.com/circuitpages/High_Frequency_PWM_Fan_Controller/

Which should i choose to make it work at least with a potensiometer and later on i will try to find a way to make it with a dpdt switch to change the rotation leftward or rightward as i wanted to.

Thank you in advance Giorgos and ofcourse congruts for your nice and helpfull site. Like ^.^

Title: Re: Which DC controller from pcbheaven projects should i choose ?
Post by: kam on April 07, 2017, 11:20:49 AM
Hello Nocs,

It largely depends on the current of the motor. The linear controller is simple to make but may suffer from overheating if the current is high. Also, it does not have a good torque at low speeds. So I always suggest you go PWM, more specifically the High Frequency PWM Fan Controller
Title: Re: Which DC controller from pcbheaven projects should i choose ?
Post by: Nocs on April 08, 2017, 00:31:56 AM
Thank you for the response Giorgos  :) i am on my way to control my dc motors

Can any of your circuits control other types of motors such as hard drive motor with 3 pins or 4 pins, or bdlc motors abc connection style or does this motors requires anything else to make them spin with a potentiometer as a speed controller ?

Title: Re: Which DC controller from pcbheaven projects should i choose ?
Post by: kam on May 07, 2017, 10:34:20 AM
hard disc drives are totally different and cannot be controlled by these circuits. Sorry.
Title: Re: Which DC controller from pcbheaven projects should i choose ?
Post by: Nocs on May 08, 2017, 08:03:53 AM
No problem Giorgos and thanks for the reply.