Brushless (BLDC) Motor/Pump speed controller

Thread Starter

Ford Prefect

Joined Jun 14, 2010
206
Hi guys,
I have ordered one of these pumps via eBay..
https://www.ebay.co.uk/itm/1-2-800L...Circulation-Water-Pump-Tools-100/322946395973
but thinking that 800L/H maybe too fast to cope with what I have planned.
My question is, Is it possible to construct a simple circuit maybe with a potentiometer and transistor like this...
Motor Speed Control.JPG


(or something similar) to regulate the speed of a Brushless Motor/Pump so that it will give a reduced litres per hour to about between 400 and 800 L/H or does it need a PWM speed controller such as this?...
https://www.ebay.co.uk/itm/PWM-DC-6...ew-Switch-Speed-Controller-WST05/302320673539

What are your suggestions to control the speed of this brushless pump and subsequently reduce the litres per hour?
Thanks
 
Last edited:

bertus

Joined Apr 5, 2008
21,588
Hello,

In the old forum software one had to tick a box to be able to post a necropost.
This tickbox now is gone and a necropost is more easy made.
When the necropost adds nothing to the thread or is spam, I will detele the post.
In this case I removed a spammer.

Bertus
 
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