Mihaela Galbinasu
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Description
Speed Control TDA1085 Update
Speed control for universal motors
For parts, see the BOM.
Attention: The entire circuit is not galvanically isolated from the mains! The corresponding VDE safety regulations must be observed. I assume no liability or responsibility for any resulting property or personal injury!
Schematic and Layout
http://zisoft.de/elektronik/drehzahlregelung
Dec 26,2017
18,521 views
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Speed Control TDA1085 Update
2 Layers PCB 46.35 x 97.77 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen
18521
32
29
6.18 (11)
Published: Dec 26,2017
Download Gerber file 780
BOM(Bill of materials)
PCBWay Donate 10% cost To Author
Only PCB
PCB+Assembly
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
Under the
Attribution-ShareAlike (CC BY-SA)
License.
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Speed Control TDA1085 Update
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Hi, this assembly, theoretically, should also work at 120V. The assembly cannot work if the motors do not have a tachogenerator. Here is an example https://www.youtube.com/watch?v=UFvq0tJieds&t=1s PCB comes without components
thanks dude and do you know where I can find one like what I am looking for? I mean for routers, saws, belt sanders, and in general for large power tools.
of high amperage
Possible causes: 1. Motor or power supply wires shorted. 2. Triac of dubious quality. I recommend BT138. 3. Poor quality TDA1085. A good TDA1085 has a measured resistance between pins 8 and 9 with values between 60 and 80 Kohm
Oh wait; Is this works on 250V AC? Because I'm not in Russia(I don't know where you really; but i think so) ; there use 220v 50Hz and here in Sri Lanka there use 230v~250 60Hz! If so how can I make this to work in here! If compatible, what cause this not to work because it blown my 6th TRIAC(by splitting it into 2 parts) I also removed other connections to board from the TRIAC before testing!
And also I'm using TDA1085C; not 1085! is that also a problem? Plz reply soon!
It's good, all the pieces are ok
Yes
Thanks. You are an awesome person. Thanks a lot for helping me. I will ask you if any error occurred!
A picture of the assembled circuit can be found here: https://zisoft.de/elektronik/drehzahlregelung I gave up doing this circuit because it produced a lot of heat, A variant that does not produce heat can be found here: https://www.pcbway.com/project/shareproject/Universal_motor_speed_controller_with_acceleration_control.html External potentiometer value is 100Kohm
OK. So how can I enable that soft-start option from pin 6 of the IC; Because I'm really gonna to use it on my washing machine!
In order to make the start work on the ramp, it is necessary to uncouple pin 6 from the ground. See this schema: https://drive.google.com/file/d/1Y995vRf_tcXAadh9iGNA7s0YCFYgXTcN/view?usp=sharing
I think you can understand how the editing can be done in this video: https://www.youtube.com/watch?v=LLZUng5uKJI&t=5s
Are you sure that this will work with BTA24 TRIAC?
C3, C6 minimum 35V. R18, R19 are 0.1 ohm 5W resistors. These resistors represent a shunt, for measuring the current on the triac.
Yes.
Thanks! And also I want to know what is the difference between this and other 2 controllers?