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Help required for Fan Dimmer-Important

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mohdfasieh

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Hello ,

I require your little favor for my Fan Dimmer Circuitry .

Well the circuitry consists of Transistor ( PN BT134 600D 0701) , Diode (C 502 ) , Capacitor ( 2E104K ) , Resistor color code ( Brown,Red, Orange,Golden ) & Potentiometer .

Now the problem i am facing is that Fan dimmer works fine for normal electricity . But whenever i operate that on UPS or on generator, it burns .

Please suggest me what should i do to make this circuit more effective in terms of it's operation in UPS & in generator . Your help in this regard would be highly appreciated.

Thank you !

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Picture of Circuitry
 

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UPS and generator both are connected only to this particular regulator or other devices are also connected to them


If the device works properly in mains then there is no problem in circuitory

Check the power op rating of the Generator and UPS and also whether it is clearly AC or DC
 

Fasieh,

BT134 is a triac.

The dimmer does not work on UPSs because most of these in use, supply square wave.

Zeb
 

Pal the op of an inverter is not exactly a square wave if I am wrong post schematic

There will an LC resonant ckt that produces a Sinusoid after the square wave is produced
 

What should i do now to improve my circuitry ?
 
Last edited:

You cannot do much to improve the circuit. The existing fan dimmers in the market are designed to minimize cost and space. Similarly the UPSs are also designed to minimize costs which is the reason square wave o/p is used. It is difficult to change any or both without expensive modifications in the circuitry.

Zeb59

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You can consider going back to the auto-transformer type fan regulators of the past. These will function both on square and sine wave.

Zeb
 

Hello ,

I require your little favor for my Fan Dimmer Circuitry .

Well the circuitry consists of Transistor ( PN BT134 600D 0701) , Diode (C 502 ) , Capacitor ( 2E104K ) , Resistor color code ( Brown,Red, Orange,Golden ) & Potentiometer .

Now the problem i am facing is that Fan dimmer works fine for normal electricity . But whenever i operate that on UPS or on generator, it burns .

Please suggest me what should i do to make this circuit more effective in terms of it's operation in UPS & in generator . Your help in this regard would be highly appreciated.

Thank you !
Click to expand...
Hi
Confusing thread !
Two questions if you need help !
1- what kind of fan ?
2- what kind of specifications ( for UPS and controller and fan / operating voltage and current /DC/AC )

Best Wishes
Goldsmith
 

1) Fan works on 220 V Ac supply , normal fan that are used in our households .




goldsmith said:
Hi
Confusing thread !
Two questions if you need help !
1- what kind of fan ?
2- what kind of specifications ( for UPS and controller and fan / operating voltage and current /DC/AC )

Best Wishes
Goldsmith
Click to expand...
 

An ac capacitor of 1.5uF-2.2uF/400V across fan and dimmer(which are in series) may solve the problem.
It is connected to live wire after the fan switch and ground.
**broken link removed**
 
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