Control AC Fan Motor with DAQ: AC Voltage Driver?

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SUMMARY

The discussion centers on controlling an AC fan motor using a Data Acquisition (DAQ) system to vary the amplitude of a 110V AC sine signal. Users suggest utilizing a variac, specifically a Staco Variable Transformer, for effective speed control. Additionally, a triac regulator is proposed as a viable alternative for applications that do not demand high power. These methods provide practical solutions for managing fan motor speed through voltage modulation.

PREREQUISITES
  • Understanding of AC voltage drivers
  • Familiarity with Data Acquisition (DAQ) systems
  • Knowledge of variable transformers, specifically Staco Variable Transformers
  • Basic principles of triac regulators
NEXT STEPS
  • Research the operation and application of Staco Variable Transformers
  • Learn about triac regulators and their use in AC motor control
  • Explore the configuration and programming of Data Acquisition (DAQ) systems for signal modulation
  • Investigate safety protocols for working with high voltage AC systems
USEFUL FOR

Electrical engineers, control system developers, and anyone involved in AC motor speed regulation will benefit from this discussion.

adrianstraka
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AC voltage driver??

Do AC voltage drivers exist?
I want to develop a control system using a DAQ to vary the amplitude of a 110V AC sine signal being fed into a 110V AC fan motor, in order to control its speed. Does anyone have any suggestions

The method I was going in is to complicated, it involves generating a variable +/- 10v sine signal from the DAQ feeding it into a power amplifier and then feeding the amplified voltage to the motor.

I appreciate all help and suggestions.

Thanks
 
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With the currents you need to run a fan, I would suggest using a http://www.variac.com/staco_Variable_Transformer_Map.htm" .

Welcome to PF.
 
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A triac regulator might work too if you don't require much power.
 

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