Changing Frequency of AC Power Supply: Circuitry vs Generation

AI Thread Summary
The standard method for changing the frequency of an AC power supply is to ensure the generator operates at the desired frequency. If frequency adjustment is necessary, converting AC to DC and then back to the desired frequency is a common approach. For specific frequency harmonics, ready-made circuits like frequency doublers can be utilized based on power requirements. In commercial applications, Variable Frequency Drives (VFDs) are widely used to control motor speeds and adjust frequency effectively. Overall, selecting the appropriate method depends on the specific application and power needs.
Hank_Rearden
Messages
25
Reaction score
0
Can anyone tell me what the most standard way of changing the frequency of an AC power supply is? Can it be done with circuitry or does the method of generation need to be set at the desired frequency?
 
Engineering news on Phys.org
Hank_Rearden said:
Can anyone tell me what the most standard way of changing the frequency of an AC power supply is? Can it be done with circuitry or does the method of generation need to be set at the desired frequency?
The most common is to ensure that the generator is the right frequency.

If you have to change frequency, a common method is to convert to DC, then back to the desired frequency. If you want merely a harmonic of the original, there are circuits that can do that for you ready made as modules (frequency doublers) depending on the power requirements.
 
Almost every motor (exhaust fans, air handlers, etc.) in a commercial building uses a VFD (Variable frequency drive.) So, id say this is a very common way. http://en.wikipedia.org/wiki/Variable_frequency_drive
 
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
View full post »

Similar threads

How do I properly connect a bench power supply to a pulse generator for testing?
Replies
19
Views
2K
Sizing an Isolation Transformer for a DC Power Supply
Replies
8
Views
2K
Can power supplies/adapters be used to clean up dirty generator power?
2
Replies
61
Views
9K
What does the 'power' vs 'time' graph look like for a 3 phase AC supply?
Replies
13
Views
4K
Power supplied by AC component + DC component = total power?
Replies
6
Views
4K
Induction heater using Bicycle Dynamo Generator @ 24 V 60HZ Supply
Replies
10
Views
2K
Is There Still a Market for Mechanical High Power DC/AC Generators?
Replies
7
Views
2K
Induction Motors: Rotating Magnetic Field & AC Frequency
Replies
5
Views
3K
Key fob only works on battery and not power supply. What?
Replies
33
Views
3K
Query about the time average of an AC power supply
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top