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Modding a cheap 240v/60hz to 115v/400hz

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syau:
Get a surplus 28V to 115V 400Hz transformer and drive it with 400Hz via power amp may be the best solution.

georges shed:
Thanks for the reply's, yes i should have mentioned its for a flight simulator not an actual aircraft so as long as the instruments work i dont mind how i achieve it. i was hoping for a very low cost solution no more than £50. I bought a cheap 300w inverter off ebay (still waiting for it to arrive) and wondered about the feasability of modding it to 115v 400hz. I thought i may be able to switch out the 60hx occilator for 400 hz or something...

Even if i had a bigger budget of hundreds im still not getthing into the price range of buying even a cheap 115v 400hz inverter, Anything Aircraft related is immediatley 4x as expensive haha

georges shed:

--- Quote from: bdunham7 on June 08, 2020, 09:28:34 pm ---Where are you getting this 240VAC 60Hz?  :)

--- End quote ---

My mistake its 50hz not 60, that would be the output of the standard inverter...

Yansi:
Also make sure you understand that most if not all cheap inverters do NOT produce sinusoidal voltage output. It is fine for the typical loads like bulbs and other power supplies, but may not be enough to run some types of avionics.

Using an old VFD (variable frequency drive) WITH a low pass filter is probably the easiest and most suitable of the all mentioned solutions. The output lowpass filter is a MUST and access to a DCbus- terminal on the inverter is required for proper operation.

Audio power amplifiers will also work with step-up transformers, but I would recommend AGAINST using linear ones. Find a class D one, that will be absolutely fine with driving heavy AC loads for long period of time.

georges shed:
Thankyou very much for the advise!

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