| Products > Test Equipment |
| Where can I get a 3-phase AC signal generator? |
| << < (3/6) > >> |
| Le_Bassiste:
have a look here: https://www.leybold-shop.com/three-phase-generator-725721.html |
| Martin72:
I think with the last post the question was answered. Although it could be interesting to check if this : --- Quote ---You could get a small VFC with 3 phase output and use 3 stepdown transformers --- End quote --- Wouldn´t be a cheaper solution. Apart from this, 2 decades ago we were in the need for a AC source with three phases and frequencies between 2...4khz, voltages up to 140Vrms. No solution on the market...what to do... We´ve modified a sinewave-generation pcb* in such manner to get the frequencies up to 4khz. And then feeding the three-phase sinewaves into ordinary audioamplifiers, in this case PA amplifiers. Got a huge advantage, outputfilters are not needed. *)3-phase sinewaves generated by a PLD, Eprom, 8-Bit ADCs and U/I conversion/filtering. |
| artag:
It might have been made by Feedback They used to produce a lot of equipment for educational use, and a 3-phase low power system would be suitable for running an ac servo Here's a typical bit of Feedback kit : https://www.ebay.co.uk/itm/185508991896 - they very often used that blue case. And here's a very education-specific piece https://www.ebay.co.uk/itm/154557379115 |
| artag:
--- Quote from: Berni on October 07, 2022, 07:10:13 am ---BLDC motors are actually permanent magnet synchronous 3 phase motors/generators. So just get low RPM high torque brushless motor(like used in RC cars/boats) and spin it with another mother at the desired RPM for the frequency you want. --- End quote --- You could also use a BLDC sensorless driver. These are available at very low cost and used to run drone motors. Some even have open software. |
| bdunham7:
Probably the cheapest and easiest way (other than an expensive dedicated device) to bodge together some moderate-power three-phase is the get 2 FY6900 AWGs and 2 FPA2000- series amplifiers from eBay or Aliexpress. That will give you four channels of arbitrary output and up to 50W/channel, 25Vrms @ 2A. |
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