MCP4728 DAC based 3-phase synthesizerDesigned by Whatnick INC in Australia
What is it? A 3-phase 50/60Hz output main AC simulator with 9v peak-to-peak output. The system is in a feather form factor and has successfully been tested with Teensy 3.2 and ESP32 feather boards....Read More…
A 3-phase 50/60Hz output main AC simulator with 9v peak-to-peak output. The system is in a feather form factor and has successfully been tested with Teensy 3.2 and ESP32 feather boards. Should work with other feather boards capable of High-Speed or at least Fast I2C.
It consists of 4 main subsystems.
While developing the 3-phase energy monitor boards using ATM90E36 and V9203 I was stuck with the lack of easily available 3-phase power supply to easily test them with. I had to travel to hackerspace to test them and ended up blowing up the test load. This synthesizer was born out of the need to have ELV 3-phase supply with controllable frequency and amplitude to test energy monitor ASICs.
This is a simple to use yet feature rich 3-phase synthesizer. It can be used for numerous other purposes including musical synthesis with appropriate power amplification added. The I2C interface to the main DAC allows use of many microprocessors / microcontrollers as hosts since the I2C bus is very common. The is also a unique constant current source built in using an opamp, which can be used to simulate current clamps and other current output type transducers.
NOTE : I have an initial set with some hardware bodges at a purely parts cost to help with next iterations.
All SMD parts come fully assembled. Headers will be supplied separately to allow flexible use with Featherwings. The molex nanofit cable is optional.
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Australia Post: Airmail
This is an untracked airmail letter option only use for low value items which you are in no hurry to receive. May take upto 8weeks, with possibly additional delays due to customs.
Australia Post: Airmail Parcel
Australia Post: Standard Air Parcel (Tracked)
This is a tracked option for shipping. Not any faster than letter, more suited for larger orders upto 500g.
Australia Post: Express Post
Express shipping via EMS with tracking. Please consult me when choosing this option.
DHL: Express Rate (500g)
This is the base rate for Global Shipping with DHL express. Lower rates may be available. Please let me know for a discount code/partial refund if shipping to USA, China etc. where discounted rates may be available.
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