DDS AD9850 output - U channel 100 V, I channel 1 A

Thread Starter

zigler

Joined Jan 2, 2013
1
Hi!
I chose AD9850 for my project (sine generator, with frequency 40 to 60 Hz).
What type of output has this dds? (U or I)

I have to make two different channels:
1) Output1 has tunable (with computer) voltage within the limits of 0 - 100 V (current is not important).
2) Output2 has tunable (with computer) current within the limits of 0 - 1 A (voltage is not important).
(for simulation a secondary circuit of the voltage/current transformer)

I have question, how I can become such parameters at output?
I decided to use dds -> active_lowpass_filter -> digital_potentiometer -> amplifier(e.g. TDA2030) -> transformer (for voltage conversion and electrical isolation). may be needed to shift the voltage with op amp.

Sine wave must be sufficiently clean with precisely controlled from a computer amplitude (deviation within 0.1% are allowed)

What do you think about this?
 
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