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Topic: DAC (Read 659 times)
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ranganatennakoon
Contributor
Posts: 37
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DAC
«
on:
April 29, 2020, 04:26:07 pm »
can we make
DAC
sine wave inverter?
i think, if we can use
DAC
for making sine wave inverter it is batter than
spwm
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coromonadalix
Super Contributor
Posts: 7014
Country:
Re: DAC
«
Reply #1 on:
April 29, 2020, 05:12:18 pm »
For a pure sine wave
low thd, low jitter, precision ? up to witch frequency ?
You can make sine wave by other means too ?
A cheap way of doing it :
http://www.learningaboutelectronics.com/Articles/Sine-wave-generator-circuit-with-a-555-timer.php
You can make it with some mcu with added filtering
The list goes on and on
«
Last Edit: April 29, 2020, 05:14:01 pm by coromonadalix
»
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Prehistoricman
Regular Contributor
Posts: 216
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Re: DAC
«
Reply #2 on:
April 30, 2020, 12:17:14 am »
SPWM is essentially a class D amplifier. High efficiency. Most DACs (thinking of audio output ICs) would use less efficient class A output drivers.
Which is better completely depends on the application.
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David Hess
Super Contributor
Posts: 17428
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DavidH
Re: DAC
«
Reply #3 on:
April 30, 2020, 03:48:48 am »
You can but efficiency is limited to about 66% because of the linear output stage. A class-D amplifier can be 95% efficient or better.
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