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In Reply to: RE: No semantic aspect to it. Class D incorporates digital technigues... posted by AbeCollins on May 25, 2018 at 15:55:03:
"Note that the amp has a clock that produces a digital square wave reference for the carrier frequency"
The "clock", or at least the closest thing to what one might consider to be a clock in the EETimes example, is a triangle and isn't really being used as a clock. The triangle reference isn't being used to trigger a logic machine.
It's continuously variable slope allows a continuously variable on time.
I believe you've incorrectly characterized the carrier reference as being "square" when it would be more accurately described as "rectangle" with continuously variable on time.
"Also note that the output switcher has distinct On/Off (digital) states."
Not on/off in the sense of representing data in the form of a one or zero such as in a binary digital system. PWM systems encode the information in the pulse width. The control and reference signal can be done completely in analog and the number of possible pulse widths possible can effectively be infinite.
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Follow Ups
- RE: No semantic aspect to it. Class D incorporates digital technigues... - Ugly 05/26/1817:39:59 05/26/18 (7)
- RE: No semantic aspect to it. Class D incorporates digital technigues... - AbeCollins 23:33:45 05/26/18 (6)
- RE: No semantic aspect to it. Class D incorporates digital technigues... - DrChaos 16:07:23 06/2/18 (0)
- Some Class D amps are purely analog and some are (almost) purely digital - Dave_K 05:15:47 05/30/18 (1)
- RE: Some Class D amps are purely analog and some are (almost) purely digital - AbeCollins 08:59:34 05/30/18 (0)
- RE: No semantic aspect to it. Class D incorporates digital technigues... - Ugly 04:51:22 05/27/18 (2)
- RE: No semantic aspect to it. Class D incorporates digital technigues... - AbeCollins 07:36:02 05/27/18 (1)
- RE: No semantic aspect to it. Class D incorporates digital technigues... - Ugly 10:50:12 05/27/18 (0)
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