Uploaded July 2022 | Updated September 2026, 1 week ago

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#164 In this video I continue looking at the various amplifier classes, by starting working on the switching amplifiers. First up - the class D audio amplifier. I look at why a switching amplifier would be better than a linear one, and then I start looking at how the class D amplifier turns linear signals into square waves. So I mainly look at how you can get binary and ternary PWM modulation.

Related videos:
Class A amplifier part 1 - youtu.be/GtFnkXar5JU
Class A amplifier part 2 - youtu.be/wdd18pYyFg0
Class B amplifier part 1 - youtu.be/eu54pe0LhpM
Class B amplifier part 2a - youtu.be/oTVJM5BZttw
Class B amplifier part 2b - youtu.be/qLYQAOWTHRE
Class C amplifier part 1 - youtu.be/xPTJmFtaGNc
Class C amplifier part 2 - youtu.be/gYbMpu4NoZo
Class D audio amplifier part 1 - youtu.be/w1Rq1cxfNEk
Class D audio amplifier part 2 - youtu.be/pLXautZaH8c
Class D audio amplifier part 3 - youtu.be/zhpOU6eb2gs
Class D RF amplifier part 1 - youtu.be/idisyToMZ58
Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84M

Further reading:
https://www.ti.com.cn/cn/lit/an/sloa119b/sloa119b.pdf
infineon.com/dgdl/an-1071.pdf?fileId=5546d462533600a40153559538eb0ff1

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