alisarhangpour
New Member
Hello everybody,
I need deep info on Pulse Width Modulation.Specially those used in inverters.
OK, A sine wave is compared with a sawtooth wave, switching times
are decide so. But I see that some inverters use an EPROM which
keeps the switching schem (I guess so).Am I right?
If yes, how can we control the output magnitude? By ma (Modulation index)
But, With a fixed timing schem in EPROM how can we change ma?
there must be a linear relation betwin ma and switching times.
Any website?book?paper?
Thank you in advance.
I need deep info on Pulse Width Modulation.Specially those used in inverters.
OK, A sine wave is compared with a sawtooth wave, switching times
are decide so. But I see that some inverters use an EPROM which
keeps the switching schem (I guess so).Am I right?
If yes, how can we control the output magnitude? By ma (Modulation index)
But, With a fixed timing schem in EPROM how can we change ma?
there must be a linear relation betwin ma and switching times.
Any website?book?paper?
Thank you in advance.