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Havn't done any work using Mosfets but I understand they are superior over transistors.
Would two P channel and two N channel Mosfets work more efficiently than the four transistors in this amp??
So then the mosfets would be a better choice over the transistors being that the mosfets won't get warm??
schematic is pretty much the same maybe I will make changes? for a more efficient amp in that the mosfet amp won't generate any heat. HEAT is in a sense wasted energy.
This square-wave H-bridge circuit is not a linear amplifier. The Mosfets switch with much more efficiency than bipolar transistors.
What do you mean Nigel, both SMPSUs and LOPTS both benefit from using Mosfets over bipolars, why would you say that?
In what devices Nigel? You obviously have specific devices you have in mind when you think of Mosfets in a switching power application which obviously don't speak for all power mosfets in a power switching situation. Mosfets are used extensively in switched mode power supplies for motors and for UPS supplies. You seem to be talking TV sets when that is not the only place where such devices are used. In the case of a piezoelectric driver where distortion isn't even considered in general as any harmonics created can't propagate because of attenuation mosfet drivers can be extremely efficient.