The current prototype works only with a 5V supply as the regulators do not work with 13.8 V input. Also, the power supply driving the final stage must be just below 5V. This should be redesigned so that one 13V supply can be used, which possibly drives a higher power amp.
The current prototype works only with a 5V supply as the regulators do not work with 13.8 V input. Also, the power supply driving the final stage must be just below 5V. This should be redesigned so that one 13V supply can be used, which possibly drives a higher power amp.