Member level 2
I need for some measurements make 230V vith variable frequency of 50-60Hz. So, I connected audio PA with two TDA1514 in bridge and powerline transformer 230/12V connected in reverse order to amplifier output. But problem is that amplifier get quickly very hot even vithout load and worse when use bigger (some 30VA) transformer. How can I compensate this PA or what I need to do, so that PA don't heating so much. Can anyone help?