In the schematic shown in this page: http://www.pavouk.org/hw/en_atxps.html I wound like to understand the section of the circuit who powers the IC1 TL494.
From what I understand IC1 is powered through D30 by the "first" secondary of T6. What happens in the primary section of this transformers who induces current in the secondary section? Maybe Q12 act as a switch and generate the current in the primary who induce the current in the secondary needed to power IC1.
Someone can explain me how the TL494 is turned on in this circuit?
From what I understand IC1 is powered through D30 by the "first" secondary of T6. What happens in the primary section of this transformers who induces current in the secondary section? Maybe Q12 act as a switch and generate the current in the primary who induce the current in the secondary needed to power IC1.
Someone can explain me how the TL494 is turned on in this circuit?