Hello mga magagandang sisters. Kung efficiency and habol ni T. Siopao, well eliminate the inverter and eliminate the PSU! If you look at the output ng PSU, di ba +12V, -12V, at +5V and -5v, at may 3.3V pa ata. lahat sila DC!para ma explain lang.If you give me two car batteries, makukuha ko yung mga voltages listed, may + and -. I once conceptualized a UPS for computers using the batteries directly and forgo the inverter part and the PSU part. Hinde practical dahil hinde convenient to use. Yung UPS, plug mo lang dun ang computer, ayos na.
Now, if we have to retain the use of the PSU, for one thing, we need only one battery. ang inout yan ay 220VAC, diniDC to get 220x1.41V DC and normally 400V na capacitors ang gamit. Inooscillate ito sa very high frequency pra maga psuedo AC uli(On/Off) then it is fed into relatively smaller transformers that what we would normally use for 60Hertz frequency. dun sa seconday ang mga multi volts outputs na diniDCX uli, filtered, regulated and fed to the CPU.Ayun. ang maselan sa switching PS ay ang regulatiopn sa oscillation of the pseudo AC.
kaya, I agree with some inputs dito that what T.S. should do is to get transformers na 12V x 1.41 and primaries. E DC muna and 12V then oscillated to get psuedo AC but at very high frequencies. then ganun din mga secondaries.