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ups center tape transformer

GopherT

GopherT

Joined Nov 23, 2012
8,009
green90 said:
why ups center tape transformer is (7.6v-0v-7.6) while i has 12v battery ???
Click to expand...
That should be "center tap" transformer.

Next. 7.6 for each side is 15.2V total AC (as RMS voltage).

Once the 15.2 v is rectified and smoothed with decoupling capacitors, with minimal load, the DC should be equal to the Peak-to-peak (minus rectifier diode drops). Or, RMS voltage x 1.414 or about 21 volts.
 
green90

Thread Starter

green90

Joined Sep 3, 2015
29
GopherT said:
That should be "center tap" transformer.

Next. 7.6 for each side is 15.2V total AC (as RMS voltage).

Once the 15.2 v is rectified and smoothed with decoupling capacitors, with minimal load, the DC should be equal to the Peak-to-peak (minus rectifier diode drops). Or, RMS voltage x 1.414 or about 21 volts.
Click to expand...
thank you ... but in inverters cct always use 12v-0v-12v while in ups (7.6v-0v-7.6) while in both case using 12v battery
Very-simple-50-watt-inverter-using-MJ2955.png
 
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