AC power supply is provided to our homes from grid station, but there are many home appliances that are operated by DC.Justify how they will operate while AC main supply is provided but we have needed DC to operate them.
2007-06-20 03:54:16 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Rectification. The wall wart contains whatever transformer is needed to convert the mains AC voltage to an AC voltage that will result in the desired DC voltage. One or more diodes are used to convert the AC to DC. This process is called rectification and a diode can also be referred to as a rectifier. One diode wil provide "half-wave" rectification, that is, it conducts current for one polarity of the AC wave and blocks current flow in the opposite direction. Two diodes and a center-tapped transformer, or four diodes connected as a "bridge", can provide "full-wave" rectification. See the ref. for a fuller explanation.
2007-06-20 03:59:12 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋
Use AC Adopters. DC appliances come with diffrent DC voltage ratings so be cautious in using the correct ratings. Else get an AC Adopter which gives the option of different voltage rating operated by a switch.
You can also get an AC Adopter made by any electronic engineer or technician which may workout cheaper.
2007-06-20 04:05:42 · answer #2 · answered by s_shiromani 4 · 0⤊ 0⤋
You use the little wall wart transformer things to convert the AC to DC. AC power transmission is cheaper and more efficient, but most electronics run on DC, so the converters are the best answer.
2007-06-20 03:58:01 · answer #3 · answered by John 4 · 1⤊ 0⤋
Put simply, Rectifiers, they chop off the negative part of the AC sine wave, the results are pulsed DC current, by passing that current through filters it become as close to pure DC as possible. Pure DC is from stowage batteries
2007-06-20 04:16:59 · answer #4 · answered by pemsit 3 · 1⤊ 0⤋
There are voltage rectifiers in these DC-only devices that convert pure (alternative polarity) AC to single polarity AC, which is then converted into DC by the use of smoothing/filter capacitors.
2007-06-20 04:05:26 · answer #5 · answered by anotherhumanmale 5 · 0⤊ 0⤋
Back In Black! Amazing song, Or Highway To Hell. Both AC/DC Classics.!
2016-04-01 07:42:07 · answer #6 · answered by Sandra 4 · 0⤊ 0⤋
AC is converted to DC by use of a rectifier
http://en.wikipedia.org/wiki/Rectifier
2007-06-20 04:05:30 · answer #7 · answered by hero 2 · 0⤊ 0⤋
put batteries in them.
2007-06-20 03:57:24 · answer #8 · answered by Always Right 7 · 0⤊ 2⤋