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Question:

DC into AC and transformers PHYSICS help?

Devices that convert the car battery's 12 V DC into 110 V AC are easily available. The conversion from 12 V DC into 110 V AC is done in 2 steps. One circuit in the device changes DC into AC and transformer changes the voltage. Does it matter which step is done first and why?Any help would be awesome! Thanks!

Answer:

transformers do not change DC values. Do not hook a transformer to DC. Depending on how the connections are made, it may be a short circuit.
a device which converts Direct current into Alternating current is called an INVERTER - - - a TRansformer NEEDS Alternating or ( in this case PULSATING Direct current ) in order to work -- so an INVERTER has a circuit which makes PULSATING Direct current - - - There are several designs -- and If this circuit puts a current in L one TRansformer primary winding to ground Stops theninto L two TRansformer primary to ground - on and off over and over -- - - the secondary will have a REAL Alternating current output - google INVERTER Design / INVERTER / Silicon Controlled Rectifier INVERTER Design --- the Voltage Step up done last ( second Step ) -- because the TRansformer NEEDS the first Step ( a circuit to make an REAL ac or PULSATING dc in order to function )

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