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∙ 11y agono, the transformer is much more efficient
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HOWEVER- a transformer only changes the voltage of AC current- it does not change it to DC. You will still need diodes or rectifiers. You can also use a motor/generator- a 230v AC motor turns a 12 v DC generator.
Wiki User
∙ 11y agoCapacitors are completely different than resistors and there can be no converting between them, whatever that means.
An AC powered unregulated power supply usually uses a transformer to convert the voltage from the wall outlet (mains) to a different, nowadays usually lower, voltage. If it is used to produce DC, a rectifier is used to convert alternating voltage to a pulsating direct voltage, followed by a filter, comprising one or more capacitors, resistors, and sometimes inductors, to filter out (smooth) most of the pulsation.
A transformer cannot convert AC into DC.
I don't understand your question. Are you asking how to convert from 60hz to 25hz using a transformer? That cannot be done. Frequency in = frequency out.
A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.
Capacitors are completely different than resistors and there can be no converting between them, whatever that means.
An AC powered unregulated power supply usually uses a transformer to convert the voltage from the wall outlet (mains) to a different, nowadays usually lower, voltage. If it is used to produce DC, a rectifier is used to convert alternating voltage to a pulsating direct voltage, followed by a filter, comprising one or more capacitors, resistors, and sometimes inductors, to filter out (smooth) most of the pulsation.
can't be done using just resistors
Of course you can! A transformer can change the voltage from 120 to 36. A rectifier can turn AC into DC. If you need constant voltage, capacitors to regulate flow can be added.
You can convert 120 volts AC to 5 volts DC using a transformer to lower the voltage from 120V AC to a lower AC voltage, then rectifying the AC voltage to convert it to DC, and finally using a voltage regulator to ensure a stable output of 5 volts DC. This can be done using a step-down transformer, a rectifier circuit, and a voltage regulator.
Decepticon
we cannot use transformer because transformer cannot change frequency . . .
rectifier transformer converts acinto dc.but,power transformer convert step up or step down ac energy without changing frequency
A transformer cannot convert AC into DC.
I don't understand your question. Are you asking how to convert from 60hz to 25hz using a transformer? That cannot be done. Frequency in = frequency out.
To convert 7620 volts to 240 volts, you would need to use a transformer. The transformer would step-down the voltage from 7620 volts to 240 volts. The ratio of the turns on the transformer primary and secondary windings determines the voltage transformation.
The higher voltage it transformed to a lower voltage by the use of a step down transformer.