You can make a voltage divider set of resistors and tap off the desired voltage. Some voltage regulators can be fed much higher voltages. The regulator will provide a constant settable voltage with short circuit and overload protection. There are DC to DC converters. They first turn the DC into AC then rectify it and produce DC.
It's just two inductors usually with an iron core that steps up voltage in an ac circuit. Doing this makes the amount of current (amperes) go down due to the formula P=IE. Be more specific what you want to know.
Another Answer
A 'step up' transformer is one whose secondary (output) voltage is greater than its primary (input) voltage. This is achieved by having a greater number of turns in the secondary winding than there are in the primary winding. Further to the original answer, a transformer doesn't make the current go up and down!
In power applications it is a step down transformer. In a lower power application it might just be a circuit that converts AC to DC. A rheostat or potentiometer can also be used, but can waste power.
Nope. A rectifier is used instead. A transformer can only reduce the voltage of the AC but does not change it into DC.
A transformer is connected to the output of inverter in order to step up the AC voltage output.
Transformers only work on ac supply because it principle is mutual induction. DC supply has constant magnitude whereas AC has alternating magnitude. so we can step up or step down current/voltage in transformer in ac only.
A step-up transformer steps up the voltage rather than stepping down the voltage like a normal ac wall adapter does. By stepping up the voltage it is not free electricity it allspice takes away from the available amps.e.g.Say you have 12V 1A AC going in to the primary coil of your step up transformer, this would result in a higher voltage and lesser amps like 24V 0.5A AC coming out of the secondary coil.AnswerA step-up transformer steps up voltage, but it DOES NOT 'step down' current! The secondary current is determined by the load, and the primary current is then determined by the value of secondary current.
AC only. That's one of many reasons why AC is more useful (and more widely used!) than DC.
Yes this can be done with a step up transformer. Keep in mind that it is a 10 : 1 ratio. For every 1 amp that you want out of the 120 volt secondary there will have to be 10 amp input on the primary. This can lead to a very big wire size on the primary coil.
A step up transformer is used to step up an AC voltage
A step-up transformer increases (or "steps up") the voltage of an alternating electrical current. For example, a step-up transformer could be used to increase 120V AC to 277V AC to provide power to 277V electrical equipment in a building that does not already have a 277V electrical system.Other examples where a step-up transformer might be used include these:Using 240V AC equipment with a 120V AC mains supply.Generating high voltage for use with tubes, such as a CRT.Generating high voltage for use in electric energy distribution.
Because transformers are usually used to step down AC votage, however they usually can accept DC power to step down or up.
The function of any transformer is to change one AC voltage value to another AC voltage value. A step down transformer will transform a higher AC voltage to a lower AC voltage. A step up transformer will transform a lower AC voltage to a higher AC voltage. The transmission of electrical power uses both of these types of Transformers. From the generation station the voltage is stepped up to a very high transmission voltage and at the end of the transmission line it is stepped down to a voltage that consumers can utilize.
A transformer is connected to the output of inverter in order to step up the AC voltage output.
The function of any transformer is to change one AC voltage value to another AC voltage value. A step down transformer will transform a higher AC voltage to a lower AC voltage. A step up transformer will transform a lower AC voltage to a higher AC voltage. The transmission of electrical power uses both of these types of transformers. From the generation station the voltage is stepped up to a very high transmission voltage and at the end of the transmission line it is stepped down to a voltage that consumers can utilize.
rectifier transformer converts acinto dc.but,power transformer convert step up or step down ac energy without changing frequency
A transformer can step up or step down AC voltage
AC current or DC current can be used in transformers. A transformer is made of two coils of wire, the input coil induces a current into the output coil. Transformers change the voltage either up (step up transformer) or down (step down transformer). The amount of change in voltage is dependent solely on the number of windings in both coils in the transformer. DC transformers work exactly the same way AC transformers do.
Transformers only work on ac supply because it principle is mutual induction. DC supply has constant magnitude whereas AC has alternating magnitude. so we can step up or step down current/voltage in transformer in ac only.
A step-up transformer steps up the voltage rather than stepping down the voltage like a normal ac wall adapter does. By stepping up the voltage it is not free electricity it allspice takes away from the available amps.e.g.Say you have 12V 1A AC going in to the primary coil of your step up transformer, this would result in a higher voltage and lesser amps like 24V 0.5A AC coming out of the secondary coil.AnswerA step-up transformer steps up voltage, but it DOES NOT 'step down' current! The secondary current is determined by the load, and the primary current is then determined by the value of secondary current.
Confusing question! If it is, why transformers use ac? Then it is, for induction there must be change in flux linkage which is possible with ac which frequently changes polarity. In dc there wont be any change. If que is, why step up is used? There will be considerable voltage drop with distant transmission. For this reason step up voltage is required with step up transformer. Since, in high voltages this drop is negligible or efficient transmission