A transformer changes the VOLTAGE of AC current (AC to AC).
A rectifier changes AC to DC.
what is the function of transformer in the half wave rectifier circuit
rectifier transformer converts acinto dc.but,power transformer convert step up or step down ac energy without changing frequency
The twoends of a center tap transformer cannot be used without a rectifier.
A rectifier is a device that converts AC to DC.A transformer is a device that changes the ratio of current to voltage.A computer power supply functions as both.Answer found in CompTIA A+ Guide to Managing and maintaining Your PC 6th edition on page 154.
rectifier tr. is converting ac energy into dc energy. but power transformer converting step up or step down ac energy without changing frequency.AnswerA transformer and a rectifier are two completely-different devices. A transformer changes voltage levels, whereas a rectifier changes alternating current to direct current.There is no such thing as a 'rectifier transformer', although it is common for the output of a transformer to be rectified. Such combinations are widely-used in electronic components, where the mains supply must be changed to a low-voltage d.c. supply.The term, 'power transformer' is normally applied to step-up and step-down transformers used in the high-voltage electricity transmission system, as opposed to those used in the electricity distribution system, which are normally called 'distribution transformers'.
A full wave rectifier is a component or set of components that change AC waveforms into DC. It is frequently used as part of a power supply circuit and therefore it is often directly adjacent to a transformer. However, a transformer is used to provide a suitable AC voltage and is not part of the rectifier.
A rectifier is a device that converts alternating current to direct current. A transformer is a device that changes the ratio fo current to voltage. A rectifier is found in a PC power supply.
For a center tapped full wave rectifier transformer secondary gives a voltage that is 2Vm. For a bridge rectifier it is Vm.
A transformer is a device that changes the level of an a.c. voltage, while a rectifier is a device that converts alternating current to direct current.
A battery charger does not necessarily have to use a transformer and a rectifier to produce DC voltage, although they are commonly used in many designs. A transformer steps down AC voltage to a lower level, while a rectifier converts AC to DC. However, some chargers may utilize switch-mode power supplies or other techniques to directly convert AC to DC without a traditional transformer. In those cases, different methods of voltage regulation and conversion are employed.
in full wave bridge rectifier, the input and out put voltages are same but in case of two diode rectifier the input and output voltages can be different as per requirement a there is a transformer in the circuit. The former is lighter and the later is heavier.
For decrease the rectifier number