Transformer Power Supply And Filter Experiment

In other words for a transformer there is no direct electrical connection between the two coil windings thereby giving it the name also of an isolation transformer generally the primary winding of a transformer is connected to the input voltage supply and converts or transforms the electrical power into a magnetic field.

Transformer power supply and filter experiment.

The transformer adjusts the voltage from the ac line to the appropriate voltage and provides isolation. Stepping down voltage first step is is scale down the voltage by a step down transformer a step down transformer converts the 220 ac voltage to the lower ac voltage. Supplies normally consist of a transformer a rectifier bank and a filter. Power supplies have several com ponets which are at first understood separatly and then they are joined together.

Now clear a doubt. Electrical current into d c. Create a 1 2 ratio step up transformer by connecting the two primary windings in series and the two secondary windings in series. Firstly 220v ac is converted into 12v ac by using simple step down 220v 12v transformer.

Simple shunt capacitor filter reduces the ripple voltage but increases the current through the diode. The circuit is shown in figure 1. Maximum people thinks that a transformer give dc output voltage because we don t get shock by touching its output wire but this is totally wrong. A power supply has been assembled for you and is available from the laboratory tas.

Terminal strip with at least three terminals. T 1000 transformer has four windings. This transformer is rated at 1 0 kva. This transformer will also be used in the next part of the experiment so leave the connections intact when the present part is finished.

Filters and power supplies introduction a power supply takes alternating current or a c. There are three step. The objective of this project is to convert 220v ac supply in to 12v and 12v dc supply that is why it is named dual power supply as we get positive and negative 12v power supply at the same time. It is intended to be used to make electromagnets because many turns of wire may be wrapped in a relatively small diameter coil.

The authors gratefully acknowledge the assistance of all who. Power transformer 120vac step down to 12vac with the center tapped secondary winding radio shack catalog 273 1365 273 1352 or 273 1511. Power from your electric utility con edison and converts the a c. This large current may damage the diode and at the same time it causes greater heating of the power transformer resulting in decreased efficiency.

Transformers have been used at powerplants since the inception of alternating current generation a century ago. Through the reclamation power resources office in denver and via the manuals and standards development program. Power supply block diagram. Household wall socket power plug and cord.