Transformer Power Supply And Filter Experiment

Power supply block diagram.

Transformer power supply and filter experiment.

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. Power from your electric utility con edison and converts the a c. Transformers have been used at powerplants since the inception of alternating current generation a century ago. Filters and power supplies introduction a power supply takes alternating current or a c.

Household wall socket power plug and cord. 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. Supplies normally consist of a transformer a rectifier bank and a filter. A power supply has been assembled for you and is available from the laboratory tas.

T 1000 transformer has four windings. The circuit is shown in figure 1. This transformer is rated at 1 0 kva. Terminal strip with at least three terminals.

Any gauge of wire will work but 28 gauge is recommended so as to make a coil with as many turns as. Power supplies have several com ponets which are at first understood separatly and then they are joined together. 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. Create a 1 2 ratio step up transformer by connecting the two primary windings in series and the two secondary windings in series.

There are three step. 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. Simple shunt capacitor filter reduces the ripple voltage but increases the current through the diode.

This transformer will also be used in the next part of the experiment so leave the connections intact when the present part is finished. It is intended to be used to make electromagnets because many turns of wire may be wrapped in a relatively small diameter coil. Now clear a doubt. This large current may damage the diode and at the same time it causes greater heating of the power transformer resulting in decreased efficiency.

The transformer adjusts the voltage from the ac line to the appropriate voltage and provides isolation. Through the reclamation power resources office in denver and via the manuals and standards development program. Electrical current into d c. L c filters power supply filters.