Power Supply

POWER SUPPLY
REGULATING SOURCE OF VOLTAGE 5V, 12V, -5V, -12V

LOPEZ REYES JOSE ANTONIO
RADILLO GONZALEZ HUGO CESAR
RAMOS CASTELLANOS MIGUEL ANGEL
RIVERA LARA JOSE EDUARDO

ENGLISH 1
1-B
MECHATRONICS

TABLE OF CONTENTS

INTRODUCTION ………………………………………………………………………3

MATERIALS AND COMPONENTS…………………………………………………..4DIAGRAM………....................................................................................................8

HOW IT WORKS………………………………………………………………………..8

HOW IT OPERATE……………………………………………………………………..13

MEASURE OF SAFETY……………………………………………………………….15

TROUBLESHOOTING…………………………………………………………………16

CONCLUSION………………………………………………………………………….17

INTRODUCTION
WHAT IS THE PROYECT ABOUT ?
Generally it is understood by power supply of an electrical equipment, the part of thesame destining to adapt the characteristics and parameters of the available energy for the feeding of the same, or primary power supply and all derivations, with the purpose of to provide a stable, suitable and safe operation for any device that is requires to him.
Since almost all the electrical circuits and electronic devices work with direct current, highly functional in batteries since thisdevice its basic characteristics is the direct current, it is necessary to realise the conversion of the AC voltage that is transmitted in all the provisions of the country. Perhaps in order to turn continuous the alternating tención into available when coming out and our circuit specifically of the filter of the rectifier it is not sufficiently good, due to the curling, for a particularapplication or that its magnitude varies before certain types of disturbances that can affect the system that is fence to feed, for example variations of the load, the temperature or the network until a 10%.But our circuit counts on the circuit suitable and defined to have a pure rectifier of the current and thus to obtain DC pure and apt for the use of any device adapted to this type of current.
Of here,the concept of regulating source of alimentacio, like an electronics in charge to provide to a voltage or a DC, but stable the possible thing, to the different elements that are connected to.
We remember that etsa source gave a direct current to us with voltages of
- 5 volts
+ 5 volts
- 12 volts
+ 12 volts
And an adjustable option An adjustable source of tencion normally uses anautomatic circuit of control that detects, practically of an instantaneous way, the variations of tencion of exit. In this case the source to being digital will not be but analogical controlling this adjustable option with a potentiometer .

MATERIAL
| Lista de materiales para la fuente UTJ | |
| Cantidad | Descripción | |
| 1 | Transformado de 24V a 2 Amperes | |
| 1 | Portafusibletipo americano | |
| 4 | Fusibles tipo americano a 2ª | |
| 1 | Switch iluminador de un paso | |
| 4 | Diodos 1N5400 | |
| 2 | Capacitores de 4700uf a 25V | |
| 1 | Capacitores de 0,1uf a 50V | |
| 1 | Capacitor de 100uf a 25V | |
| 2 | Resistencias 200 ohms a 1/2 W | |
| 1 | Groumet para aislar el cable de alimentación | |
| 1 | Cable toma corriente | |
|4 | Spacer`s para separar PCB del chasis | |
| 1 | LM7805 con disipador | |
| 1 | LM7812 con disipador | |
| 1 | LM7905 con disipador | |
| 1 | LM7912 con disipador | |
| 1 | LM317 | |
| 1 | Tansistor BD679 con disipador | |
| 6 | Conector banana Hembra Rojo | |
| 3 | Conector banana Hembra Negro | |
|   | Potenciometro a 5Kohms con perilla | |
| 1 |Carcaza metalica para fuente |   |   | |
| Cable de varios colores calibre 20 de preferencia rojo, negro, amarillo y verde o morado | |
| | |
| | | | | |
LM7805
* 3-Terminal Regulators
* Output Current up to 1.5 A
* Internal Thermal-Overload Protection
* High Power-Dissipation Capability
* Internal Short-Circuit Current Limiting
* Output...