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Inverter

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AC to DC to AC Inverter

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Inverter

  1. 1. WELCOME
  2. 2. INVERTER
  3. 3. PRESENTED BY...... . • MANAB GOSWAMI • 12300311064 2 • MD ARIF HUSSAIN • 12300311066 • RANJIT GHATAK • 12300311083 • RITAYAN BANDYOPADHYAY • 12300311085
  4. 4. Acknowledgments This presentation on our final year project whose topic is : “ INVERTER ” has become reality due to the dedicated help of some respected persons ……… so first of all we would like to thank our respected ANIRBAN SIR for helping & guide us every time we required…… our heartiest thanks to prof. Bikash Dey sir for sharing his knowledge with us…….. We would also like to thank some of classmates & friends for providing us with a lot of information's & ideas………………………………..
  5. 5. 1. Introduction 2. Components 2.1. parts list. 2.2. Brief Description Of Parts. 3. Circuit diagram and Working Principle. 3.1.Circuit Diagram. 3.2.working principle of the circuit. 4. Results. 5. Conclusion. 6. Future Prospects. 7. References.
  6. 6.  Now the application of inverters are enormous in day to day’s life . During the power cuts we generally see its use in both rural & urban areas.  In our project we made a simple “DC to AC inverter” using 555 timer IC .  The astable multivibrator mode operation of 555 timer IC utilized here for AC oscillation.  It is a low cost simple “12v to 220v” inverter circuit.  Inverters are very useful electronics products for compensating emergency power failure.  More advancement can also be made in circuit design to make it work more efficiently & in large scale.
  7. 7. COMPONENTS O In the designing of this circuit we have mainly used different types of linear & nonlinear electronics components . Some of the few components of our inverter are listed & described in the below section…… PARTS LIST:- O 555 TIMER IC(NE555N) O VOLTAGE REGULATOR(CD7805) O TRANSISTOR(CL100S) O STEP UP TRANSFORMER(9-0-9) O RECHARCHABLE BATTERY(12V) O SMPS(BATTERY CHARGER) O RESISTORS O CAPACITORS O HEAT SINK O SINGLE STAND WIRES
  8. 8. BRIEF DESCRIPTION OF PARTS  555 TIMER IC (NE555N) The 555 Timer IC is highly stable for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor.
  9. 9. RECHARGABLE BATTERY (12v) • A rechargeable battery, storage battery or accumulator is a type of electrical battery. it compromises one or more electrochemical cells and is a type of energy accumulator used for electrochemical energy storage. It is technically known as a secondary cell because its electrochemical reactions are electrically reversible. Rechargeable batteries come in many different shapes and sizes, ranging from button cells to megawatt systems connected to stabilize an electrical distribution network. Several different combinations of chemicals are commonly used, including: lead-acid, nickel cadmium (NiCad), nickel metal hydride (NiMH), lithium ion (Li-ion) and lithium ion polymer (Li-ion polymer).
  10. 10. TRANSISTOR (CL100S) CL100 i s a g ene r a l purpo s e , medium powe r NPN t r ans i s to r . I t i s mo s t l y us ed a s swi t ch in c ommon emi t t e r c onf i gur a t ion. The t r ans i s to r t e rmina l s r equi r e a f i x ed DC vol t a g e to ope r a t e in the de s i r ed r e g ion o f i t s cha r a c t e r i s t i c s cur v e s . Thi s i s known a s the bi a s ing . Fo r swi t ching appl i c a t ions , CL100 i s bi a s ed in such a wa y tha t i t r ema ins ful l y on i f the r e i s a s i gna l a t i t s ba s e . In the abs enc e o f ba s e s i gna l , i t g e t s turned o f f c ompl e t e l y .
  11. 11. VOLTAGE REGULATOR (CD7805) 7805 is a voltage regulator integrated circuit. It is a member of 78xx series of fixed linear voltage regulator ICs. The voltage source in a circuit may have fluctuations and would not give the fixed voltage output. The voltage regulator IC maintains the output voltage at a constant value. The xx in 78xx indicated  the fixed output voltage it is designed to provide. 7805 provides +5V regulated power supply. Capacitors of suitable values can be connected at input and output pins depending upon the respective voltage levels.
  12. 12. An LED lamp is a light-emitting diode product that is assembled into a lamp (or light bulb) for use in lighting fixtures. Like incandescent lamps and unlike most fluorescent lamps (e.g. tubes and compact fluorescent lamp(CFL)), LED lights come to full brightness without need for a warm-up time; the life of fluorescent lighting is also reduced by frequent switching on and off.
  13. 13. LED chips need controlled direct current (DC) electrical power; an appropriate power supply is needed. LEDs are adversely  affected by high temperature, so LED lamps typically include heat dissipation elements.
  14. 14. •12V SMPS (BATTERY CHARGER) A SWITCHED-MODE POWER SUPPLY (SWITCHING-MODE POWER SUPPLY, SMPS, OR SWITCHER) IS AN ELECTRONIC POWER SUPPLY THAT INCORPORATES A SWITCHING REGULATOR TO CONVERT ELECTRICAL POWER EFFICIENTLY. LIKE OTHER POWER SUPPLIES, AN SMPS TRANSFERS POWER FROM A SOURCE, LIKE MAINS POWER, TO A LOAD, SUCH AS PERSONAL COMPUTER, WHILE CONVERTING VOLTAGE AND CURRENT CHARACTERISTICS.
  15. 15. •RESISTORS A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. Resistors act to reduce current flow, and, at the same time, act to lower voltage levels within circuits. Resistors may have fixed resistances. The current through a resistor is in direct proportion to the voltage across the resistor terminals.
  16. 16. •CAPACITORS A CAPACITOR (ORIGINALLY KNOWN AS CONDENSER) IS A PASSIVE TWO-TERMINAL ELECTRICAL COMPONENT USED TO STORE ENERGY ELECTROSTATICALLY IN AN ELECTRIC FIELD. THE FORMS OF PRACTICAL CAPACITORS VARY WIDELY, BUT ALL CONTAIN AT LEAST TWO PLATES SEPARATED BY DIELECTRIC. A DIELECTRIC CAN BE GLASS, AIR, PAPER, MICA, ETC. THE DIELECTRIC ACTS T O I N C R E A S E T H E C A P A C I T O R ’ S C H A R G E C A P A C I T Y . CAPACITORS ARE WIDELY USED AS PARTS OF ELECTRICAL CIRCUITS IN MANY COMMON ELECTRICAL DEVICES.
  17. 17. CIRCUIT DIAGRAM:
  18. 18. WORKING PRINCIPAL OF THE CIRCUIT This is a simple inverter circuit based on 555 timer IC. Here timer IC wired as an astable multivibrator mode. The diode IN4007 is used to get 50% duty cycle for the pulses from 555. The output pulse from 555 astable multivibrator is fed to the base of power transistor 2N5192. The 2N5192 transistor used as switch.  Transformer step up the 12V to 220V, thus we got 50Hz, 220V AC supply at the output of transformer secondary. Use a 12V battery along with a battery charger circuit to power this DC to AC inverter.
  19. 19. CONCLUSION  After designing our simple DC to AC inverter using 555 timer circuit we have observed that the converter is converting the 12v DC supply to AC through proper circuit and then by using 9v to 220v center trapped transformer we are increasing the voltage and thus we can glow a led for a certain time period.  AC can’t be stored for future use whereas DC can be stored in battery & it can be converted back to AC by using power inverters when require.  Thus finally we have successfully completed our project & by observing its results we can say that it’s a very important power cut solution for this era & also potential material for coming years………
  20. 20. FUTURE PROSPECTS   The inverter made by us has no doubt a very handy & promising future prospects.  We can still make it large by simple using more complex circuits & large batteries.  For more advancement on this domain research & development works needs to be done. so let us hope a world with an uninterrupted supply of power by using INVERTER circuits……………..
  21. 21. REFERENCES  www.google.com www.Wikipedia.com Basic Electronics Books. Pdf materials provided by our project guide Prof. Anirban Ghosal.

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