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  1. 1. POWER MANAGEMENT CIRCUITS<br />-SHIFA JINDAL<br />-CHANDRANI GHOSH<br />-NIKHIL GOYAL<br />FINAL YEAR PROJECT<br />
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  3. 3. Inefficiency .<br />No circuitry involved to minimize losses.<br />Regulation of output voltages is improper.<br />Major Disadvantages of the Traditional PS System <br />
  4. 4. Power management broadly refers to the generation and control of regulated voltages required to operate an electronic system.<br />It helps to scale down the voltage at the level of about 1.1V required by the processors.<br />IC components such as linear regulators, switching regulators, switched capacitor voltage converters, voltage references are basic elements of power management.<br />Power management<br />
  5. 5. BLOCK DIAGRAM OF POWER MANAGEMENT<br />
  6. 6. Clean vs. noisy supply<br />Clean DC vs. rectified DC<br />Regulated vs. Unregulated<br />Supply impedance improvement<br />Efficiency maximize<br />WHY POWER MANAGEMENT ?<br />
  7. 7. COMPANIES INVOLVED IN POWER MANAGEMENT<br />
  8. 8. AC – AC ( TRANSFORMER )<br />AC – DC ( RECTIFIER )<br />DC – AC ( HOME INVERTERS )<br />DC – DC ( CELL PHONES )<br /> BATTERY MANAGEMENT<br /> ( BATTERYCHARGERS )<br />AREAS OF POWER MANAGEMENT<br />
  9. 9. Takes one level of DC voltage and converts it to another level.<br />Output voltage level can be higher, lower or negative compared to the input level.<br />Voltage Regulation is done by closed loop mechanism.<br />Closed loop control is used for stable operation to obtain output voltage within the band of tolerance.<br />DC to DC CONVERTER<br />
  10. 10. Resistor Divider.<br />LDO – Low drop out regulators.<br />Switching Converters :<br /> a) Buck Converter<br /> b) Boost Converter<br /> c) Inverting Boost Converter<br /> d) Buck – Boost Converter<br /> e) Charge Pumps<br />TYPES OF DC – DC CONVERTERS<br />
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  12. 12. Hardware implementation of energy efficient DC–DC converter to increase the life time of cell phone battery. <br />Circuit implementation will depend upon several specifications. These are as follows :<br /> a) Input and output voltage range.<br /> b) Conversion ratio range.<br /> c) Efficiency.<br /> d) Output voltage ripple.<br />PLAN OF ACTION<br />
  13. 13. e) Maximum output current. <br />f) Quiescent current.<br />g) Cost of circuit components.<br />h) Better voltage regulation which gives DC gain.<br />CONTINUE…<br />
  14. 14. In this presentation we gave the outline of our final year project on the topic of power management circuits.<br />It includes introduction to the power management, it’s area of operation, present market value and several application of it.<br />Also reveals the aim of the hardware implementation with several specifications to be considered during circuit implementation.<br />CONCLUSION<br />
  15. 15. THANK YOU<br />

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