Dissertation > Excellent graduate degree dissertation topics show

Design of low drop out voltage regulator adaptive zero compensation

Author: XiaoLei
Tutor: YangLianXing
School: Fudan University
Course: Microelectronics and Solid State Electronics
Keywords: Low dropout regulation (LDO) multistage amplifier self-adaption zero compensation adjustable resistor stability for closed loop high power-supply rejection ratio (PSRR) high accuracy
Type: Master's thesis
Year: 2008
Downloads: 34
Quote: 0
Read: Download Dissertation


Low dropout regulator (LDO) with high performance such as high power efficiency, high power-supply rejection ratio (PSRR) and high accuracy is presented in this thesis. This paper begins with introduction the newest configuration and zero compensation to improve the stability for the system, after presenting the drawbacks, a new kind zero compensation is brought forward—self-adaption zero compensation to improve performance of LDO. The nulling resistor zero compensation using adjustable resistor in two stage error amplifier is adopted in LDO circuit.When designing the main circuit and auxiliary circuit, low current design is considered to improve the power efficiency. Auxiliary circuit such as bandgap, current bias circuit, over current protection circuit and over heat protection circuit provide the reliability and stability for chip function.As for simulation, specific performances such as AC and transient performance are simulated for LDO system. Simulation is also done for auxiliary circuit to insure right function and stability in closed system.LDO presented in this thesis has been taped out in hynix 0.5um 2P3M mixed signal CMOS technology. The test shows the right function and good performance such as high accuracy, high PSRR, low line regulation and load regulation, low static current, etc. The performance is compared to what in the newest configuration, which shows that the idea and new zero compensation is wonderful to improve and trade off performance.Self-adaption zero compensation presented in this thesis is proved right. The idea and circuit are practical and advantageous.

Related Dissertations

  1. Remote Corrosion Monitoring System of Concrete Structures,TU375
  2. Development and Application of the Test System for HVIGBT Characterization,TM835
  3. The R&D and Engineering Application of Independently Developed DCS for 600MW Power Unit,TP273
  4. Test Research of High Performance Power Management IC,TN492
  5. The Geophysical Application Research on Deep Concealed Ore Deposit Prediction in LALA Copper Mines and Its Peripheral Area,P631
  6. Research on the Fiber Grating Based High-accuracy Temperature/Strain Sensing System,TP212.14
  7. Control Performance Analysis and Control Algorithm Design of Motion Mechanisms within Constraints,TP273
  8. Three-phase high accuracy energy metering circuit design,TM933.4
  9. Research and Application of the Method of Smoothing Transfer of Inter-trajectory for High-speed and High-accuracy Machining,TG659
  10. Design and Implementation of COD Online Monitoring Instrument,TP216
  11. Key Technology Research on the High Accuracy Numerical Control Linkage Rotary Table,TG659
  12. The Design of Strain Detection System with High Accuracy Based on Total Differential Theory,TP274
  13. The Design and Development of Software of High-precision Contact Thread Measuring Instrument,TG85
  14. Offset system design for high-accuracy power chip,TN432
  15. A Finite Difference Method for Time-periodic Solutions of Reaction-diffusion Equations,O241.82
  16. High level of precision anchor cable technology research and application in the Three Gorges Project,TV54
  17. Multi-scale Model and High Accuracy Algorithm for Period Structure of Perforated Composite Materials,TB33
  18. A Finite Difference Method for Time-Periodic Solutions of Nonlinear Parabolic Systems,O241.82
  19. Study on FGD Gypsum-Fly Ash Binder and New Type Block,TQ177.5
  20. Research on the Water Lubricated High Speed and High Accuracy Main Shaft,TH133.2
  21. Automatic Test of 2D Size for Micro-Object by Microlens-CCD-Computer System,TP274.4

CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Converter
© 2012 www.DissertationTopic.Net  Mobile