Sökning: "ring oscillator"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden ring oscillator.

1. 1. Design of radio frequency energy harvesting system : for use in implantable sensors

   Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System; Linköpings universitet/Tekniska fakulteten

   Författare :Amir Ebrahimi; David Kihlberg; [2022]
   Nyckelord :RF energy harvesting; RF rectifier; efficiency; voltage sensor; voltage doubler;

   Sammanfattning : Implantable biomedical wireless sensors provide monitoring of vital health signs such as oxygen, temperature and intraocular pressure and may help to analyse and detect diseases in humans and animals. However, one of the design challenges of implantable devices is providing a safe and reliable energy source. LÄS MER

3. 2. Design and Verification of An Energy-Efficient Edge-Pursuit Comparator

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Haiqin Xie; [2022]
   Nyckelord :analog to digital converter ADC ; SAR; comparator; edge-pursuit comparator EPC ; edge-pursuit comparator enhanced with capacitor EPCC ; energyefficient.; analog till digital omvandlare ADC ; SAR; komparator; edge-pursuit komparator EPC ; edge-pursuit komparator förbättrad med kondensator EPCC ; energieffektiv.;

   Sammanfattning : With the rapid development of mobile communication, sensors, and biomedical in recent years, the demand for accurate data information, highquality audio and image has become much more significant, which requires a high-precision Analog to Digital Converter (ADC) to process weak analog signals. As one of the core modules of ADC, the comparator’s precision, speed, stability, and noise play a key role in the performance of the whole circuit. LÄS MER

4. 3. Temperature Compensation in CMOS Ring Oscillator

   Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System

   Författare :Xiaohua Wei; Dingyufei Zhang; [2022]
   Nyckelord :Current Starved Ring Oscillator CSRO ; Temperature compensation; Supply voltage compensation; Stable frequency; Digital controlling; Phase Frequency Detector PFD ; Dynamic comparator; Bidirectional counter; Charge pump CP ; Frequency divider; Power consumption; AMS 0.35 um; EDA tool Cadence;

   Sammanfattning : A digital system is often required to operate under a specific frequency. A ring oscillator can be helpful in this circumstance because it can generate a signal with a specific frequency. However, a ring oscillator is also sensitive to the environment temperature. LÄS MER

5. 4. Study of Monitoring Circuitry for Ageing in FPGAs

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Pengxiang Cheng; [2021]
   Nyckelord :FPGAs; Ageing; Technology and Engineering;

   Sammanfattning : Along with the down-scaling of CMOS technology, ageing has become one of the most important reliability challenges in CMOS devices. Ageing is defined as degradation in certain device characteristics such as delay, which can result in failure. LÄS MER

7. 5. Integrated CMOS Doppler Radar : System Specification & Oscillator Design

   Magister-uppsats, Linköpings universitet/Elektroniska Kretsar och System

   Författare :Shampa Biswas; [2016]
   Nyckelord :CMOS oscillator circuit design;

   Sammanfattning : This thesis report presents system specification, such as frequency and output power level, and selection topology of an oscillator circuit suitable for a CMOS Integrated Doppler radar application, in order to facilitate short range target detection within 5-15 m range, using a 0.35 μm CMOS process. LÄS MER