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Showing 1 to 18 of 18 for “"Reference Voltage"”.
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A High Temperature Reference Voltage Generator with SiC Transistors
… demand. This thesis presents a high temperature reference voltage generator that can operate reliably up to 250 °C for a downhole communication system. The proposed reference voltage generator is designed and prototyped using 4H-SiC bipolar transistors. Silicon carbide (SiC) is a semiconductor …
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Development of p-resonant voltage control for dc motor using arduino
… about to design and to development of P-Resonant voltage control for DC motor. The objective of P-Resonant controllers is applied to control the output voltage of the DC motor. An Arduino board device is used as a medium for the implementation of the control system design. The P-Resonant …
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Investigation and design of key circuit blocks in a 10 bit SAR ADC at 100 MS/s
… capacitor DAC and the settling problems of the reference voltage associated with a switched capacitor scheme. The switched capacitor DAC is a critical block for overall ADC performance and various trade-offs are weighed up before discussing the layout of the split capacitor DAC implemented in …
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Design and analysis of future memories based on switchable resistive elements
… and makes it possible to generate a higher voltage than the supply voltage across the resistive elements. Passive memory architectures based on crossbar-arrays are very compact because they don’t include a transistor in the memory cells. Different active periphery circuits for the read and …
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Development of repetitive current control for lead acid battery using arduino
… project uses Buck-Boost converter circuit with reference voltage of 14V from lead acid battery. The range of buck operation input voltage is between 18V to 15V while boost operation input voltage range is between 10V to 13V. The current sensor uses in this project is to measure the output …
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PID-hysteresis voltage control technique for three phase induction motor (matlab simulink and arduino)
… performance is by comparing the actual measured voltage of the motor with respect to their reference voltage. The difference is then corrected thus minimizing the voltage error. A simple hardware implementation of the PID Hysteresis voltage controller is designed and some simulation and …
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An ultra low power ADC for wireless micro-sensor applications
… are used to generate the auto-zero reference voltage such the CMRR of the ADC is maximized;
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Measuring the Momentum of Throughfall Drops and Raindrops
… and raindrops. The instrument consisted of a voltage amplifier, voltage comparator, reference voltage, digital counting circuit and a digital display. The instrument was activated by an impact sensor constructed from an 8.0 ohm, 5.0 inch diameter audio speaker. A falling water drop's momentum …
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Vehicle to grid (V2G) for reliable microgrid operation: Voltage/frequency regulation and real-time OPAL-RT digital simulation
In this thesis work, we will achieve a decent voltage and frequency regulation in an islanding microgrid. In this project we will consider an emergency situation that happens by a fault or blackout so the system will be disconnected from the grid, in a concept that a home (or residence) is equipped …
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Analoge Auslese- und Triggerelektronik für Mikrostreifen-Gaszähler
… analog detector signals with a programmable reference voltage and delivers a fast digital signa
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Low-power high-performance SAR ADC with redundancy and digital background calibration
… and incomplete digital-to-analog converter (DAC)/reference voltage settling. In this the- sis, a sub-radix-2 SAR ADC is presented with several new contributions. The main contributions include investigation of using digital error correction (redundancy) in SAR ADCs for dynamic error correction and …
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Position Sensorless Control of Interior Permanent Magnet Synchronous Machines with a Single DC-Link Current Sensor
… at low speed. The injected signal forces the reference voltage vector outside the low modulation region. But the unaligned measurement of the phase current increases the position estimation error and causes a third-order harmonic. The modified reconstruction scheme takes advantage of the …
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CMOS digital pixel sensor array with time domain analogue to digital conversion
… capacitance is first charged to an initial voltage, and then discharged by the photodiode leakage current, which is comprised mainly of optically generated carriers. The analogue to digital conversion is performed by measuring the time taken for the photodiode cathode voltage to fall from …
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LOW POWER AND HIGH SIGNAL TO NOISE RATIO BIO-MEDICAL AFE DESIGN TECHNIQUES
… needs an accurate and temperature-independent reference voltage and current for the ADC, commonly known as Bandgap Reference Circuit (BGR). These circuits need to consume as low power as possible to enable these circuits to be powered from the battery. The work started with analysing the …
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PWM Techniques for Control of Dual-Inverter Supplied Six-Phase Drives
… power to the machine. Second, the same phase voltages can be achieved with half the dc-link voltages on the two inverter inputs compared to the single-sided supply, which can be useful in applications such as electric and hybrid electric vehicles and medium sized ships, where the dc voltage …
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Correlator for a Basis-Space Architecture Ultra-Wideband Receiver
… bandwidth support and linearity as well as reference voltage susceptibility. Additional amplify-hold blocks are also added to the implementation to relax settling time and ease integration capacitor reset. Finally, a basis-receiver experimental apparatus is introduced to further characterize …
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Novel load identification techniques and a steady state self-tuning prototype for switching mode power supplies
… operations, where perturbations on the output voltage are limited by the regular operations of the converter. The main advantage of steady state SI methods, is the detection of possible non-idealities occurring during the converter operations. In this way, the system dynamics can be …
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A 0.45 V low power high PSRR subthreshold CMOS voltage reference
Voltage references are broadly used in analog and digital systems to generate a DC voltage independent of process, supply voltage and temperature (PVT) variations. Conventional band gap references (BGR) add the forward bias voltage across a PN junction with a voltage that is proportional to …