Experiment 8. Microwaves
... In this experiment the microwaves (at a frequency ∼ 9 GHz) are generated by a varactortuned semiconductor oscillator, which is an LC oscillator based on a high frequency transistor, with a varactor or voltage-controlled capacitor as the tuning element. A varactor is a special reverse-biased diode in ...
... In this experiment the microwaves (at a frequency ∼ 9 GHz) are generated by a varactortuned semiconductor oscillator, which is an LC oscillator based on a high frequency transistor, with a varactor or voltage-controlled capacitor as the tuning element. A varactor is a special reverse-biased diode in ...
A LINK BETWEEN TRADITIONAL AND MODERN TECHNIQUES IN THE
... conversion or sampling techniques based on commercial components and there are indications which demonstrate that digital to analog converters (DAC) based on quantum effects will develop in future. In this paper same measurements have been performed to link these methods and to evaluate the possible ...
... conversion or sampling techniques based on commercial components and there are indications which demonstrate that digital to analog converters (DAC) based on quantum effects will develop in future. In this paper same measurements have been performed to link these methods and to evaluate the possible ...
IECON2003EBP
... The idea of developing a flexible system to study electronic ballasts came from a previous LCC ballast prototype implementation for high-pressure sodium (HPS) lamps using the CC-CC dedicated controller CI 3524. The observed experimental results showed that was possible to avoid the acoustic resonanc ...
... The idea of developing a flexible system to study electronic ballasts came from a previous LCC ballast prototype implementation for high-pressure sodium (HPS) lamps using the CC-CC dedicated controller CI 3524. The observed experimental results showed that was possible to avoid the acoustic resonanc ...
Diagnostic News On-Line Monitoring of Partial Discharge in Voltage Source January 2015
... endwinding vibration monitoring system using fiber optic accelerometers in the 1980s, and many machine manufacturers now supply fiber optic accelerometers that use a variety of optical phenomena. Iris has been supplying fiber optic acceler‐ ometers for more than 5 years. However, the sensors ...
... endwinding vibration monitoring system using fiber optic accelerometers in the 1980s, and many machine manufacturers now supply fiber optic accelerometers that use a variety of optical phenomena. Iris has been supplying fiber optic acceler‐ ometers for more than 5 years. However, the sensors ...
Crct-dsn-home-ent-audio+EMC-100818
... in X5R or better material. • Use high-quality electrolytics as bulk decoupling caps in high-power circuits to give the needed capacitance in reasonably small volume. • These should be radial-lead parts, because selfinductance is lower than in axial parts. • They should be low-ESR caps with ripple cu ...
... in X5R or better material. • Use high-quality electrolytics as bulk decoupling caps in high-power circuits to give the needed capacitance in reasonably small volume. • These should be radial-lead parts, because selfinductance is lower than in axial parts. • They should be low-ESR caps with ripple cu ...
33-131-1-SP - International Journal of Advances in
... the capacitor C is periodically charged and discharged by a constant current that alternates its polarity. Magnitude of this current is directly proportional to the control voltage VC and this current is generated in the left part of the circuit (from the capacitor C). The control voltage regulates ...
... the capacitor C is periodically charged and discharged by a constant current that alternates its polarity. Magnitude of this current is directly proportional to the control voltage VC and this current is generated in the left part of the circuit (from the capacitor C). The control voltage regulates ...
Principles of Electronic Communication Systems
... Tuned Circuits Virtually all communications equipment contains tuned circuits made up of inductors and capacitors that resonate at specific frequencies. ...
... Tuned Circuits Virtually all communications equipment contains tuned circuits made up of inductors and capacitors that resonate at specific frequencies. ...
Slow Down or Sleep, that is the Question Abstract
... cover a wide range of real-world use-cases. This limits what can be learnt from this work about the practical potential for energy management. In 2002, Miyoshi et al. showed that the decrease in slack time resulting from running at a lower CPU frequency could offset any savings achieved by using DVF ...
... cover a wide range of real-world use-cases. This limits what can be learnt from this work about the practical potential for energy management. In 2002, Miyoshi et al. showed that the decrease in slack time resulting from running at a lower CPU frequency could offset any savings achieved by using DVF ...
Evaluates: MAX2620 MAX2620 Evaluation Kit ________________General Description ____________________________Features
... The resonator tank circuit is critical in determining VCO performance. It typically contains a varactor (voltagevariable capacitance) for voltage-tuning the center frequency. For best performance, use high-Q components and choose values carefully. The external resonant circuit on the MAX2620 EV kit ...
... The resonator tank circuit is critical in determining VCO performance. It typically contains a varactor (voltagevariable capacitance) for voltage-tuning the center frequency. For best performance, use high-Q components and choose values carefully. The external resonant circuit on the MAX2620 EV kit ...
1)______ types of Induction Motor are widely used. A. SlipringIM B
... B. series reactors& shunt capacitors C. Synchronous condensers D. Tap- changing Transformers 54) A compensated wattmeter has its reading corrected for error due to theA. Frequency B. friction C. power consumed in potential coil D. power consumed in current coil 55) A long wire composed of a smooth ...
... B. series reactors& shunt capacitors C. Synchronous condensers D. Tap- changing Transformers 54) A compensated wattmeter has its reading corrected for error due to theA. Frequency B. friction C. power consumed in potential coil D. power consumed in current coil 55) A long wire composed of a smooth ...
Aalborg Universitet A generic inertia emulation controller for multi-terminal VSC-HVDC systems
... transmission system provides constant frequency and voltage amplitude for the wind farm network. As long as the frequency and AC voltage amplitude are maintained constant, the power generated by the wind farm is automatically absorbed by the WVSC and transferred to the DC link [11]. The WVSC should ...
... transmission system provides constant frequency and voltage amplitude for the wind farm network. As long as the frequency and AC voltage amplitude are maintained constant, the power generated by the wind farm is automatically absorbed by the WVSC and transferred to the DC link [11]. The WVSC should ...
ac synchronous generators
... on the rotor (think North and South poles). The prime mover (mechanical engine) will then spin the rotor at what we will soon refer to as synchronous speed. The magnetic field sweeping past the stationary stator coils will induce voltages. This phenomenon is described by Faraday’s law, and was prese ...
... on the rotor (think North and South poles). The prime mover (mechanical engine) will then spin the rotor at what we will soon refer to as synchronous speed. The magnetic field sweeping past the stationary stator coils will induce voltages. This phenomenon is described by Faraday’s law, and was prese ...
Aspects on High Frequency Power Supplies for ESPs
... from the high-frequency current component has been estimated and found to be very low, < 0,2%. Three different aspects on efficiency and thermal management are presented. The dynamic conduction losses are analyzed and experimental results are presented for nine commercially available IGBT modules. T ...
... from the high-frequency current component has been estimated and found to be very low, < 0,2%. Three different aspects on efficiency and thermal management are presented. The dynamic conduction losses are analyzed and experimental results are presented for nine commercially available IGBT modules. T ...
Ultra-low power subthreshold current
... devices, respectively. As confirmed by measurement, the gain estimated by (2) is about 3.2. Also, it can be concluded from (2) that the circuit gain will improve by reducing the device slope factor. The powerdelay-product (PDP) of the proposed gate is in the sub-fJ-range, and three to five times sma ...
... devices, respectively. As confirmed by measurement, the gain estimated by (2) is about 3.2. Also, it can be concluded from (2) that the circuit gain will improve by reducing the device slope factor. The powerdelay-product (PDP) of the proposed gate is in the sub-fJ-range, and three to five times sma ...
a review approach of power grid analysis in vlsi designs
... increasing concern in semiconductor industry. According to data in [1], more than 50% of tape outs using 0.13-micron technology would fail, if the power distribution system were not validated beforehand. Lower operating voltages, increased device integration density and leakage currents, higher oper ...
... increasing concern in semiconductor industry. According to data in [1], more than 50% of tape outs using 0.13-micron technology would fail, if the power distribution system were not validated beforehand. Lower operating voltages, increased device integration density and leakage currents, higher oper ...
Network failure detection Failure detection
... The frequency resource is limited in Pakistan because many MW are used. So the mw may encounter frequency interference. Reason: The distance between two hops mw which use same or adjacent channel is short and the direction is same. Symptom: The mw equipment is ok and the RX power is good on both sit ...
... The frequency resource is limited in Pakistan because many MW are used. So the mw may encounter frequency interference. Reason: The distance between two hops mw which use same or adjacent channel is short and the direction is same. Symptom: The mw equipment is ok and the RX power is good on both sit ...
Utility frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency of the oscillations of alternating current (AC) in an electric power grid transmitted from a power plant to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains power around the world.During the development of commercial electric power systems in the late 19th and early 20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over the other and no apparent desire for complete worldwide standardization.Unless specified by the manufacturer to operate on both 50 and 60 Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.