2.5.3 Station Blackout Alternate AC Source 1.0 Description
... safe shutdown condition during non design basis accident station blackout conditions. ...
... safe shutdown condition during non design basis accident station blackout conditions. ...
Proposed Approach for Driving EO Phase Modulators
... Determining the Driving Requirements • This work investigated the feasibility of using a function generator and amplifier to drive an EO phase modulator. As evaluating this approach required driving the modulator to several different modulation depths, we chose a maximum peak-to-peak driving voltag ...
... Determining the Driving Requirements • This work investigated the feasibility of using a function generator and amplifier to drive an EO phase modulator. As evaluating this approach required driving the modulator to several different modulation depths, we chose a maximum peak-to-peak driving voltag ...
Capture range control mechanism for voltage controlled oscillators
... [0024] The resistor 46 can be placed off chip to eliminate any dependence on manufacturing tolerances in the fabri cation of integrated circuits. Such a resistor is shoWn in FIG. 5a. In this case, the main portion of the gain adjust circuit is integrated on a monolithic chip With the voltage control ...
... [0024] The resistor 46 can be placed off chip to eliminate any dependence on manufacturing tolerances in the fabri cation of integrated circuits. Such a resistor is shoWn in FIG. 5a. In this case, the main portion of the gain adjust circuit is integrated on a monolithic chip With the voltage control ...
electronic instrumentation & plc dkt314
... DC system. • Transducer can be variable resistance or variable inductance types. • Bridge circuit for modulating the amplitude of the output from the transducer stage. • The signal is then amplified and demodulated before pass through the low pass filter. ...
... DC system. • Transducer can be variable resistance or variable inductance types. • Bridge circuit for modulating the amplitude of the output from the transducer stage. • The signal is then amplified and demodulated before pass through the low pass filter. ...
resistance - the SASPhysics.com
... temperature – positive ions vibrate more and scatter the conduction electrons so they do not pass as easily – This is a positive temperature coefficient ...
... temperature – positive ions vibrate more and scatter the conduction electrons so they do not pass as easily – This is a positive temperature coefficient ...
(with R 2 and R 3 )?
... 1) A hot lightbulb has a much higher resistance 2) A light bulb usually fails just when switched on because the resistance is small and the current high, and thus the power delivered high (P=I2R) In the demos shown in this lecture, all lightbulbs have the same resistance if at the same temperature, ...
... 1) A hot lightbulb has a much higher resistance 2) A light bulb usually fails just when switched on because the resistance is small and the current high, and thus the power delivered high (P=I2R) In the demos shown in this lecture, all lightbulbs have the same resistance if at the same temperature, ...
Series and Parallel Resistors
... compare. Note whether the measured values are larger or smaller than the calculated ones. This is a good way to determine whether the differences are due to a systematic error or to some random process. If all the calculated values are larger than the measured ones, this suggests a systematic error, ...
... compare. Note whether the measured values are larger or smaller than the calculated ones. This is a good way to determine whether the differences are due to a systematic error or to some random process. If all the calculated values are larger than the measured ones, this suggests a systematic error, ...
A Sub 1-V Constant Gm–C Switched
... the differential pair. As a practical matter, good results are obtained even if the bias points are not identical. Of course there are countless ways of using feedback and transistors biased at different current densities to produce this same type of result. One advantage of the topology in Fig. 4 i ...
... the differential pair. As a practical matter, good results are obtained even if the bias points are not identical. Of course there are countless ways of using feedback and transistors biased at different current densities to produce this same type of result. One advantage of the topology in Fig. 4 i ...
Direct ZVS start-up of a current
... Fig. 3(a) shows a typical PSpice simulation for a resonant inis verter with the data shown in Table I. Here the dc supply assumed to be a step input while the switches in both legs S1 and S2 are controlled to be on for a period of 200 s (which is much larger than half the switching period of about 5 ...
... Fig. 3(a) shows a typical PSpice simulation for a resonant inis verter with the data shown in Table I. Here the dc supply assumed to be a step input while the switches in both legs S1 and S2 are controlled to be on for a period of 200 s (which is much larger than half the switching period of about 5 ...
DC Current Source AC and DC Current Source
... with exceptionally low current noise. Low current sourcing is critical to applications in test environments ranging from R&D to production, especially in the semiconductor, nanotechnology, and superconductor industries. High sourcing accuracy and built-in control functions make the Models 6220 and 6 ...
... with exceptionally low current noise. Low current sourcing is critical to applications in test environments ranging from R&D to production, especially in the semiconductor, nanotechnology, and superconductor industries. High sourcing accuracy and built-in control functions make the Models 6220 and 6 ...
Direct current voltage increment due to ac coupling in a high Tc
... cross section of 1.5 mm2. At 77 K it has an inductance of 17 mH and a critical current ~1 mV/cm criterion! of 22.2 A, yielding a stored energy of 4.2 J. An ac signal, generated by amplifying a sine wave from a multifunction synthesizer, is coupled into the HTS coil using a 1:1 transformer. The relat ...
... cross section of 1.5 mm2. At 77 K it has an inductance of 17 mH and a critical current ~1 mV/cm criterion! of 22.2 A, yielding a stored energy of 4.2 J. An ac signal, generated by amplifying a sine wave from a multifunction synthesizer, is coupled into the HTS coil using a 1:1 transformer. The relat ...
OL2068 - Quantum Devices, Inc.
... The main contents of this new CMOS power line driver are four identical blocks (systems A to D) with each a CMOS/TTL Schmitt Trigger Input and high power differential buffered and inverted outputs. With the low active ENABLE pin it is possible to switch off all eight outputs (high-impedance state), ...
... The main contents of this new CMOS power line driver are four identical blocks (systems A to D) with each a CMOS/TTL Schmitt Trigger Input and high power differential buffered and inverted outputs. With the low active ENABLE pin it is possible to switch off all eight outputs (high-impedance state), ...
CA3240, CA3240A - Experimentalists Anonymous
... It is well known that MOSFET devices can exhibit slight changes in characteristics (for example, small changes in input offset voltage) due to the application of large differential input voltages that are sustained over long periods at elevated temperatures. Both applied voltage and temperature acce ...
... It is well known that MOSFET devices can exhibit slight changes in characteristics (for example, small changes in input offset voltage) due to the application of large differential input voltages that are sustained over long periods at elevated temperatures. Both applied voltage and temperature acce ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.