EE2003 Circuit Theory
... 5.1 What is an Op Amp (1) • It is an electronic unit that behaves like a voltage-controlled voltage source. • It is an active circuit element designed to perform mathematical operations of addition, subtraction, multiplication, division, differentiation and integration. ...
... 5.1 What is an Op Amp (1) • It is an electronic unit that behaves like a voltage-controlled voltage source. • It is an active circuit element designed to perform mathematical operations of addition, subtraction, multiplication, division, differentiation and integration. ...
DS1314 3V Nonvolatile Controller with Lithium Battery Monitor
... drastically reduce the life of the battery. As a result, the DS1314 only tests the battery for one second out of every 24 hours and does not monitor the battery in any way between tests. If a good battery (one that has not been previously flagged with BW ) is removed between battery tests, the DS131 ...
... drastically reduce the life of the battery. As a result, the DS1314 only tests the battery for one second out of every 24 hours and does not monitor the battery in any way between tests. If a good battery (one that has not been previously flagged with BW ) is removed between battery tests, the DS131 ...
Liquid Crystal Displays
... • A liquid crystal has rod-like particles that all point in the same direction (more or less) • It is a milky liquid that forms when certain solids melt and becomes a normal clear liquid at some higher temperature – In an LCD, the thin layer of material used will remain a liquid crystal over a wide ...
... • A liquid crystal has rod-like particles that all point in the same direction (more or less) • It is a milky liquid that forms when certain solids melt and becomes a normal clear liquid at some higher temperature – In an LCD, the thin layer of material used will remain a liquid crystal over a wide ...
Experiment 1: Diode Current vs. Voltage Curves
... voltage drop of the LED is greater than 0.7V; usually on the order of 1.5 to 2 volts depending on the wavelength of the emitted light. The LED is also built in a special transparent package as shown in figure 3. ...
... voltage drop of the LED is greater than 0.7V; usually on the order of 1.5 to 2 volts depending on the wavelength of the emitted light. The LED is also built in a special transparent package as shown in figure 3. ...
erii18_servos - Cornerstone Robotics
... Quiz: Servos Review: o A servo motor is a motor that can be controlled to turn to a specified position. Typically, a servo is used in hobby applications such as controlling steering for an RC (radio-controlled) car or the rudder for an RC airplane. o Most servos (servo motors) have a position range ...
... Quiz: Servos Review: o A servo motor is a motor that can be controlled to turn to a specified position. Typically, a servo is used in hobby applications such as controlling steering for an RC (radio-controlled) car or the rudder for an RC airplane. o Most servos (servo motors) have a position range ...
MAX3316–MAX3319 2.5V, 1µA, 460kbps, RS-232-Compatible Transceivers General Description
... General Description The MAX3316–MAX3319 transceivers have a proprietary low-dropout transmitter output stage enabling RS-232compatible performance from +2.25V to +3.0V with a dual-charge pump. These devices require only four 0.1µF capacitors, and are guaranteed to operate at data rates up to 460kbps ...
... General Description The MAX3316–MAX3319 transceivers have a proprietary low-dropout transmitter output stage enabling RS-232compatible performance from +2.25V to +3.0V with a dual-charge pump. These devices require only four 0.1µF capacitors, and are guaranteed to operate at data rates up to 460kbps ...
A Grid Current-Controlling Shunt Active Power Filter
... is moving away from the sliding surface, and the CC-VSI loses its controllability. This means that zero crossing of the current error signal will not occur at the end of a half-switching period, since by definition, the system is controllable if there exists a (piecewise continuous) control signal t ...
... is moving away from the sliding surface, and the CC-VSI loses its controllability. This means that zero crossing of the current error signal will not occur at the end of a half-switching period, since by definition, the system is controllable if there exists a (piecewise continuous) control signal t ...
Pantograph disconnector type GW54, up to 550 kV Maximum
... Minimal maintenance Superior materials and rotating contacts for all joints used for components make disconnectors virtually maintenance free. Interlocking for reliability under extreme conditions In both end positions of the disconnector, the rotary arm is switched beyond the dead center point. The ...
... Minimal maintenance Superior materials and rotating contacts for all joints used for components make disconnectors virtually maintenance free. Interlocking for reliability under extreme conditions In both end positions of the disconnector, the rotary arm is switched beyond the dead center point. The ...
Transducers - Mitra.ac.in
... signal, are called the passive transducers. These transducers require external power source for energy conversion. In such transducer electrical parameters i.e. resistance, inductance or capacitance causes a change in voltages current or frequency of the external power source. For example, Resistive ...
... signal, are called the passive transducers. These transducers require external power source for energy conversion. In such transducer electrical parameters i.e. resistance, inductance or capacitance causes a change in voltages current or frequency of the external power source. For example, Resistive ...
Three Phase User Manual 16.7 - 50kVA
... The temperature should be near 25°C (77°F) for optimum battery performance. Batteries are less efficient at temperatures below 18°C (65°F), and high temperatures reduce battery life. Typically, at about 35°C (95°F), battery life is half of what it would be at a normal temperature of 25°C (77°F). At ...
... The temperature should be near 25°C (77°F) for optimum battery performance. Batteries are less efficient at temperatures below 18°C (65°F), and high temperatures reduce battery life. Typically, at about 35°C (95°F), battery life is half of what it would be at a normal temperature of 25°C (77°F). At ...
Telit_xE910_RTC_BackUp_Application_Note_r5
... While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein. The information in this document has been carefully checked and is believed to be ...
... While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein. The information in this document has been carefully checked and is believed to be ...
a low power low noise instrumentation amplifier
... Consequently, there has been the growing demand for low-noise and ultra lowpower, miniature ambulatory biopotential acquisition devices. This has necessitated extensive research in the design of such interfaces and the eventual objective is to be able to design a biopotential miniature recording sys ...
... Consequently, there has been the growing demand for low-noise and ultra lowpower, miniature ambulatory biopotential acquisition devices. This has necessitated extensive research in the design of such interfaces and the eventual objective is to be able to design a biopotential miniature recording sys ...
SP481E 数据资料DataSheet下载
... RS-485 allows up to 32 drivers and 32 receivers to be connected to a data bus, making it an ideal choice for multi-drop applications. Since the cabling can be as long as 4,000 feet, RS-485 transceivers are equipped with a wide (-7V to +12V) common mode range to accommodate ground potential differenc ...
... RS-485 allows up to 32 drivers and 32 receivers to be connected to a data bus, making it an ideal choice for multi-drop applications. Since the cabling can be as long as 4,000 feet, RS-485 transceivers are equipped with a wide (-7V to +12V) common mode range to accommodate ground potential differenc ...
The Membrane Time Constant and Firing Rate Dynamics
... Usually, g is sigmoidal, that is, a monotonic increasing, positive and saturating function (as in the popular choice of f = tanh V in Ref. 26). However, other functions have also been used (e,g, f / V 2 in Ref. 16). Such \ ring-rate models" incorporating a low-pass lter to capture the passive prope ...
... Usually, g is sigmoidal, that is, a monotonic increasing, positive and saturating function (as in the popular choice of f = tanh V in Ref. 26). However, other functions have also been used (e,g, f / V 2 in Ref. 16). Such \ ring-rate models" incorporating a low-pass lter to capture the passive prope ...
Electronics and Electrical instruments
... VAE/1 1200 VA for output (total 2400 VA) VAE/2 3200 VA for output (total 6400 VA). For both models: adjustable output dc voltage from 0 to 250 V; adjustable three phase output voltage from 0 to 400 V with possibility of single-phase use; on request other output voltage or powers. On request also not ...
... VAE/1 1200 VA for output (total 2400 VA) VAE/2 3200 VA for output (total 6400 VA). For both models: adjustable output dc voltage from 0 to 250 V; adjustable three phase output voltage from 0 to 400 V with possibility of single-phase use; on request other output voltage or powers. On request also not ...
AD7782 数据手册DataSheet下载
... resolution in bits (rounded to the nearest 0.5 LSB) for the two input voltage ranges. The numbers are typical and generated at a differential input voltage of 0 V. The peak-to-peak resolution figures represent the resolution for which there will be no code flicker within a six-sigma limit. The outpu ...
... resolution in bits (rounded to the nearest 0.5 LSB) for the two input voltage ranges. The numbers are typical and generated at a differential input voltage of 0 V. The peak-to-peak resolution figures represent the resolution for which there will be no code flicker within a six-sigma limit. The outpu ...
KA78M05 / LM78M05 / MC78M05 3-Terminal 0.5 A Positive Voltage Regulator Description
... EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are 2. A critical component in any component of a life support, device, or intended for surgical implant into the body or (b) support or sustain syste ...
... EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are 2. A critical component in any component of a life support, device, or intended for surgical implant into the body or (b) support or sustain syste ...
INSTRUCTIONS FOR
... When the scale of the value to be measured is unknown set the selector to the highest range available. Before rotating the range selector to change functions, disconnect test leads from the circuit under test. WARNING! Never perform resistance measurements on live circuits. Always be care ...
... When the scale of the value to be measured is unknown set the selector to the highest range available. Before rotating the range selector to change functions, disconnect test leads from the circuit under test. WARNING! Never perform resistance measurements on live circuits. Always be care ...
A Low-Noise Self-Calibrating Dynamic Comparator for
... but also input transistors of the second latch stage. Therefore, the comparator sensitivity is improved by increasing the gain of the second latch stage. Moreover, the clock driving requirements are relaxed because the proposed comparator requires only a one phase clock. M12 and M13 are used to rese ...
... but also input transistors of the second latch stage. Therefore, the comparator sensitivity is improved by increasing the gain of the second latch stage. Moreover, the clock driving requirements are relaxed because the proposed comparator requires only a one phase clock. M12 and M13 are used to rese ...
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.