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Electric Charge and Current
Electric Charge and Current

... c. How much energy would this lamp use in 1 hour? 2. A colour television set is rated at 300 W. a. Calculate the current drawn by the television when connected to the 230 V mains supply. b. How much energy would this television use if it was left on overnight for 8 hours? 3. Using the equations V = ...
Single-Ended vs Differential Output Voltage Swing
Single-Ended vs Differential Output Voltage Swing

Active Components
Active Components

... N-channel MOSFET pair and an ALD1117 Pchannel MOSFET pair in on a single package and is a low drain current, low leakage version of the ALD1103 matched pairs. The transistor pairs offer high input impedance of 1013 Ω, a negative current (IDS) temperature coefficient and is matched for minimum offset ...
Substation Tranisents and Solid State Controls
Substation Tranisents and Solid State Controls

... When the switch begins to open, a very small arcing plasma is generated between the contacts which effectively completes the circuit even though the contacts are moving apart. As the contacts move, this arc plasma lengthens, cools, and extinguishes. The dc current is suddenly chopped and the low fre ...
CDR Presentation
CDR Presentation

... 1. Initialize serial connection on the Arduino using serial libraries 2. Accumulated values from calsBurned and sessionTime are padded with zeros 3. Resulting values are formatted into a single string packet. The resulting string is now ready for transmitting. 4. The string is then sent over serial ...
current - Actec A/S
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DTMF decoder
DTMF decoder

... The HT9170 series tone decoders consist of three band pass filters and two digital decode circuits to convert a tone (DTMF) signal into digital code output. The pre-filter is a band rejection filter which reduces the dialing tone from 350Hz to 400Hz. The low group filter filters low group frequency ...
JRW 70A single output series
JRW 70A single output series

... The JRW-series dc-dc converters are a new generation of DC/DC power modules designed for optimum efficiency and power density. The JRW provides up to 70A output current in an industry standard half brick, which makes it an ideal choice for small space, high current and low voltage applications. The ...
TT 50-SD
TT 50-SD

Powador 36.0 TL3 M1 39.0 TL3 M1 Data sheet
Powador 36.0 TL3 M1 39.0 TL3 M1 Data sheet

IS31AP4912
IS31AP4912

... Copyright © 2015 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any  time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herei ...
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... 38. What electronic elements are found inside a vacuum tube? ...
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KSC233 4 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings
KSC233 4 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings

... 2. A critical component is any component of a life support which, (a) are intended for surgical implant into the body, device or system whose failure to perform can be or (b) support or sustain life, or (c) whose failure to perform reasonably expected to cause the failure of the life support when pr ...
BD175/ 177/ 179 NPN Epitaxial Silicon Transistor
BD175/ 177/ 179 NPN Epitaxial Silicon Transistor

Muddiest Points Week 2
Muddiest Points Week 2

... Questions: The most confusing part for me was what direction to put the + and - for the current arrows. I asked you in class today and you really helped me figure it out, as far as it is originally a guess and that it could be wrong and that will be shown with our KVL calculations. The most confusin ...
Rectifier: It is a circuit which employs one or more diodes to convert
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Abstract
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... trip the comparator for a time of about 3 or 4 cycles, then carrier is no longer present and OCD goes low. The logic-level FSK out of the first comparator is applied to a logic block that generates a high level if a frequency below 1700 Hz is present and a low level if a frequency above 1700 Hz is ...
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ultra sonic range finder ( mini radar)
ultra sonic range finder ( mini radar)

... The 40 kHz transmitter is connecting directly to pins RA0 and RA1 on the AT89S52. The AT89S52 oscillates at a frequency of 40 kHz between high and low on RA0 and low and high on RA1. This produces a 40kHz square wave with a peak to peak voltage of about 10 volts. This signal is transmitted for appro ...
The Zen Variations - Part 2
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NGA-286 Product Description DC-6000 MHz, Cascadable GaAs HBT MMIC Amplifier
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... Max. Device Current (ID) ...
In your lab journal, provide a detailed circuit analysis that shows that
In your lab journal, provide a detailed circuit analysis that shows that

Flex
Flex

... current than the rated value at 60°C. In this way FLEX! guarantee the selective protection of individual output lines In x 1.5 Example in previous slide: Flex28024A can supply a continuous load of 10A (@ 40°C). In case of overload, it will deliver up to 15A and keep the output voltage within -10% of ...
Wkshp_WECC-0100 LMTF Update_030816
Wkshp_WECC-0100 LMTF Update_030816

... regulatory need, and some entities allowing 8% voltage deviation for shunt reactive power device switching after an outage. – For P2-P7 events it was concluded by the SDT it would be acceptable to not have voltage deviation criteria that is more stringent than steady state voltage criteria in requir ...
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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.
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