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Switching losses and snubber circuit
Switching losses and snubber circuit

... Finite current conduction capability with small forward voltage drop ...
MAX764/MAX765/MAX766 -5V/-12V/-15V or Adjustable, High-Efficiency, Low I DC-DC Inverters
MAX764/MAX765/MAX766 -5V/-12V/-15V or Adjustable, High-Efficiency, Low I DC-DC Inverters

... highly efficient at heavy loads. Yet because they are PFM devices, they use less than 120µA of supply current (vs. 2mA to 10mA for a PWM device). The input voltage range is 3V to 16V. The output voltage is preset at -5V (MAX764), -12V (MAX765), or -15V (MAX766); it can also be adjusted from -1V to - ...
module2 - SNGCE DIGITAL LIBRARY
module2 - SNGCE DIGITAL LIBRARY

AVOP-ELEKTRO-BER-003
AVOP-ELEKTRO-BER-003

... The resistor R2 looks like a voltage source having a voltage of 10 V, with its positive left end „virtually“ grounded. If its positive left end is grounded, then the other end, which is more negative, must be „under ground“. We can conclude that the output voltage V2 is 10 V and negative. VR2 = 10 V ...
Inductors
Inductors

... moving but not when it is at rest. The current flows in opposite directions when the magnet enters and leaves the coil, i.e. a.c. is generated. The result is the same if the coil is moved towards and away from the stationary magnet. We say that a voltage has been induced in the coil because the magn ...
Evaluates: MAX1856 MAX1856 Evaluation Kit SLIC Power Supply General Description
Evaluates: MAX1856 MAX1856 Evaluation Kit SLIC Power Supply General Description

... can supply up to 400mA. The input voltage may range from +8V to +24V. The circuit can be configured for -48V, and supply up to 200mA. When operating from a +5V input supply, the circuit can deliver up to 7.2W output power in either configuration. The MAX1856 EV kit switching frequency is set at 250k ...
MIC23031 - Microchip
MIC23031 - Microchip

... NMOS acts as an ideal rectifier that conducts when the PMOS is off. Using a NMOS switch instead of a diode allows for lower voltage drop across the switching device when it is on. The asynchronous switching combination between the PMOS and the NMOS allows the control loop to work in discontinuous mo ...
124-04_EM_of_electron
124-04_EM_of_electron

... 1) Turn on the low and high voltage boxes and adjust them so that the high voltage box has at least a 100V reading and the low voltage box has a 1A reading. If you can’t adjust the current on the low voltage box try turning the knob on the Helmholtz box labeled “CURRENT ADJ”. 2) WAIT. The voltage s ...
Electronic-Devices-and-Circuit-Theory-10th-Edition-Boylestad
Electronic-Devices-and-Circuit-Theory-10th-Edition-Boylestad

MC2833
MC2833

... ·ISAHAYA Electronics Corporation assumes no responsibility for any damage, or infringement of any third party's rights, originating in the use of any product data, diagrams, charts or circuit application examples contained in these materials. ·All information contained in these materials, including ...
LM555 LM555C Timer - Elektronik
LM555 LM555C Timer - Elektronik

... for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and duty cycle are accurately controlled with two external resistors and one capaci ...
LM555/LM555C Timer
LM555/LM555C Timer

... for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and duty cycle are accurately controlled with two external resistors and one capaci ...
The Wein-Bridge Oscillator - Electrical and Computer Engineering
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MiniPro - Telephone Switching International
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... Impedance: OUTPUT Designed to drive 100 Ohms balanced span Automatic Equalization: Automatic compensation for line loss between 0 dB and -36 dB at 772kHz Lightning Protection: Included 1010-01 3-element gas tube protector Secondary Lightning Protection: Diode resistor network withstands ± 2500 V / 2 ...


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... provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI produ ...
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AP8803 Description Features Pin Assignments Typical Applications

Encoder 101: Selecting the Right Output
Encoder 101: Selecting the Right Output

... output; in other words, whatever voltage is input to the encoder, that same voltage will be output (minus a small amount to account for encoder power requirements). Another notable feature of the 7272 is its temperature protective function. If the 7272 is being driven at its limits (high load, upper ...
Encoder 101: Selecting the Right Output
Encoder 101: Selecting the Right Output

... output; in other words, whatever voltage is input to the encoder, that same voltage will be output (minus a small amount to account for encoder power requirements). Another notable feature of the 7272 is its temperature protective function. If the 7272 is being driven at its limits (high load, upper ...
quint-ps-100-240ac/24dc/5
quint-ps-100-240ac/24dc/5

... connection terminal blocks and can be loaded with 40 mA maximum. This signal output indicates that the output voltage has fallen more than 10% below the set value when "active high" changes to "low". The DC OK signal is isolated from the power output. This ensures that a separate supply does not ent ...
2013
2013

... Derive an expression for its output voltage in terms of Maximum voltage E m, firing angle α and overlap angle µ. 5. For a three-phase, thyristor-controlled half wave rectifier, with resistive load. Show that he average output voltage is given by ...
Y.MG325/452 Universal bipolar constant potential X-ray systems YXLON.Products
Y.MG325/452 Universal bipolar constant potential X-ray systems YXLON.Products

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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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