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lab sheet - Faculty of Engineering
lab sheet - Faculty of Engineering

MAX17242/MAX17243 3.5V–36V, 2A/3A, Synchronous Buck
MAX17242/MAX17243 3.5V–36V, 2A/3A, Synchronous Buck

... The devices operate with input voltages from 3.5V to 36V while using only 15µA quiescent current at no load. The switching frequency is resistor programmable from 220kHz to 2.2MHz and can be synchronized to an external clock. The devices’ output voltage is available as 5V/3.3V fixed or adjustable fr ...
BD9848FV
BD9848FV

MIL EMI and Transient Solutions
MIL EMI and Transient Solutions

... If we measure the conducted emissions using a LISN we would see a value of only slightly less than 1.3V. Our source impedance is still relatively low with respect to 50 ohms. i.e. 1.3 Vocv, Isc 0.29 A = 4.5 ohms. Our target voltage measurement value is 1 mV, we only need 63 db of additional attenuat ...
OPA602 High-Speed Precision Difet OPERATIONAL AMPLIFIER
OPA602 High-Speed Precision Difet OPERATIONAL AMPLIFIER

... DATA CONVERSION ...
URE 422 e
URE 422 e

MINISTRY OF SCIENCE AND TECHNOLOGY  DEPARTMENT OF TECHNICAL AND VOCATIONAL EDUCATION
MINISTRY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF TECHNICAL AND VOCATIONAL EDUCATION

... A voltage source Vm cos ωt, a resistor R, and a capacitor C are all in series. (a) Write an integrodifferential equation in terms of the loop current i and then differentiate it to obtain the differential equation for the circuit, (b) Assume a suitable general form for the forced response i(t),subst ...
California Instruments BPS Series 30–180 kVA 150–400 V 0–400 A
California Instruments BPS Series 30–180 kVA 150–400 V 0–400 A

... The BPS Series consists of multiple high power AC power systems that provide controlled AC output for ATE and product test applications. This high power AC test system covers a wide spectrum of AC power applications at an affordable cost. Using state-of-the-art PWM switching techniques, the BPS Seri ...
experiment 5 - UniMAP Portal
experiment 5 - UniMAP Portal

... Note: The value of E3-15 will not be exactly zero volts because of small imbalances in the three-phase line voltages. It is more than 5V, the winding connections have to be checked carefully. 8. When the winding connections are confirmed to be correct, close the delta on the secondary side of the tr ...
instructions for authors - Electrical and Computer Engineering
instructions for authors - Electrical and Computer Engineering

26_AP1-CATV_AMP
26_AP1-CATV_AMP

... Although the AP1-1xx is a 10dB amplifier, it has a real gain of 11 to 12dB. This is to provide extra gain to compensate for additional signal loss through filters, DC Blocks, isolators or higher-insertion-loss splitters. Apart from the extra gain, our AP1-1xx can boast of excellent specification par ...
Chapter 19: Current, resistance, circuits What will we learn in this
Chapter 19: Current, resistance, circuits What will we learn in this

... than insulators. These numbers depend on temperature… ...
W.E.A.R. - Wireless Energy Autonomous Robot Blake Emerton
W.E.A.R. - Wireless Energy Autonomous Robot Blake Emerton

... for line tracking and color detection is what is going to be used for this project. It requires a 3.7 volt input and a 140 mA current to operate. It is also equipped with a STM32F427VGT6 cortex m4f MCU which allows it to behave like a microprocessor. It can communicate with another microcontroller v ...
TBD62783A
TBD62783A

... a Bridge Tied Load (BTL) connection-type IC that inputs output DC voltage to a speaker directly. ...
see Figure 4
see Figure 4

INA138-Q1, INA168-Q1
INA138-Q1, INA168-Q1

... Quiescent current is only 25 μA, which permits connecting the power supply to either side of the current-measurement shunt with minimal error. The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets an ...
ELECTRICAL AND COMPUTER SYSTEM DESIGN COURSE
ELECTRICAL AND COMPUTER SYSTEM DESIGN COURSE

PTD1 - Faculty of Engineering
PTD1 - Faculty of Engineering

RG3 - T4 - Siemens
RG3 - T4 - Siemens

... The actual value of the generator voltage is compared with an adjustable generator voltage setpoint. The resulting signal is compared with the output of the excitation limiter and taken to the input of the PI voltage controller. The PI voltage controller with adjustable gain and time response provid ...


diodelab
diodelab

... value of the current I). Because the ideal diode curve becomes exponentially steep at high currents, Vdiode changes very little with I in this high-current range. Hence the measured differential slope dV/dI on a linear plot of Vmeas versus I in this high-current range gives a reasonable estimate of ...
Operating Manual
Operating Manual

... Uf251_01d_oi_e.doc / Aug-16 ...
Computer Netwroks
Computer Netwroks

lab sheet - Faculty of Engineering
lab sheet - Faculty of Engineering

... which the capacitor must supply to regulate the voltage, is not easy to calculate. In this experiment, we shall determine the reactive power (the value of capacitor) by trial and error, adjusting the capacitors until the receiving-end voltage is approximately equal to the sendingend voltage. For loa ...
NCN5150NGEVB NCN5150 Evaluation Board User's Manual
NCN5150NGEVB NCN5150 Evaluation Board User's Manual

... can support up to 2 UL, while the QFN version can support up to 6 UL. The required resistors for are shown in table xx. Also shown in table xx is the maximum amount of capacitance allowed on the STC pin. This limit will ensure that the transceiver will start up in less than 3 s as required by the M- ...
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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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