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vxr100-2800s series
vxr100-2800s series

Lesson 26
Lesson 26

New CMOS Realization of Voltage Differencing Buffered Amplifier
New CMOS Realization of Voltage Differencing Buffered Amplifier

... proposed biquad filter contains two VDBAs and two capacitors and generates all filter functions (low-pass (LP), band-pass (BP), high-pass (HP), band-stop (BS) and allpass (AP)), but this topology needs inverting type input voltage signal for the employed AP filters. The second proposed biquad filter ...
Heritage Institute of Technology
Heritage Institute of Technology

... 1. A circuit consists of a resistance of 6Ω, inductance of 0.4H and a variable capacitance across 100V, 50Hz supply. Find out i) value of capacitance at resonance, ii) voltage drop across capacitor, iii) Q factor. 2. A coil of resistance 10Ω and inductance of 0.02H is connected in series with anothe ...
Chapter 21 - UET Taxila
Chapter 21 - UET Taxila

RT8238A - Richtek Technology
RT8238A - Richtek Technology

OC Series - Haefely Hipotronics
OC Series - Haefely Hipotronics

... features provided in these power supplies including input and backup breakers, adjustable overload relay (10-110% of rated current), fast overload sensor, zero-start interlock plus provision for external safety interlock, current-limiting resistor in output circuit, output shorting solenoid (and/or ...
Electric Current - Eleanor Roosevelt High School
Electric Current - Eleanor Roosevelt High School

CW-High Surge - Wirewound Resistors, High Surge
CW-High Surge - Wirewound Resistors, High Surge

... (1.2 μs/50 μs) as shown below at an ambient temperature of 25 °C. *IEC This U datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. For example, parts with lead (Pb) terminations are not RoHS-compliant. Please see the information/tables in this ...
Hi-Rel 60 V - 0.6 A PNP bipolar transistor
Hi-Rel 60 V - 0.6 A PNP bipolar transistor

Spice - kahrbjy
Spice - kahrbjy

... “SPICE2: A Computer Program to Simulate Semiconductor Circuits”.  It was originally written in FORTRAN and it became the industry standard for circuit analysis.  Commercial versions such as PSPICE by MicroSim Corporation use the same algorithm and syntax as SPICE but provide the technical support ...
slide set 4
slide set 4

Name:
Name:

... A real circuit diagram is made to look like reality (boxes, wires, light bulbs, etc). This type of diagram must be drawn as you perform the lab – not at home later. You don’t always have to connect your wires exactly as shown in the lab manual, as long as you have set up the circuit correctly (serie ...
Aalborg Universitet
Aalborg Universitet

AMS1510 数据手册DataSheet 下载
AMS1510 数据手册DataSheet 下载

... Voltage drops due to RP are not eliminated; they will add to the dropout voltage of the regulator regardless of whether they are inside or outside the regulation loop. The AMS1510 can control the voltage at the load as long as the input-output voltage is greater than the total of the dropout voltage ...
SECTION 13 - Voltage Multipliers, Inc.
SECTION 13 - Voltage Multipliers, Inc.

Question Bank
Question Bank

EKT112 - UniMAP Portal
EKT112 - UniMAP Portal

... Kirchhoff laws (cont…) Analysis of a circuit. General rules: 1. Identify every loop which does not contain another loop (such a loop is called mesh). Assign a current for every loop. The current direction can be chosen arbitrary. This step ensures that the Kirchhoff’s current law is automatically s ...
AN15 - Circuitry for Single Cell Operation
AN15 - Circuitry for Single Cell Operation

3-28 Circuits, Current and Potential, Capacitors
3-28 Circuits, Current and Potential, Capacitors

... capacitor, leaves the other. Capacitors in series will always have Current will the same charge on flow until the them. (what goes sum of the around, comes voltages across around) the capacitors equals the This is true even if battery they are not of voltage. equal capacitance! (loop rule) ...
Lesson Plan
Lesson Plan

... 1. The unit of electrical pressure is the _____________. 2. The unit of electrical current is the _____________. 3. The unit of electrical resistance is the _____________. 4. The current in a circuit is (a) _____________ proportional to the applied voltage. (b) _____________ proportional to the resi ...
MLA-2500B Tube Conversion
MLA-2500B Tube Conversion

LM3100 SIMPLE SWITCHER® Synchronous
LM3100 SIMPLE SWITCHER® Synchronous

Spring 2011 Midterm Review Answers
Spring 2011 Midterm Review Answers

GMW360A Sin/Cos to Analog Interpolator IC
GMW360A Sin/Cos to Analog Interpolator IC

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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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