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GR3412151231
GR3412151231

Datasheet - Texas Instruments
Datasheet - Texas Instruments

Time Resolved In Situ T Measurements of 6.5kV IGBTs during Inverter Operation
Time Resolved In Situ T Measurements of 6.5kV IGBTs during Inverter Operation

... combination with simulations of the generated losses. Also the simulation of the temperature ripple shows a typical curve [1]. In this work theoretical predictions for the junction temperature are compared with experimental findings. The following four different methods are used to measure the Tvj d ...
Focus Catalog - Bel Fuse Inc.
Focus Catalog - Bel Fuse Inc.

... • Power good signal • Fixed switching frequency ...
TLP2361 - Toshiba America Electronic Components
TLP2361 - Toshiba America Electronic Components

... in this document, and related hardware, software and systems (collectively "Product") without notice. • This document and any information herein may not be reproduced without prior written permission from TOSHIBA. Even with TOSHIBA's written permission, reproduction is permissible only if reproducti ...
Description ZXGD3102T8
Description ZXGD3102T8

... MOSFET driver stage and current is sourced out of the GATEH pin. The turn on time of the MOSFET can be programmed through an external resistor RG. Refer to “Speed vs. Gate resistance” graph. 4. The current out of the GATEH pin is sourced into the OR’ing MOSFET Gate to turn the device on. 5. The GATE ...
National 5 Physics Electricity
National 5 Physics Electricity

... The voltmeter must be connected in parallel because it is measuring the difference in electrical potential between two points. The ammeter must be connected in series because it is measuring the flow of current THROUGH a component or circuit. The two main rules are: 1. To find the potential differen ...
installer`s reference xtant technologies
installer`s reference xtant technologies

... be sampled to determine the optimum load setting. ...
Subscriber line interface circuit
Subscriber line interface circuit

... All the STLC3080 relay drivers are open drain with the source connected to the RGND pin. Each relay drivers integrates a protection structure that allows to avoid external kick - back diodes, using both 5V or 12V relays. The ring trip circuit and its behaviour is described in Appendix D. ...
Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB-1a
Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB-1a

... R4 The ISO must establish exceptions for a generating unit or aggregated generating facility from complying with directives in requirements R5 and R8 which such exceptions are contained in Appendix 1 of this reliability standard. R4.1 The ISO must maintain a list of generating units and aggregated g ...
t/⊿R
t/⊿R

... they are properly aged before use ( less than 0.1% drift in resistance during periods of months). Thermistors exhibit great temperature sensitivity (up to ten times the sensitivity of the usual base-metal thermocouples), whereas thermistor response can be in the order of milliseconds . The practical ...
1. The following questions refer to the waveform shown below. a
1. The following questions refer to the waveform shown below. a

... a. How many cycles of the waveform are shown in this diagram? b. What is the waveform’s period? c. What is the waveform’s frequency? d. What is the waveform’s angular frequency? e. What is the waveform’s amplitude? f. What is the waveform’s peak-to-peak value? g. What is the waveform’s instantaneous ...
Single Photon Avalanche Diodes: Towards the Large Bidimensional Arrays
Single Photon Avalanche Diodes: Towards the Large Bidimensional Arrays

... pF. The diode resistance Rd depends on the semiconductor device structure, and is of the order of some hundred of Ωs. Avalanche triggering corresponds to closing the switch in the diode equivalent circuit. The avalanche current discharges the capacitance so that diode voltage and diode current expon ...
MAX2150 Wideband I/Q Modulator with Sigma-Delta Fractional-N Synthesizer General Description
MAX2150 Wideband I/Q Modulator with Sigma-Delta Fractional-N Synthesizer General Description

... summed together, and the undesired sideband is suppressed. The I+, I-, Q+, and Q- input ports feature high-linearity buffer amplifiers with a typical -3dB bandwidth of 75MHz and accept differential input voltages up to 1VP-P. The ports require external biasing and have an input common-mode requireme ...
"The design of sigma-delta modulation analog-to-digital converters,"
"The design of sigma-delta modulation analog-to-digital converters,"

Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB-1a
Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB-1a

... R4.2 The ISO must notify each legal owner of a generating unit and legal owner of an aggregated generating facility when any of its generating units or aggregated generating facilities are included on the list referred to in requirement R4.1. R5 The ISO must issue directives or instructions to the o ...
3355LectureSet07v24
3355LectureSet07v24

ECE 310 - Course Website Directory
ECE 310 - Course Website Directory

... Note: Connection introduces a 30 degree phase shift! Common for transmission/distribution step-down since there is a neutral on the low voltage side. Even if a = 1 there is a sqrt(3) step-up ratio ...
Reducing EMI in buck converters
Reducing EMI in buck converters

4 Point Starter
4 Point Starter

... in safeguarding the armature of the shunt or compound excited DC motor against the high starting current produced in the absence of back emf at starting. The 4 point starter has a lot of constructional and functional similarity to a three point starter, but this special device has an additional poin ...
DAC712 数据资料 dataSheet 下载
DAC712 数据资料 dataSheet 下载

... analog output from a straight line drawn between the end points of the transfer characteristic. ...
1-Front-Abstract
1-Front-Abstract

... The third part deals with the fabrication and optimization of gate dielectrics. Here we have demonstrated organic field effect transistors (OFETs) with photo-patternable, solution processed, nanoparticle composite high-k gate dielectric layer. The dielectric layer consists of Barium Titanate (BT) n ...
MAX2160EVKIT.pdf
MAX2160EVKIT.pdf

... 7) Adjust potentiometers R16 and R17 until the voltages at GC1 and GC2 are approximately 1.5V. 8) Install and run the MAX2160 control software. Software is available for download on the Maxim website at www.maxim-ic.com. 9) Load the default register settings from the control software by clicking the ...
MAX6351–MAX6360 Dual/Triple-Voltage µP Supervisory Circuits General Description
MAX6351–MAX6360 Dual/Triple-Voltage µP Supervisory Circuits General Description

... Selector Guide appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1 ...
TD001006EN
TD001006EN

... inputs shall be compatible with standard reverse polarity supervision of circuit wiring by a Fire Alarm Control Panel (FACP) with the ability to operate from 16 to 33 VDC. All speaker strobes shall be designed for a field selectable input of either 25 or 70 VRMS, with selectable power taps from 1/8 ...
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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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