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List of Electrical and Physical Parameters for Transmission
List of Electrical and Physical Parameters for Transmission

Data Sheet 85001-0369 -- 202 Synchronized Strobe - D
Data Sheet 85001-0369 -- 202 Synchronized Strobe - D

... 202 Series strobes are designed for 16 to 33 Vdc operation and must be connected to signal circuits that output a constant (not pulsed) voltage. A diode is used to allow full signal circuit supervision and polarized connections are made to terminals that accept up to #12 AWG (2.5mm²) wire. The 203 S ...
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TPS65137 数据资料 dataSheet 下载

... JEDEC-standard test exists, but a close description can be found in the ANSI SEMI standard G30-88. The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB temperature, as described in JESD51-8. The junction-to-top charact ...
50 ohm Resistor - Bruck Lighting
50 ohm Resistor - Bruck Lighting

... requires (2) resistors due to 2X300W circuits. ...
Lab 2: Resistance, Current, and Voltage
Lab 2: Resistance, Current, and Voltage

TPA2000D1-Q1 数据资料 dataSheet 下载
TPA2000D1-Q1 数据资料 dataSheet 下载

... improved efficiency and SNR. It also allows the device to be connected directly to the speaker without the use of the LC output filter commonly associated with class-D amplifiers (this results in EMI which must be shielded at the system level). These features make the device ideal for use in devices ...
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electric circuit

Current, Resistance, and Electromotive Force
Current, Resistance, and Electromotive Force

Power Electronics Viva
Power Electronics Viva

21111014 Draft 2 PN-3-4963
21111014 Draft 2 PN-3-4963

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IGBT Die - ON Semiconductor

... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent ...
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BDTIC C C M - P F C

... The ICE3PCS02G is a 8-pins control IC for power factor correction converters. It is suitable for wide range line input applications from 85 to 265 VAC with overall efficiency above 90%. The IC supports converters in boost topology and it operates in continuous conduction mode (CCM) with average curr ...
DC786 - LTC4260CGN Evaluation Kit Quick Start Guide
DC786 - LTC4260CGN Evaluation Kit Quick Start Guide

... Space is provided for up to three 2010 surface mount sense resistors, and a TO-247 (TO-3P) MOSFET. This allows modification of the board for higher current applications. There is more copper between +48V INPUT and +48V/5A OUTPUT than the turrets and a TO-247 can handle. The limitation is at the sour ...
influence of presowing ion-ozone cavitational processing and air
influence of presowing ion-ozone cavitational processing and air

... cycle the load can be operated as source. In this the circuit will operate as a boost converter which will improve the DC voltage by using isolation transformer and inductor which can be phase shifted. This circuit can operate in two types such as buck and boost operations. In forward operation one ...
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Up to 2 A step-down switching regulator for automotive applications

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Low Power Extended Range DC Motor Controller

... that is going through the armature. The armature resistance of the motor is known and can be measured by connecting the terminals of the motor into an ohmmeter. We thus obtained a value of Ra ≈ 1Ω. Although the armature resistance is not constant for the motor, it is approximated to 1 ohm as it usua ...
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MAX9115 Single LVDS Line Receiver in SC70 General Description Features

... LVDS is intended for point-to-point communication over a controlled-impedance medium as defined by the ANSI TIA/EIA-644 and IEEE 1596.3 standards. LVDS uses a lower voltage swing than other common communication standards, achieving higher data rates with reduced power consumption while reducing EMI ...
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Prototype line-scan device with 12

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VGA 400.2 VGA 600.2 VGA 800.2 VGA 1600.2 VGA 320.4 VGA

... Example: A VGA amplifier has two channels at 175w per channel RMS rating into 4 Ohms (175 x 2 = 350). You would use the formula in the following way: 350W x 2 = 700W 700W = 58.3 Amps Total current draw. 12V If the same amplifier is driven into a 2 Ohm stereo or 4 Ohm mono load, double it's 4 Ohm RMS ...
Mastech MS8264
Mastech MS8264

... * When making connections, connect the common test lead before connecting the live test lead; when disconnecting, disconnect the live test lead before disconnecting the common test lead. * Before changing functions, disconnect the test leads from the circuit under test. * For all dc functions, inclu ...
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Problem 7.14
Problem 7.14

Document
Document

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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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