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Radio Receivers, from crystal set to stereo
Radio Receivers, from crystal set to stereo

... Transfer of information (speech, music, image, computer data etc.) by radio can be presented in its simplest form with block - diagram as on Pic.2.1. That is a transmission realized by amplitude - modulated signal. Since, in our example, the information being transferred is the sound, the first step ...
MAX2117EVKIT
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... The EV kit can serve as a guide for PCB layout. Keep RF signal lines as short as possible to minimize losses and radiation. Use controlled impedance on all highfrequency traces. The exposed paddle must be soldered evenly to the board’s ground plane for proper operation. Use abundant vias beneath the ...
A study of the gas specificity S.-H. C
A study of the gas specificity S.-H. C

... photoluminescence [1]. The early research focused on fabrication methods, mechanical structures, electronic band structures, optical constants, and luminescence mechanisms, to name a few [2, 3]. Recent research focus has shifted to applications involving porous silicon based LEDs [4, 5] and various ...
CS152: Computer Architecture and Engineering
CS152: Computer Architecture and Engineering

Policies for Dynamic Clock Scheduling
Policies for Dynamic Clock Scheduling

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ARCMASTER® 185 AC/DC 200 AC/DC Service Manual
ARCMASTER® 185 AC/DC 200 AC/DC Service Manual

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Miniature 10 Amps • 4PDT To MIL-PRF-83536 BR230
Miniature 10 Amps • 4PDT To MIL-PRF-83536 BR230

... the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and s ...
A Leakage Reduction Methodology for Distributed MTCMOS
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Golden Rules for Low Emission

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Electronic Transport through a M+@C60 (M=Cs, Li, Na) Molecular

Leakage Current Reduction in CMOS VLSI Circuits by Input Vector
Leakage Current Reduction in CMOS VLSI Circuits by Input Vector

... have relied on scaling down the supply voltage to reduce the dynamic power dissipation. Maintaining the transistor switching speeds requires a proportionate downscaling of the transistor threshold voltages in lock step with the supply voltage reduction. However, threshold voltage scaling results in ...
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... Ignition signals are fast, high voltage, pulses of energy that can damage even a good digital multimeter whereas the IgnitionMate has been specially designed to measure and dynamically display both primary and secondary ignition signals on bright LED bargraph displays. KEY FEATURES: The application ...
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... – SMAW and GTAW require steep output slope from constant current welding machine – GMAW and FCAW require relatively flat output slope from constant voltage power source – Submerged arc welding adaptable to either slop ...
Phase noise analysis of a tail-current shaping technique employed
Phase noise analysis of a tail-current shaping technique employed

... Tail-current noise suppression in radio frequency (RF) BiCMOS VCOs prevents the low-frequency tail-current noise from being converted into phase noise during normal operation of the oscillator. The tail current is made large when the oscillator output voltage reaches its maximum or minimum value and ...
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DS3503 - Maxim Part Number Search

... All voltages are referenced to ground. Currents entering the IC are specified positive and currents exiting the IC are negative. ISTBY is specified with SDA = SCL = VCC and resistor pins floating. ICC is specified with the following conditions: SCL = 400kHz, SDA pulled up, and RL, RW, RH, and Y floa ...
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Electron Transport in Single-Walled Carbon

... both p- and n-type, has been accomplished in a number of ways. Doping with alkali metals that donate electrons to the tube was first used to create n-type devices and later n-type transistors,35–37 p–n junctions,38 and p–n–p devices.39 Alkali metals are not stable in air, however, so other technique ...
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Commercial Grade Lighting Controls Collection

... Vizia +® lighting controls have an all-digital design, coupled with an elegantly simple user interface, resulting in exceptionally intuitive, easy-to-operate controls. The return-to-neutral design provides the ultimate in visual and tactile appeal. The dimmers feature a fade ON/fade OFF, selectable ...
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... Mount the transformer on a plate or panel (not included) with a 7/8 in. knockout. The transformer has a 1/2-14 NPSM conduit connector and lock nut. NOTE: To meet UL requirements, mount the transformer on a plate or panel with a maximum thickness of 0.15 in. This allows three and one-half threads of ...
Distance Protection
Distance Protection

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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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