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Circuit-Test Test Equip Catalog
Circuit-Test Test Equip Catalog

... CIRCUIT-TEST'S most sophisticated digital multimeter. With a built-in computer interface, connect it directly to your PC via the serial port. With its data logging feature, you can monitor any system with a variable sampling rate for extended periods of time without supervision. The data is instanta ...
KEW3021/3022/3023 Instruction Manual
KEW3021/3022/3023 Instruction Manual

... ¡Measured value is held for about 5 sec. after insulation/ resistance measurement of the Test button is released. ¡Backlight function to facilitate work at night or dimly lit locations. ¡Bar-graph to indicate measured results ¡Max. 99 data can be saved to the internal memory at the insulation resist ...
instructions installation of load-share terminals for vlt
instructions installation of load-share terminals for vlt

SQUIDs- Superconducting Quantum Interference Devices
SQUIDs- Superconducting Quantum Interference Devices

... electron-pair wave function throughout the upper superconductor and another throughout the lower one. these wave functions weekly interfere throughout the junction. If magnetic flux is passed through the loop, it changes the relation between the phase difference across the two junctions. As a result ...
Stationary Power Distribution Unit (SPDU) 3-phase, 75
Stationary Power Distribution Unit (SPDU) 3-phase, 75

... • Basic (p/n PDBMN100) continuously monitors the temperature of the transformer, the status of the main input circuit breaker, and the status of a remote alarm contact. Local audio and visual alarms are initiated when the core temperature of the transformer exceeds maximum parameters. The main input ...
User`s manual ATV18 - Variateur de vitesse
User`s manual ATV18 - Variateur de vitesse

... (4) + 24 V internal. When using a + 24 V external supply, connect the 0 V to the COM terminal, and do not use the + 24 terminal of the speed controller. Note : Suppressors should be fitted to all inductive circuits close to the speed controller or connected on the same circuit (relays, contactors, s ...
CD4538BC Dual Precision Monostable
CD4538BC Dual Precision Monostable

... (while inputs B and CD are held to VDD) a valid trigger is recognized, which turns on comparator C1 and N-Channel transistor N1(1). At the same time the output latch is set. With transistor N1 on, the capacitor CX rapidly discharges toward VSS until VREF1 is reached. At this point the output of comp ...
Mohammed Osama AlRuwaili - Sacramento
Mohammed Osama AlRuwaili - Sacramento

... wind farms and Photo Voltaic (PV) establishments to generate electricity. To assist the power system in serving the peak load, the wind turbines for example, can be used as small power generators that are connected to the distribution system or directly at the customer’s site [1]. Since the primary ...
revised_ipmhvc_Masatoshi_Fue_1
revised_ipmhvc_Masatoshi_Fue_1

... The capacitor discharge circuit used in our experiment was unable to generate as high a voltage as that generated by the MPC circuit, with a maximum applied voltage of about 5 kV. An applied voltage of 5 kV was insufficient to generate discharge plasma under an MPC circuit, while it was possible at ...
Thermometrics temperature sensor solutions
Thermometrics temperature sensor solutions

... we can provide innovative solutions in circuit protection, temperature measurement and control, liquid level detection and gas flow measurement. We have one of the most extensive product ranges of industrial temperature sensors in the world. ...
Optimization of Electrochemical Wet Etching of Silver STM
Optimization of Electrochemical Wet Etching of Silver STM

... Voltage was the first parameter that was investigated to discern if there would be a significant affect on time, and more the importantly apex shape after the etch. The primary objective was to find an ideal voltage that could provide a time efficient etch without compromising apex shape. Using the ...
Speed Control of Induction Machines
Speed Control of Induction Machines

IS9.6 High Operating Temperature Metalilized Film Capacitors for
IS9.6 High Operating Temperature Metalilized Film Capacitors for

... Wide Band Gap (WBG) Semiconductors North Carolina State University is leading Wide Band Gap (WBG) development for the Energy ...
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... Parameters in blue, control interfaces in red. Principle is to define as far as possible interlocks for EACH power system, so that they can be operated independently. Suggest that the controls as seen by the operators are for RF system no 1, RF system no 2 separately, with monitoring separately for ...
2016 A- 61 Lakshmi Cotton Factory Bajakhana, Distt. Bathinda
2016 A- 61 Lakshmi Cotton Factory Bajakhana, Distt. Bathinda

transmisii pentru transformarea indirectă a miªcării, pe bază de
transmisii pentru transformarea indirectă a miªcării, pe bază de

... pins signals " YES ", but on the path these are denied, finally getting "NO". As a conclusion, these pins function on inverse logic. Pin 16 functions on direct logic. c. The LPT S group consists of pin set 10 ÷ 13 and 15. On these pins, bits (signals) are intercepted from external devices of PC with ...
DLC4-x / DLC2-x ezDALI 4-Button / 2
DLC4-x / DLC2-x ezDALI 4-Button / 2

EE 442
EE 442

... parallel (shunt) directly to the dc supply lines. If the dc line voltage is constant, then the armature voltage and the field strength will be constant. It is, therefore, apparent that the shunt motor should run at a reasonably constant speed. The speed does tend to drop with an increasing load on t ...
Two-Lane and Four-Lane DisplayPort Passive Switches with Separate AUX/HPD Control MAX4998/MAX14998 Features
Two-Lane and Four-Lane DisplayPort Passive Switches with Separate AUX/HPD Control MAX4998/MAX14998 Features

... The MAX4998/MAX14998 high-speed passive switches route DisplayPort™ between two possible destinations or vice versa in laptops or desktop PCs. The MAX4998/ MAX14998 are intended to be used where ultra-highspeed performance and minimal input capacitance is required. The MAX4998 has three double-pole/ ...
P85452_003 - Ceiling
P85452_003 - Ceiling

... NOTE: These notification appliances are UL Listed as “Regulated”. They are intended to be used with Fire Alarm Control Panels (FACPs) whose notification circuits are UL Listed as “Regulated.” Refer to the FACP instructions or the Cooper Wheelock Strobe Compatibility Data Sheet (PN P85328) for specia ...
EMC Conducted Immunity - Department of Electronic Engineering
EMC Conducted Immunity - Department of Electronic Engineering

AND8460 - Implementing 12V/240W Power Supply with
AND8460 - Implementing 12V/240W Power Supply with

... The high secondary RMS current in the LLC stage has a high di(t)/dt product that can induce a high error voltage on the parasitic inductances of the SR MOSFET package (TO220 for instance). Parasitic error voltages shift the drain to source voltage and affect the accuracy of the ZCD system. As a resu ...
Dynamic Current Profiling
Dynamic Current Profiling

... LEDs and an EEPROM memory chip. The microcontroller requires a 3.3-V input supply. The 3.3 V supply is being provided by channel 1 of the N6705A using the N6762A precision power module (see specs for modules in Table 1). When the microcontroller is powered on, it attempts to communicate with the EEP ...
74CBTLV3257 1. General description Quad 1-of-2 multiplexer/demultiplexer
74CBTLV3257 1. General description Quad 1-of-2 multiplexer/demultiplexer

... common select (S) and output enable (OE) inputs. The low ON resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. When pin OE = LOW, one of the two switches is selected (low-impedance ON-state) with pin S. Whe ...
Aalborg Universitet Guerrero, Josep M.
Aalborg Universitet Guerrero, Josep M.

... mathematical model of the proposed algorithm is presented in the end of this section. A. Traditional power flow method Similar to the power flow analysis in AC power system, the standard way has been set up for power flow analysis of DC system. In the standard way of modeling, all the generators and ...
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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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