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VOS628A Optocoupler, Phototransistor Output, AC Input, Low Input
VOS628A Optocoupler, Phototransistor Output, AC Input, Low Input

ADM1066 数据手册DataSheet 下载
ADM1066 数据手册DataSheet 下载

... The ADM1066 Super Sequencer® is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. In addition to these functions, the ADM1066 integrates a 12-bit ADC and six 8-bit voltage output DACs. These circuits can ...
Harmonic Presentation
Harmonic Presentation

... Tends to offer reductions in only higher order harmonics. Has little effect on the 5th and 7th harmonics. Because of the associated voltage drop, there are limits to the amount of reactance that may be added. ...
TDR 2000 english
TDR 2000 english

... offering measurement capability of up to 35 TΩ. The instrument performs automatic tests and has data storage and data retrieval facilities. Polarization index and dielectric discharge tests are performed automatically, and test duration and voltages can be adjusted according to user preference for t ...
5
5

... Since output of load cell is vary small in the range of mV. Thus load cell signal conditioner required, which include amplifiers to boost the signal level to increase measurement resolution. Instrumentation Amplifier In a number of industrial and consumer applications, one is required to measure and ...
Capacitance and Dissipation Factor Measurement of Chip
Capacitance and Dissipation Factor Measurement of Chip

... As capacitance and dissipation factor of these Temperature characteristic MLCC capacitors significantly change according to the measurement temperature, voltage (AC, DC) and frequency. One of the reasons of such a failure to obtain a reasonable capacitance can be that your have not performed the mea ...
BD00GA3MEFJ-M
BD00GA3MEFJ-M

... It is recommended that a capacitor is placed nearby pin between Input pin and GND, output pin and GND. A capacitor, between input pin and GND, is valid when the power supply impedance is high or drawing is long. Also as for a capacitor, between output pin and GND, the greater the capacity, more sust ...
Lockout/Tagout Program
Lockout/Tagout Program

... own personal tagout or lockout, and this applies even though someone else may already have taken the equipment out of service. If the equipment or machinery has not already been tagged by another group or individual, it should be done at this time. This tag should remain in place until the equipment ...
RS-422 and RS-485 Application Note
RS-422 and RS-485 Application Note

... signal quality requirements of: a). Signal rise and fall time equal to, or less than, one-half unit interval at the applicable modulation rate. b). The maximum voltage loss between driver and load of 6 dB. Losses in a transmission line are a combination of AC losses (skin effect), DC conductor loss, ...
Thunder Application Notes - Face International Corporation
Thunder Application Notes - Face International Corporation

... effective length of the device. This method is better for the ceramic but the amount of displacement is much less than available with the up and down pumping motion of the device. Additionally, a Thunder device will move farther and is “more powerful” when moving in the “flattened” or down direction ...
full paper - e-JST
full paper - e-JST

... Present system is a model which shows cooperative task sharing in the form of relay race of robot. There each robot has separate address ID stored in it via programming. When module has got proper information on their ID detector which is basically a group of IR receiver, Whenever ID detector receiv ...
GT1000 Multi Chemistry Charger
GT1000 Multi Chemistry Charger

... full power, it can deliver 1000W to batteries during charge. To achieve this, even on a 6 cell Lithium battery, it must boost the input voltage. This means the GT1000 may draw up to 1200W from the input power supply. To take advantage of GT1000’s full power capability, the power source should be 30V ...
LM25118/LM25118Q Wide Voltage Range Buck
LM25118/LM25118Q Wide Voltage Range Buck

... self synchronize or be synchronized to an external clock. Fault protection features include current limiting, thermal shutdown and remote shutdown capability. An under-voltage lockout input allows regulator shutdown when the input voltage is below a user selected threshold, and a low state at the en ...
The Pyramidal Electric Transducer
The Pyramidal Electric Transducer

... resistor (calculable from voltage). Power transfer efficiency calculations are shown in Table 2. We have also repeated this experiment by driving the pyramidal electric transducer with the VDG connected in series with a 10Ω resistor. The power across the system was calculated as above (Table 3). Fur ...
Scaling Laws - Rogers Research Group
Scaling Laws - Rogers Research Group

Southwest Microwave, Inc.
Southwest Microwave, Inc.

... In this position a red LED indicates when the receiver is “ON” so that phasing can be checked. When the “slave” jumper is on the normal channel selection feature is overridden. The PLL detector output is a voltage level which is held constant under normal conditions by the slow acting AGC loop. Rapi ...
Diapositiva 1 - WikiService.at
Diapositiva 1 - WikiService.at

... that would cause the same amount of work to be done (the same effect) as the same value of DC voltage or current would cause. That's why rms (or effective) values are useful: they give us a way to compare ac voltages to dc voltages Effective Voltage: = RMS (Root Mean Square) Voltage: Effective Vol ...
TP-7 Instruction Bulletin
TP-7 Instruction Bulletin

... Both the repeale r and the power u nit have brackets at ll1c ends so that th ey can l.)e mou nted on a relay rack as show n in Fig. 4 o r in a case as shown in F ig . 6a. A wooden case is p rov id ed for mounting both the repeater uni t and the powe r unit. Th is case is 20" x 8" x 9;;.;1." and is e ...
S225-10-5
S225-10-5

... The 65oC rise insulation system and the sealed-tank construction allow for a BONUS CAPACITY 12% above the 55oC normal rating without loss of normal insulation life. The BONUS CAPACITY is stated on the nameplate (such as 167/187 kVA for a nominal 167 kVA regulator), and is available when the ADD-AMP ...
Installation Instruction Sheet for TR Tribute
Installation Instruction Sheet for TR Tribute

... WARNING: Risk of Burn. Disconnect power and allow fixture to cool before changing bulb or handling fixture. WARNING: Risk of Personal Injury. Fixture may become damaged and/or unstable if not installed properly. Tighten all fixture components to their recommended torque values. Ensure door is proper ...
Time Varying Harmonic Currents from Large Penetration Electronic
Time Varying Harmonic Currents from Large Penetration Electronic

... In order to adequately investigate time-varying behavior of harmonic spectra specific harmonic monitoring systems are required which allow a continuous recording of harmonic quantities [1]-[4]. Specific and quite expensive commercial products or custom-made equipment are required. The continuous mon ...
TESLA 4000 Data Sheet
TESLA 4000 Data Sheet

... • 36 analog and 64 digital inputs (see table for details) – 144 analog/256 digital with 4 units in cooperative mode • 256 virtual inputs to record digital status changes contained in IEC 61850 GOOSE messages • Remote input modules provide isolation and save costly PT and CT wiring runs • On-boar ...
INTRODUCTION - AEP has a long tradition of technical excellence
INTRODUCTION - AEP has a long tradition of technical excellence

... There should be two sources of AC substation service for preferred and back-up feeds. Some acceptable substation service alternatives would be to feed the substation service transformers via the tertiary winding of an autotransformer or connect power PTs to the bus. Distribution lines should not be ...
Current Control of VSI-PWM Inverters
Current Control of VSI-PWM Inverters

... within a reasonable tolerance. This assumption will create an error for the ramp comparison controller which can produce relatively large current errors if the controller gain is low. The transient model for the induction motor is shown in Fig. 7 with the parameters for a typical 220-V three-phase 6 ...
60-1175 - T87F Universal Thermostat
60-1175 - T87F Universal Thermostat

... other control applications, proceed as follows. Adjust anticipator to match current rating of primary control. Rating is usually stamped on the control nameplate. Move the indicator to the marking that matches this rating. Indicator may be moved with fingers or pencil point through hole shown in Fig ...
< 1 ... 489 490 491 492 493 494 495 496 497 ... 1974 >

Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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