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software techniques for compensating st7 adc errors
software techniques for compensating st7 adc errors

... It is always recommended to shut down the ADC before entering the HALT mode. When exiting from HALT mode, put the ADC ON again. The stabilization time for the ADC, after exiting from HALT is specified in the datasheet. 1.7 USING A TIMER TO MAKE PERIODIC CONVERSIONS Some applications may have special ...
Measurement of very-low frequency noise
Measurement of very-low frequency noise

... stochastic process as observed on one sample can be ultimately indentified with corresponding averages on an ensemble of samples, leads to the consideration of an ergodic process. In general, a stochastic process is said to be ergodic, if the time-averaged mean value of a sample (equation (1.1)) and ...
OWNERS Manual - Battery Charger Depot
OWNERS Manual - Battery Charger Depot

... water when necessary. Distilled or deionized water is free of contaminants and preferred for this use. Never allow the electrolyte level to fall below the top of the battery plates. Electrolyte levels lower during discharge and rise during charge. Therefore, to prevent the overflow of electrolyte wh ...
Raspberry Pi GPIO worksheet
Raspberry Pi GPIO worksheet

CR100_S2BS Meter Manual
CR100_S2BS Meter Manual

... The S2AS meters form a family of solid state single phase meters to cover the whole range of residential metering applications. Single or two rate register, pulse output and communcation interface according IEC 1107. The meters can be used for currents up to 100 A. The meter is equipped with feature ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676

... This figure displays that the damping controller is composed of a gain block, a washout filter, and a lead-lag compensator. The damping controller is designed so as to provide an extra electrical torque in phase with the speed deviation in order to enhance the damping of oscillations [1]. The gain s ...
SU UM 990-4324 MN01 EN
SU UM 990-4324 MN01 EN

AUTROL APT3200 SERIES SMART PRESSURE TRANSMITTER OPERATION MANUAL
AUTROL APT3200 SERIES SMART PRESSURE TRANSMITTER OPERATION MANUAL

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PP.AFD.07

... For Power Lines 60 Hz is Fundamental ...
VPhase VX1 Installation Instructions - E
VPhase VX1 Installation Instructions - E

... To avoid false readings, and the risk of damage to the electronics, the VX1 should be isolated before insulation resistance testing is carried out. The VX1 unit supplies power to circuits via a transformer. You must ensure that the VX1 device is active and regulating before undertaking Earth Loop Im ...
4 - MyWeb at WIT
4 - MyWeb at WIT

... Household Wiring • The one specification that defines the overall system is the maximum current that can be drawn from the power lines since the voltage is fixed at 120 V or 240 V (sometimes 208 V). • For most older homes with a heating system other than electric, a 100 A service is the norm. • Toda ...
Magnetron Theory of Operation
Magnetron Theory of Operation

... types operating at the same frequency and output power may differ radically from each other. Each type is usually designed for a particular purpose and subtle differences in the internal magnetron configuration can produce radical differences in the thermal drift curve. It should be noted that a the ...
Claudio`s slides (PDF download)
Claudio`s slides (PDF download)

... voltage elements have to coordinate with overcurrent elements. The reason is because when a line-to-ground fault happens in these systems, at the healthy phases the voltage increases and may cause overvoltage elements to trip. This condition is even critical for the operator´s safety, because lookin ...
introduction to esd
introduction to esd

... charged object due to contact, electrical short or dielectric breakdown. The reason of electrostatic charging is tribocharging (separation of electric charges that occurs when two materials are brought into contact and then seperated) or electrostatic induction (occurs when an electrically charged o ...
GENERAL DESCRIPTION FEATURES
GENERAL DESCRIPTION FEATURES

... The application thermistor cannot exceed the RDQ-THM resistance range over operating temperature. If thermistor mode is not used in the application, it is recommended that a 50KΩ resistor be connected between DQ and THM pins instead. Maximum leakage of DQ pin while in thermistor mode. When performin ...
dc machine - UniMAP Portal
dc machine - UniMAP Portal

... because of the armature reaction. Since the denominator terms decrease, there is less reduction in speed and speed regulation is improved (as shown in previous slide). If a motor has compensating windings, of course there will be no fluxweakening problem in the machines, and the flux in the machine ...
3 - Schneider Electric België
3 - Schneider Electric België

... Sepam can be connected to a supervision communication network (S-LAN) based on the following communication protocols: Modbus RTU, DNP3, IEC 60870-5-103, IEC 61850. All the data needed for centralized equipment management from a remote control and monitoring system are available via the communication ...
DESIGN AND CONTROL OF A BIDIRECTIONAL DC/DC CONVERTER FOR
DESIGN AND CONTROL OF A BIDIRECTIONAL DC/DC CONVERTER FOR

... powertrain of an electric vehicle. The objective is to develop an integral solution of DC/DC converter and control that supports bidirectional operation, in order to recover energy during regenerative braking. The proposed DC/DC converter topology is a bidirectional boost converter with output filte ...
Powermax30 AIR Operator Manual (808840 rev 3)
Powermax30 AIR Operator Manual (808840 rev 3)

... Powermax30 AIR ...
Flux SA loop detector pocket manual
Flux SA loop detector pocket manual

... The loop and feeder should be constructed from XLPE (crosslinked polyethylene) insulated multi-stranded copper wire with a minimum cross-sectional area of 1.5mm2. The feeder should be twisted at a rate of at least 20 turns per metre to improve reliability (Remember that twisting the feeder will shor ...
RF2878 3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER Features
RF2878 3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER Features

... Moving to another application, consider the schematic for 350MHz LNA. Noise figure in this case=1.75dB. In contrast to above linear driver, bias resistor is set at 1000 to limit current. In the specifications next to schematic, see that input return loss is somewhat degraded at 2.8dB. The absence o ...
IEEE Standard 519-2014
IEEE Standard 519-2014

EureCard PICOLO
EureCard PICOLO

... This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equi ...
SURGE PROTECTIVE DEVICES (SPDs) LOW VOLTAGE AC
SURGE PROTECTIVE DEVICES (SPDs) LOW VOLTAGE AC

Modular Oscilloscopes vs. Digitizers Technical Article
Modular Oscilloscopes vs. Digitizers Technical Article

... or registered trademarks of their respective owners. Information contained in this document is summary in nature and subject to change without notice. ...
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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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