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The GEOSAT Follow-on (GFO) Altimeter
The GEOSAT Follow-on (GFO) Altimeter

... Amplifier Section The Ku-band low-power amplifier section consists of three cascaded amplifiers using packaged gallium arsenide (GaAs) field effect transistor (FET) devices. These devices can provide up to 24 dBm of output power at the 1 dB gain compression point. The FETs were characterized by meas ...
Transmission Cables Overhead/Underground Guidance
Transmission Cables Overhead/Underground Guidance

Varialble frequency drives (VFD) design guide
Varialble frequency drives (VFD) design guide

Self-calibrating Online Wearout Detection - CCCP
Self-calibrating Online Wearout Detection - CCCP

497-712
497-712

... Fig. 5. Electrical scheme of an SFQ/DC converter according to [9], [12]. If there is circulating current in the loop of the T-flipflop, the phase drop over J6 after the switching of J7 is not enough to switch it. The continuous switching of J6 and J7, described above, does not take place and the mea ...
MAX965–MAX970 Single/Dual/Quad, Micropower, Ultra-Low-Voltage, Rail-to-Rail I/O Comparators General Description
MAX965–MAX970 Single/Dual/Quad, Micropower, Ultra-Low-Voltage, Rail-to-Rail I/O Comparators General Description

... and outputs and an internal 1.235V ±1.5% bandgap reference. These devices operate from a single +1.6V to +5.5V supply voltage range, and consume less than 5µA supply current per comparator over the extended temperature range. Internal hysteresis is programmable up to ±50mV using two external resisto ...
Temporary Power Basics
Temporary Power Basics

Electricity – Resistance and Power
Electricity – Resistance and Power

... The resistance of a wire depends on several factors:  Material – Different materials have different resistances because some materials are better conductors. Nichrome wire has a higher resistance than a copper wire of the same size.  Length – The longer a wire is the higher its resistance. When el ...
MPOD Local user guide (pdf)
MPOD Local user guide (pdf)

... “_up” Scintillators 1& 2 up with appropriate voltage and current limits: RAMP speed 50V/s “_down” Scintillators 1& 2 down and switched OFF After powering up any detectors required the monitoring current limits can be set to safe levels by executing the command “./iLimit” In an emergency the crate ca ...
LED lighting surge protection - International Show Caves Association
LED lighting surge protection - International Show Caves Association

MOS LSI
MOS LSI

... push-pull output buffers that permit the wire-OR configuration through use of the Receiver Output Disable (ROD) terminal. When a high level is applied to ROD the RO outputs are floating. If the word length is less than 8 bits, the most significant bits will be at a low level. The output word is righ ...
Electricity – Resistance and Power
Electricity – Resistance and Power

... The resistance of a wire depends on several factors:  Material – Different materials have different resistances because some materials are better conductors. Nichrome wire has a higher resistance than a copper wire of the same size.  Length – The longer a wire is the higher its resistance. When el ...
Illumination Utilization of Electrical Energ 6TH SEMESTER
Illumination Utilization of Electrical Energ 6TH SEMESTER

... It is seen from the ratio error that the difference between actual ratio and turn ratio is due to the secondary current I2 and the no load components Iw and Im. To minimise these errors the following methods should be adopted : 1. In order to minimise the errors the no load current components Iw and ...
File
File

Pulse Energy Meter
Pulse Energy Meter

FED 101: Computer Engineering Module Version 1.3
FED 101: Computer Engineering Module Version 1.3

... What determines the current, in direct-current electrical devices, is the resistance measured in units of Ohms. Ohms are designated by the Greek letter Ω. There are electrical devices available called resistors. They are usually cylindrical in shape with wire conductors (leads) emerging from each en ...
Velocity-time graphs
Velocity-time graphs

... Note that the steeper the line, the greater the speed of the object. The blue line is steeper than the red line because it represents an object moving faster than the one represented by the red line. The red lines on the graph represent a typical journey where an object returns to the start again. ...
Hydrazoid
Hydrazoid

... A brief review of robot development is important as it puts the current machines and interest in them into an historical perspective. The following list highlights the growth of automated machines that led to the development of the industrial robots currently available today. This iBOTZ kit is an id ...
Voltage Harmonics Measuring Issues in Medium Voltage
Voltage Harmonics Measuring Issues in Medium Voltage

... used in medium voltage (MV) and high voltage (HV) systems for separation of the measuring and protecting circuit from high voltage hazard. Rated primary voltages of VTs, typically used in power system, have to correspond to rated voltages of MV and HV transmission lines in particular power system. S ...
Differential pressure sensing: an ambiguous term
Differential pressure sensing: an ambiguous term

... To the user the negative offset available at the amplifier input appears to be misaligned in the transfer characteristic of Figure 8, for example, which with two-point measurement (offset and full-scale signal) can be treated as nonlinearity. This mismatch (negative input signal) must be taken into ...
LOGIC GATES
LOGIC GATES

Slide mode control method
Slide mode control method

... •The system consists of a DC/DC boost converter to transfer power to load from PV panel. • The boost converter consists of a power switch D, on–off control of this switch controls the output voltage of the converter, also can be used to track MPP by operating panel at VMPP (voltage at maximum power ...
Commercial Spa Blower Selection Guide
Commercial Spa Blower Selection Guide

... spas and hot tubs Most spas and hot tubs require regenerative blowers to provide the pressure and flow needed to agitate the water. Sizing a blower can be as simple as following these steps: 1. Determine the number of jets and/or orifices in the spa. 2. Calculate the total area of all the orifices ...
7. MS, MOS and other structures
7. MS, MOS and other structures

Galvanically Isolated Modular Converter - Infoscience
Galvanically Isolated Modular Converter - Infoscience

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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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