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Crate PSU Stress Analysis
Crate PSU Stress Analysis

26 18 39 Medium Voltage Controllers Specification
26 18 39 Medium Voltage Controllers Specification

... The relays shall provide complete sequence-of-events recording, time stamped in milliseconds. The relays shall provide oscillography (waveform) capture, with configurable pre- and post-fault data capture times. The relays shall recognize and alarm CT open circuit or short circuit conditions. All rel ...
Temperature sensors and voltage references implemented in CMOS
Temperature sensors and voltage references implemented in CMOS

... circuit are used as in bandgap references. The main difference between both types of circuits is that, in bandgap references, is added to the base-emitter voltage the PTAT voltage , in order to compensate for its temperature coefficient, is while in temperature sensors, the base-emitter voltage in o ...
A HIGH PERFORMANCE FULLY DIFFERENTIAL PURE CURRENT
A HIGH PERFORMANCE FULLY DIFFERENTIAL PURE CURRENT

... Figure 5 shows the response of the proposed COA to step input of ±100 µA in unity gain configuration which proves its closed loop stability. The CMRR Frequency performance of the proposed COA is shown in Fig. 6 which shows a ...
ASC1 Owners Manual
ASC1 Owners Manual

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242 - QSL.net

ADC0831,ADC0832,ADC0834,ADC0838
ADC0831,ADC0832,ADC0834,ADC0838

Paralleling Arc Welding Power Sources
Paralleling Arc Welding Power Sources

... drums, or pipes, can cause them to blow up. Sparks can fly off from the welding arc. The flying sparks, hot workpiece, and hot equipment can cause fires and burns. Accidental contact of electrode to metal objects can cause sparks, explosion, overheating, or fire. Check and be sure the area is safe b ...
MAX5875 16-Bit, 200Msps, High-Dynamic-Performance, Dual DAC with CMOS Inputs General Description
MAX5875 16-Bit, 200Msps, High-Dynamic-Performance, Dual DAC with CMOS Inputs General Description

... digital-to-analog converter (DAC). This DAC meets the demanding performance requirements of signal synthesis applications found in wireless base stations and other communications applications. Operating from 3.3V and 1.8V supplies, this dual DAC offers exceptional dynamic performance such as 78dBc s ...
XR33180/81/83/84
XR33180/81/83/84

... RS-485/RS-422 receivers designed to meet the increasing system requirements found in today’s high performance serial communication applications. The receiver includes enhanced failsafe circuitry, guaranteeing a logic-high receiver output when the receiver inputs are open, shorted, or undriven. The X ...
eC-test-mate - Eurocircuits
eC-test-mate - Eurocircuits

... The eC-test-mate is a family of portable devices for production testing of printed circuit boards (PCBs). The devices (Test Heads) are controlled by a command language on a PC to which they are connected via USB. Each Test Head type provides a fixed number of functions. By combining multiple Test He ...
MAX2163 ISDB-T 1-Segment Tuner General Description Features
MAX2163 ISDB-T 1-Segment Tuner General Description Features

... The MAX2163 includes LNAs, RF variable gain amplifiers, I and Q downconverting mixers, a baseband variable gain amplifier, and a low-IF filter. The MAX2163’s variable gain amplifiers provide in excess of 100dB of control range. The MAX2163 also includes fully monolithic VCOs as well as a complete fr ...
LTC3866-Current Mode Synchronous Controller for Sub Milliohm
LTC3866-Current Mode Synchronous Controller for Sub Milliohm

Weidmann Diagnostic Solutions Electrostatic Precipitator
Weidmann Diagnostic Solutions Electrostatic Precipitator

... Electrostatic precipitators (ESPs) are critical to the clean delivery of electric power as well as controlling particulate emissions from various industrial processes. The transformer/rectifier is a major component of the power supply system to the ESPs. The failure of a transformer/rectifier can li ...
Instruction Manual Model 169 Digital Multimeter 01979, Keithley
Instruction Manual Model 169 Digital Multimeter 01979, Keithley

... to direct sunlight, or high temperature and high humidity conditions can cause the display to temporarily blacken. Also, the display may become sluggish if exposed to extremely cold temperatures. Even though recovery occurs at normal Operating temperatures. these conditions should be avoided for max ...
MAX1693/(MAX1693H)/MAX1694 USB Current-Limited Switches with Fault Blanking General Description
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... returns to its high-impedance state. In the MAX1694, any overcurrent longer than 10ms will latch the switch open and set FAULT low. The latch is cleared by cycling the ON input or by powering up the device again. This feature saves power by preventing the device from thermally cycling on and off in ...
RF3231 DUAL-BAND GSM900/DCS1800 TRANSMIT MODULE WITH WCDMA PORT
RF3231 DUAL-BAND GSM900/DCS1800 TRANSMIT MODULE WITH WCDMA PORT

... port to the TX path (or RX port), while maintaining proper isolation. Integrated filtering provides ETSI-compliant harmonic suppression at the antenna port even under high mismatch conditions, which is important as modern antennas often present a load that significantly deviates from nominal impedan ...
lt1763.pdf
lt1763.pdf

... 30µA quiescent current makes them an ideal choice. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. A key feature of the LT1763 regulators is low output noise. With the addition of an external 0.01µF bypass capacitor, output noise drops to 20µV ...
LTC2942 - Battery Gas Gauge with Temperature, Voltage
LTC2942 - Battery Gas Gauge with Temperature, Voltage

... The LTC2942 includes a 14-bit No Latency ∆Σ analog-todigital converter, with internal clock and voltage reference circuits. The ADC can either be used to monitor the battery voltage at SENSE– or to convert the output of the on-chip temperature sensor. The sensor generates a voltage proportional to t ...
LT1763CS8 - EDG uchicago
LT1763CS8 - EDG uchicago

... 30µA quiescent current makes them an ideal choice. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. A key feature of the LT1763 regulators is low output noise. With the addition of an external 0.01µF bypass capacitor, output noise drops to 20µV ...
An Introduction to BJT
An Introduction to BJT

... IB = 0 and VCE = VCC. That is, both the baseEmitter and the basecollector junctions are reversed biased. Under this condition, there is a very small amount of collector leakage current ICE0 due mainly to thermally produced carriers. It is usually neglected in circuit analysis. ...
LP2951-N - Texas Instruments
LP2951-N - Texas Instruments

... All LP2950 devices have the nominal output voltage coded as the last two digits of the part number. In the LP2951 products, the 3-V and 3.3-V versions are designated by the last two digits, but the 5-V version is denoted with no code at this location of the part number (refer to the Package Option A ...
MAX 860 MAX 1500 MAX 2500
MAX 860 MAX 1500 MAX 2500

... preventing it and speakers it’s connected to from harm. SHORT CIRCUIT: When speakers short circuit, this feature protects the amplifier by cutting off the output current to the speakers. THERMAL: Heat is created during high level output – especially when during bridge operation. The unit comes with ...
General Description Features
General Description Features

Battery Charger / Rectifier
Battery Charger / Rectifier

... manufacturing capability to provide the optimum solution. Power Conversion The AC to DC power conversion element of the system is typically configured from thyristor or switch mode technology depending on the performance and size constraints. The range of thyristor based systems are highly rugged in ...
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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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