generator protection using multifunction digital relays
... Protective relaying technology has evolved from single function electromechanical units to static units and now into the digital arena. The development of low cost microprocessor technology has made possible the multifunction digital relay where many relaying functions can be combined into a single ...
... Protective relaying technology has evolved from single function electromechanical units to static units and now into the digital arena. The development of low cost microprocessor technology has made possible the multifunction digital relay where many relaying functions can be combined into a single ...
LP2951-N - Texas Instruments
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
HEF4046B 1. General description Phase-locked loop
... 6.1 VCO control The VCO requires an external capacitor (C1) and resistor (R1) with an optional resistor (R2). Resistor R1 and capacitor C1 determine the frequency range of the VCO, while resistor R2 enables the VCO to have a frequency off-set if required. The high input impedance of the VCO simplifi ...
... 6.1 VCO control The VCO requires an external capacitor (C1) and resistor (R1) with an optional resistor (R2). Resistor R1 and capacitor C1 determine the frequency range of the VCO, while resistor R2 enables the VCO to have a frequency off-set if required. The high input impedance of the VCO simplifi ...
Aalborg Universitet Capacitor-Supported System
... impedance or energy source. Different methods of implementing the auxiliary circuit are given. In [16], the auxiliary circuit has a single switch with a dissipative resistor. In [20], a relay is placed at the input line and is activated, depending on the dc-link voltage level, resulting in a stable ...
... impedance or energy source. Different methods of implementing the auxiliary circuit are given. In [16], the auxiliary circuit has a single switch with a dissipative resistor. In [20], a relay is placed at the input line and is activated, depending on the dc-link voltage level, resulting in a stable ...
RFID Card Reader, Serial (#28140) RFID Card Reader, USB (#28340) Introduction
... The RFID Card Reader Serial version transmits data as 5 V TTL-level, non-inverted asynchronous serial. The RFID Card Reader USB version transmits the data through the USB Virtual COM Port driver. This allows easy access to the serial data stream from any software application, programming language, o ...
... The RFID Card Reader Serial version transmits data as 5 V TTL-level, non-inverted asynchronous serial. The RFID Card Reader USB version transmits the data through the USB Virtual COM Port driver. This allows easy access to the serial data stream from any software application, programming language, o ...
Altivar 61 - Prom Electric
... • Before servicing the drive: — Disconnect all power including external control power that may be present before servicing the drive. — Place a “DO NOT TURN ON” label on the drive disconnect. — Lock disconnect in the open position. — WAIT 15 MINUTES for the DC bus capacitors to discharge. Then follo ...
... • Before servicing the drive: — Disconnect all power including external control power that may be present before servicing the drive. — Place a “DO NOT TURN ON” label on the drive disconnect. — Lock disconnect in the open position. — WAIT 15 MINUTES for the DC bus capacitors to discharge. Then follo ...
PAM8010 Description Pin Assignments
... Large input capaciitors are both expensive and spce hungry for portable designs. Clearly, a certain sized capacitor is needed to capacitor is needed to couple in low frequencies wothout severe attenuation. But in many cases the speakers used in portable systems, whether internal or external, have li ...
... Large input capaciitors are both expensive and spce hungry for portable designs. Clearly, a certain sized capacitor is needed to capacitor is needed to couple in low frequencies wothout severe attenuation. But in many cases the speakers used in portable systems, whether internal or external, have li ...
IQ422 Data Sheet
... small barcode), and address information which can be used for a paper record e.g. a log book. A configured address should be written on this label. A second large adhesive label is supplied to be mounted outside the metal work containing the IQ422 with similar information. This will also have the se ...
... small barcode), and address information which can be used for a paper record e.g. a log book. A configured address should be written on this label. A second large adhesive label is supplied to be mounted outside the metal work containing the IQ422 with similar information. This will also have the se ...
V2x Series Encoder Hardware Manual V21, V22, V23, V24
... This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiat ...
... This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiat ...
SII CMOS IC CD-ROM CATALOG 2000/2001 - SP
... • Constant voltage power monitoring for cameras, video equipment and communication devices etc. • Power source monitoring for microprocessors and CPU resetting. Detection ...
... • Constant voltage power monitoring for cameras, video equipment and communication devices etc. • Power source monitoring for microprocessors and CPU resetting. Detection ...
AND9203 - Optimizing CCR Protection for Minimal Part Count
... current (see Figures 2a and 2b). Each CCR regulates at its natural operating points, and once active, the Zener diode will be able to reconcile any differences in operating points between the CCRs. Designing the Zeners to handle CCR mismatch is critical for proper operation and reliability when impl ...
... current (see Figures 2a and 2b). Each CCR regulates at its natural operating points, and once active, the Zener diode will be able to reconcile any differences in operating points between the CCRs. Designing the Zeners to handle CCR mismatch is critical for proper operation and reliability when impl ...
Cascaded H Bridge Multilevel Inverter Booster As A
... proportion and therefore the efficiency of the entire system increases. For this reason a CHB multilevel inverter can be considered as an effective option for realization as a DVR. Many experiments have been carried out to realize a multilevel inverter as a DVR and most of them have been done using ...
... proportion and therefore the efficiency of the entire system increases. For this reason a CHB multilevel inverter can be considered as an effective option for realization as a DVR. Many experiments have been carried out to realize a multilevel inverter as a DVR and most of them have been done using ...
MAX1980 Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter General Description
... The MAX1980 provides the same high-efficiency, ultralow duty factor capability, and excellent transient response as other Quick-PWM controllers. The MAX1980 differentially senses the inductor currents of both the master and the slave across current-sense resistors. These differential inputs and the ...
... The MAX1980 provides the same high-efficiency, ultralow duty factor capability, and excellent transient response as other Quick-PWM controllers. The MAX1980 differentially senses the inductor currents of both the master and the slave across current-sense resistors. These differential inputs and the ...
Dual Channel Temperature Sensor and Over Temperature Alarm
... sensor and over/under temperature alarm. When the ADT7481 is operating normally, the on-board ADC operates in a free-running mode. The analog input multiplexer alternately selects either the on-chip temperature sensor to measure its local temperature, or either of the remote temperature sensors. The ...
... sensor and over/under temperature alarm. When the ADT7481 is operating normally, the on-board ADC operates in a free-running mode. The analog input multiplexer alternately selects either the on-chip temperature sensor to measure its local temperature, or either of the remote temperature sensors. The ...
AN123 - Linear Technology
... Technology Corporation. All other trademarks are the property of their respective owners. ...
... Technology Corporation. All other trademarks are the property of their respective owners. ...
MAX5440 Stereo Volume Control with Rotary Encoder Interface General Description
... with Rotary Encoder Interface The MAX5440 dual, 40kΩ logarithmic taper volume control features a debounced up/down interface for use with a simple rotary encoder without using a microcontroller (µC). Each potentiometer has 32 log-spaced tap points with a buffered wiper output and replaces mechanical ...
... with Rotary Encoder Interface The MAX5440 dual, 40kΩ logarithmic taper volume control features a debounced up/down interface for use with a simple rotary encoder without using a microcontroller (µC). Each potentiometer has 32 log-spaced tap points with a buffered wiper output and replaces mechanical ...
Catalogue PDF (3.4 MB)
... • Low-friction resin with excellent sliding performance has been adopted for the bearing sections of threephase axis. Furthermore, the sliding parts are coated with a long-life grease that contributes to the prevention of oxidization and deterioration. • The mechanical holding latch has been replace ...
... • Low-friction resin with excellent sliding performance has been adopted for the bearing sections of threephase axis. Furthermore, the sliding parts are coated with a long-life grease that contributes to the prevention of oxidization and deterioration. • The mechanical holding latch has been replace ...
n-lin, p-sat
... suffers from a lower VOH than the other configurations. The “linear”-enhancement NMOS load inverter requires two voltage supplies to produce VOH=VDD. One Advantage when designing multi-input gates, we only require one load regardless of the number of inputs. Because of the push-pull arrangement ...
... suffers from a lower VOH than the other configurations. The “linear”-enhancement NMOS load inverter requires two voltage supplies to produce VOH=VDD. One Advantage when designing multi-input gates, we only require one load regardless of the number of inputs. Because of the push-pull arrangement ...
Operating instructions fpr OSRAM DALI Professional Controller
... If the EVGs are still supplied with voltage from another power supply line, these call up – consequent to the lacking DALI communication – until voltage restoration reaches the system failure level of 100% that is set at the factory. With previous configuration by means of the DALI Professional soft ...
... If the EVGs are still supplied with voltage from another power supply line, these call up – consequent to the lacking DALI communication – until voltage restoration reaches the system failure level of 100% that is set at the factory. With previous configuration by means of the DALI Professional soft ...
MAX8728 Low-Cost, Multiple-Output Power Supply for LCD Monitors/TVs General Description
... 13.2V and is optimized for LCD TV panel and LCD monitor applications running directly from 12V supplies. The step-up and step-down regulators feature internal power MOSFETs and high-frequency operation allowing the use of small inductors and capacitors, resulting in a compact solution. Both switchin ...
... 13.2V and is optimized for LCD TV panel and LCD monitor applications running directly from 12V supplies. The step-up and step-down regulators feature internal power MOSFETs and high-frequency operation allowing the use of small inductors and capacitors, resulting in a compact solution. Both switchin ...
HD61203U
... The timing generator circuit generates display timing and operating clock for the HD61202U. This circuit is required when the HD61203U is used with the HD61202U. Connect terminal M/S to high level (master mode). It is not necessary when the display timing signal is supplied from other circuits, for ...
... The timing generator circuit generates display timing and operating clock for the HD61202U. This circuit is required when the HD61203U is used with the HD61202U. Connect terminal M/S to high level (master mode). It is not necessary when the display timing signal is supplied from other circuits, for ...
Technique for measurement of the noise of a sensor
... comprehensive understanding of the error signals in the sensor is the first step towards reducing the errors. Typical sources of spurious signals include thermal noise, mechanical relaxation of packaging, and circuit noise. Measuring these error signals can be quite difficult in the case of high per ...
... comprehensive understanding of the error signals in the sensor is the first step towards reducing the errors. Typical sources of spurious signals include thermal noise, mechanical relaxation of packaging, and circuit noise. Measuring these error signals can be quite difficult in the case of high per ...