s27R
... consume about 12 MW of real power and 70 MW of reactive power while transferring about 300 MW. The voltage drops as we approach the middle of an unloaded line; thus, the segmented line consumes slightly more reactive power because it models this drop. Note that real power flows from higher angles to ...
... consume about 12 MW of real power and 70 MW of reactive power while transferring about 300 MW. The voltage drops as we approach the middle of an unloaded line; thus, the segmented line consumes slightly more reactive power because it models this drop. Note that real power flows from higher angles to ...
Atmel LED Driver-MSL2162 Datasheet Brief EEPROM, and SPI Bus
... architectures is shown in Table 1. Area LED dimming for direct backlighting is supported for contrast and color gamut improvement. Motion blur is reduced by setting each LED string’s PWM phasing individually to synchronize PWM off-times with the LCD update timing. The MSL2162 also includes easily co ...
... architectures is shown in Table 1. Area LED dimming for direct backlighting is supported for contrast and color gamut improvement. Motion blur is reduced by setting each LED string’s PWM phasing individually to synchronize PWM off-times with the LCD update timing. The MSL2162 also includes easily co ...
BD439/ 441 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings
... This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. ...
... This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. ...
Relay Board - Heathcote Electronics
... The relay board has 4 double pole relays and a power supply. This allows the board to be powered by a voltage from 12 to 16 volts of either AC or DC. Power supply connections are made to terminals "+" and "0V". All the relay contacts are accessible for wiring from screw terminals. Four LEDs are fitt ...
... The relay board has 4 double pole relays and a power supply. This allows the board to be powered by a voltage from 12 to 16 volts of either AC or DC. Power supply connections are made to terminals "+" and "0V". All the relay contacts are accessible for wiring from screw terminals. Four LEDs are fitt ...
chapter one introduction 1.1 background of the study
... Kurian et al. (44) shows a possibility of using a model based artificial light control technology. An attempt has been made by the same author in (10) for applying simulation assisted computational model for adaptive predictive control in a daylight artificial integrated scheme for energy saving vi ...
... Kurian et al. (44) shows a possibility of using a model based artificial light control technology. An attempt has been made by the same author in (10) for applying simulation assisted computational model for adaptive predictive control in a daylight artificial integrated scheme for energy saving vi ...
Type VMN Voltage Monitoring Resistor Networks
... The Type VMN Transient Tolerant Voltage Monitoring Networks are designed for use in the voltage measurement circuits of Power Quality Monitoring Equipment, Kilowatt-Hour Meters, and other Power and Energy Measurement Equipment, where precision electrical service voltage monitoring is required. The V ...
... The Type VMN Transient Tolerant Voltage Monitoring Networks are designed for use in the voltage measurement circuits of Power Quality Monitoring Equipment, Kilowatt-Hour Meters, and other Power and Energy Measurement Equipment, where precision electrical service voltage monitoring is required. The V ...
A Tutorial on the Decibel
... The need for a consistent way to compare signal strengths and how they change under various conditions is as old as telecommunications itself. The original unit of measurement was the “Mile of Standard Cable.” It was devised by the telephone companies and represented the signal loss that would occur ...
... The need for a consistent way to compare signal strengths and how they change under various conditions is as old as telecommunications itself. The original unit of measurement was the “Mile of Standard Cable.” It was devised by the telephone companies and represented the signal loss that would occur ...
PDF
... impressive results on modulators [1-4], filters [5], and detectors [6], have produced considerable interest in the field for addressing the bandwidth and power consumption limitations within high-performance computers, data centers, and even on-chip communications. Yet, on-chip (i.e. intra-chip) com ...
... impressive results on modulators [1-4], filters [5], and detectors [6], have produced considerable interest in the field for addressing the bandwidth and power consumption limitations within high-performance computers, data centers, and even on-chip communications. Yet, on-chip (i.e. intra-chip) com ...
MAX1765 800mA, Low-Noise, Step-Up DC-DC Converter with 500mA Linear Regulator General Description
... The MAX1765 uses a synchronous-rectified pulsewidth-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of input sources, such as one to three alkaline or NiCd/NiMH cells or a single lithium-ion (Li+) cell. Maxim's proprietary architecture significantly improves effici ...
... The MAX1765 uses a synchronous-rectified pulsewidth-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of input sources, such as one to three alkaline or NiCd/NiMH cells or a single lithium-ion (Li+) cell. Maxim's proprietary architecture significantly improves effici ...
Wärtsilä JOVYSTAR HP
... an almost sinusoidal current consumption. The advantages of this technology are evident: thanks to the improved performance factor at the input to the rectifier the UPS systems of these types have a reduced input performance of up to 30% in comparison to common UPS systems with a Thyristor rectifier ...
... an almost sinusoidal current consumption. The advantages of this technology are evident: thanks to the improved performance factor at the input to the rectifier the UPS systems of these types have a reduced input performance of up to 30% in comparison to common UPS systems with a Thyristor rectifier ...
SP-35X Signal Powered DC Volt Meter 3 1/2 Digit 0.48” LCD
... Texmate warrants that its products are free from defects in material and workmanship under normal use and service for a period of one year from date of shipment. Texmate’s obligations under this warranty are limited to replacement or repair, at its option, at its factory, of any of the products whic ...
... Texmate warrants that its products are free from defects in material and workmanship under normal use and service for a period of one year from date of shipment. Texmate’s obligations under this warranty are limited to replacement or repair, at its option, at its factory, of any of the products whic ...
PowerFlex 70 Sample Specification GENERAL
... Two analog inputs are available. Each input is user configurable to 0 - 10V DC or 4-20 mA. They are user programmable for a variety of uses including frequency command, process loop inputs and others. Inputs are programmable for function, scaling (including invert), offset, signal loss detect and sq ...
... Two analog inputs are available. Each input is user configurable to 0 - 10V DC or 4-20 mA. They are user programmable for a variety of uses including frequency command, process loop inputs and others. Inputs are programmable for function, scaling (including invert), offset, signal loss detect and sq ...
Janssen, N. T., R. W. Wies, and R. A. Peterson. Jul 2014
... modes, depending on the wind resources and the consumer grid demand: diesel-only (DO), wind-diesel (WD) and windonly (WO). Few successful systems have been shown to consistently and smoothly transition between wind-diesel and wind-only modes. The University of Alaska – Fairbanks Alaska Center for En ...
... modes, depending on the wind resources and the consumer grid demand: diesel-only (DO), wind-diesel (WD) and windonly (WO). Few successful systems have been shown to consistently and smoothly transition between wind-diesel and wind-only modes. The University of Alaska – Fairbanks Alaska Center for En ...
MAX845 Isolated Transformer Driver for PCMCIA Applications _______________General Description
... approximately double the supply voltage. Since the circuit is symmetrical, the two outputs can be combined with diodes, lightly filtered, then used to power the MAX845, and possibly other light loads as well. The diodes on the primary side may be any fast-switching small-signal diodes, such as the 1 ...
... approximately double the supply voltage. Since the circuit is symmetrical, the two outputs can be combined with diodes, lightly filtered, then used to power the MAX845, and possibly other light loads as well. The diodes on the primary side may be any fast-switching small-signal diodes, such as the 1 ...
AN3157
... In a stand-alone configuration the STPMC1, which sends a pulse train signal with a frequency proportional to the cumulative active power, can directly drive a stepper motor, therefore implementing a simple active energy meter. This device can also be coupled to a microprocessor for multi-function en ...
... In a stand-alone configuration the STPMC1, which sends a pulse train signal with a frequency proportional to the cumulative active power, can directly drive a stepper motor, therefore implementing a simple active energy meter. This device can also be coupled to a microprocessor for multi-function en ...
Circuit Note CN-0130
... CIRCUIT FUNCTION AND BENEFITS In the past, DPS (device power supply) solutions were designed from discrete amplifiers, switches, DACs, resistors, etc. New silicon processes and shrinking silicon now allow highly integrated solutions, but it’s rarely possible to put everything onto one single piece o ...
... CIRCUIT FUNCTION AND BENEFITS In the past, DPS (device power supply) solutions were designed from discrete amplifiers, switches, DACs, resistors, etc. New silicon processes and shrinking silicon now allow highly integrated solutions, but it’s rarely possible to put everything onto one single piece o ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.