Protection Fundamentals - Levine Lectronics and Lectric
... 1. One-line diagram of the system or area involved 2. Impedances and connections of power equipment, system frequency, voltage level and phase sequence 3. Existing schemes 4. Operating procedures and practices affecting protection 5. Importance of protection required and maximum allowed clearance ti ...
... 1. One-line diagram of the system or area involved 2. Impedances and connections of power equipment, system frequency, voltage level and phase sequence 3. Existing schemes 4. Operating procedures and practices affecting protection 5. Importance of protection required and maximum allowed clearance ti ...
RMR1781ME68F9F-1600
... 1. Maximum DC value may not be greater than 1.425V. The DC value is the linear average of VDD/VDDQ(t) over a very long period of time (e.g., 1 sec). 2. If maximum limit is exceeded, input levels shall be governed by DDR3 specifications. 3. Under these supply voltages, the device operates to this DDR ...
... 1. Maximum DC value may not be greater than 1.425V. The DC value is the linear average of VDD/VDDQ(t) over a very long period of time (e.g., 1 sec). 2. If maximum limit is exceeded, input levels shall be governed by DDR3 specifications. 3. Under these supply voltages, the device operates to this DDR ...
Temperature Measurements with Thermocouples
... has an output that depends on the temperature of the measurement point. Semiconductor sensors, thermistors, or RTDs are commonly used to measure the reference-junction temperature. For example, several National Instruments thermocouple measurement devices include high-accuracy thermistors located ne ...
... has an output that depends on the temperature of the measurement point. Semiconductor sensors, thermistors, or RTDs are commonly used to measure the reference-junction temperature. For example, several National Instruments thermocouple measurement devices include high-accuracy thermistors located ne ...
M1601_Intersection_Traffic_Light_PDA_Manual
... This Power Distribution Assembly (PDA) was designed as a “UPS ready” power supply for traffic cabinets. This power supply allows for easy connection of a UPS to the power supply and allows the UPS to be a detachable unit that may be added or removed from the panel at any time, without interruption o ...
... This Power Distribution Assembly (PDA) was designed as a “UPS ready” power supply for traffic cabinets. This power supply allows for easy connection of a UPS to the power supply and allows the UPS to be a detachable unit that may be added or removed from the panel at any time, without interruption o ...
AD5291 数据手册DataSheet 下载
... Resistor performance mode (see the Resistor Performance Mode section). The terms resistor performance mode and R-Perf mode are used interchangeably. ...
... Resistor performance mode (see the Resistor Performance Mode section). The terms resistor performance mode and R-Perf mode are used interchangeably. ...
Ovonic Memory Switching in Multimaterial Fibers
... operation). The resultant crystalline features stabilize the material into a low resistance state even when no voltage is applied. Reversibly, an ON to OFF transition (RESET operation) can occur with the application of an even higher current pulse concentrated along the low-R channel. The current pu ...
... operation). The resultant crystalline features stabilize the material into a low resistance state even when no voltage is applied. Reversibly, an ON to OFF transition (RESET operation) can occur with the application of an even higher current pulse concentrated along the low-R channel. The current pu ...
AD9887 - Analog Devices
... integrated interface solution for FPDs. The AD9887 includes an analog interface with a 140 MHz triple ADC with internal 1.25 V reference, PLL to generate a pixel clock from HSYNC, programmable gain, offset, and clamp control. The user provides only a 3.3 V power supply, analog input, and HSYNC. Thre ...
... integrated interface solution for FPDs. The AD9887 includes an analog interface with a 140 MHz triple ADC with internal 1.25 V reference, PLL to generate a pixel clock from HSYNC, programmable gain, offset, and clamp control. The user provides only a 3.3 V power supply, analog input, and HSYNC. Thre ...
PowerSpec HDF High Performance Fluorescent Dimming Ballasts
... circuitry, surge protection, and testing/calibration. The PowerSpec HDF Ballast achieves its outstanding performance by incorporating a unique electronic feedback circuit. This circuit monitors the lamp performance and continuously corrects the current input and cathode voltage to achieve consistent ...
... circuitry, surge protection, and testing/calibration. The PowerSpec HDF Ballast achieves its outstanding performance by incorporating a unique electronic feedback circuit. This circuit monitors the lamp performance and continuously corrects the current input and cathode voltage to achieve consistent ...
EL2003 - Electric Circuits#
... 1. Desoer and Kuh, Basic Circuit Theory, McGraw Hill , latest ed. ...
... 1. Desoer and Kuh, Basic Circuit Theory, McGraw Hill , latest ed. ...
Incandescent Lamp Application Information
... When lamps operate from a constant or nearly constant current source, as in the case of a series resistance, life is reduced approximately 50%. In both cases, the increase in resistance from Tungsten evaporation results in a higher voltage across the lamp. However, in many situations, a series resis ...
... When lamps operate from a constant or nearly constant current source, as in the case of a series resistance, life is reduced approximately 50%. In both cases, the increase in resistance from Tungsten evaporation results in a higher voltage across the lamp. However, in many situations, a series resis ...
an area efficient 64-bit square root carry
... consumption of their circuits. In the process, it is found that the schematic given in [4] contains an error and the circuit has been rectified to ensure its correct functionality before simulations. A simulation environment realistic to the actual circuit operational conditions has been set up, whe ...
... consumption of their circuits. In the process, it is found that the schematic given in [4] contains an error and the circuit has been rectified to ensure its correct functionality before simulations. A simulation environment realistic to the actual circuit operational conditions has been set up, whe ...
S280-16-4 (Discontinued Product)
... ground lug to measure resistance. Compare the reading on the meter to the values in Table 2. ...
... ground lug to measure resistance. Compare the reading on the meter to the values in Table 2. ...
S-8261 Series - SII Semiconductor Corporation
... (3) Delay times (overcharge: tCU, overdischarge: tDL, overcurrent 1: tlOV1, overcurrent 2: tlOV2) are generated by an internal circuit. No external capacitor is necessary. Accuracy: ±20% (4) Three-step overcurrent detection circuit is included (overcurrent 1, overcurrent 2 and load short-circuiting) ...
... (3) Delay times (overcharge: tCU, overdischarge: tDL, overcurrent 1: tlOV1, overcurrent 2: tlOV2) are generated by an internal circuit. No external capacitor is necessary. Accuracy: ±20% (4) Three-step overcurrent detection circuit is included (overcurrent 1, overcurrent 2 and load short-circuiting) ...
Octal, 12-/16-Bit, I2C, denseDACs with 5 ppm/°C On-Chip
... output range of 5 V depending on the option selected. Devices with 1.25 V reference selected operate from a single 2.7 V to 5.5 V supply. Devices with 2.5 V reference selected operate from 4.5 V to 5.5 V. The on-chip reference is off at power-up, allowing the use of an external reference. The intern ...
... output range of 5 V depending on the option selected. Devices with 1.25 V reference selected operate from a single 2.7 V to 5.5 V supply. Devices with 2.5 V reference selected operate from 4.5 V to 5.5 V. The on-chip reference is off at power-up, allowing the use of an external reference. The intern ...
Installation Instructions
... see IOM5004 (TMC2) 2. Manually open and close valve to ensure freeness of operation. Make sure valve and Triac actuator rotate in the same direction and are in the same position (i.e. valve closed, actuator closed). If not sure, electrically operate the actuator to determine its operating range. The ...
... see IOM5004 (TMC2) 2. Manually open and close valve to ensure freeness of operation. Make sure valve and Triac actuator rotate in the same direction and are in the same position (i.e. valve closed, actuator closed). If not sure, electrically operate the actuator to determine its operating range. The ...
Surge Protection Application Guide
... that we combine several technologies to build the highest quality, industrial grade series suppressor on the market today. The Edco PC642-Series (shown below) uses SADs and GDTs together in a circuit, but is separated by PTCs, which provide adequate resistance to separate the components. This combin ...
... that we combine several technologies to build the highest quality, industrial grade series suppressor on the market today. The Edco PC642-Series (shown below) uses SADs and GDTs together in a circuit, but is separated by PTCs, which provide adequate resistance to separate the components. This combin ...
C Load - Keysight
... − Connect Channel-1 and Channel-2 probes to the “Probe Comp” terminal (same as Demo2). − Adjust V/div and s/div knobs to display both waveforms on-screen. − Using a small flat-blade screw driver, adjust the variable probe compensation capacitor (Ccomp) on both probes for a flat (square) ...
... − Connect Channel-1 and Channel-2 probes to the “Probe Comp” terminal (same as Demo2). − Adjust V/div and s/div knobs to display both waveforms on-screen. − Using a small flat-blade screw driver, adjust the variable probe compensation capacitor (Ccomp) on both probes for a flat (square) ...
Factory Acceptance Test (FAT) of protection relays Jim Sandbacka
... Producing power with a generator has got its risks. Sometimes faults might appear, both in the distribution network and near the generator. In such cases protective relays come in handy. Nor do they only work as measuring devices; they also protect the generator itself. But knowing that a protective ...
... Producing power with a generator has got its risks. Sometimes faults might appear, both in the distribution network and near the generator. In such cases protective relays come in handy. Nor do they only work as measuring devices; they also protect the generator itself. But knowing that a protective ...
875115357006 Datasheet
... Before applying adhesives or coating materials, make sure that the following points are fulfilled: •Take care that the surface and capacitor is dry and clean before applying adhesive or coating, to avoid any contamination with flux residues or cleaning solvents. •Assure that no flux residue or spot ...
... Before applying adhesives or coating materials, make sure that the following points are fulfilled: •Take care that the surface and capacitor is dry and clean before applying adhesive or coating, to avoid any contamination with flux residues or cleaning solvents. •Assure that no flux residue or spot ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.