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... Can be many times larger than the DC current ...
PowerSpec HDF High Performance Fluorescent Dimming Ballasts
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 ...
MAX531/MAX538/MAX539 +5V, Low-Power, Voltage-Output, Serial 12-Bit DACs _______________General Description
MAX531/MAX538/MAX539 +5V, Low-Power, Voltage-Output, Serial 12-Bit DACs _______________General Description

... while the MAX531 comes in 14-pin DIP and SO packages. All parts have been trimmed for offset voltage, gain, and linearity, so no further adjustment is necessary. The MAX538’s buffer is fixed at a gain of +1 and the MAX539’s buffer at a gain of +2. The MAX531’s internal op amp may be configured for a ...
Document
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... and techniques used in lower power microelectronics, these substrates must carry higher currents and provide a higher voltage isolation (up to several thousand volts). They also must operate over a wide temperature range (up to 150 or 200°C). Direct bonded copper (DBC) substrates are commonly used i ...
Color - How Things Work
Color - How Things Work

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isolation transformer
isolation transformer

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Power and distribution transformers
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MAX44206 180MHz, Low-Noise, Low-Distortion, Fully Differential
MAX44206 180MHz, Low-Noise, Low-Distortion, Fully Differential

... Junction-to-Case Thermal Resistance (θJC)..................5°C/W Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/therm ...
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... 6. Meter monitoring shall be via MODBUS (RS 485) connection to each transfer switch and generator. B. Building Electric meter, when configured for generator monitoring, shall be set up to perform the following: 1. Monitor generator load via Modbus communications link to the generator control panel a ...
instructions installation of load-share terminals for vlt
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Fish Tank Project Overview EAS 199B

... [ ] Arduino code to turn on the salinity sensor, display individual salinity readings on the Serial Monitor is complete. [ ] All components are verified with tap water and tap water mixed with table salt. [ ] Water bottles for DI and salty water are obtained. Procedure for collecting calibration dat ...
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Leakage Current Mechanisms and Reduction Techniques in
Leakage Current Mechanisms and Reduction Techniques in

... DVTS uses body biasing to adaptively change Vth based on the performance demand. (active leakage reduction technique) Low Vth through ZBB is delivered when high performance is required, and high Vth through RBB is delivered when performance demand is low. A DVTS hardware uses continuous body biasing ...
Kaman DAQ-JACK manual - Kaman Precision | Position sensors
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... designed to supply power to sensors and other instrumentation. The unit can supply up to 1.5W of total power. This means that it can supply 15V@100mA or ±15V@50mA. The supply output is programmable from ±5V to ±24V. The negative supply is always present but does not have to be used. The negative sup ...
Single Transistor Crystal Oscillator Circuits
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... SINGLE TRANSISTOR CRYSTAL OSCILLATOR CIRCUITS The majority of modern crystal oscillator circuits fall into one of two design categories, the Colpitts / Clapp oscillator and the Pierce oscillator. There are other types of single transistor oscillators ( Hartley and Butler for example ), but their use ...
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High Power Ku-band GaN MMIC and Internally Matched HEMTs for Satellite Communication
High Power Ku-band GaN MMIC and Internally Matched HEMTs for Satellite Communication

... required to secure the necessary communication quality for a satellite communication earth station is 45 dBm at the power supply voltage of 24 V. The device has the world’s top level of saturated output power and linear output power as a product that uses a miniature package. ...
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MAX3238 +3.0V to +5.5V, 1µA, up to 250kbps, True _______________General Description
MAX3238 +3.0V to +5.5V, 1µA, up to 250kbps, True _______________General Description

... Note 1: V+ and V- can have a maximum magnitude of +7V, but their absolute difference can not exceed +13V. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any othe ...
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... WECS handles frequency support and can be significantly burdened although the torque stress on conventional generators is relieved. The frequent abrupt torque variation on the drivetrain may increase operation and maintenance (O&M) cost of the mechanical components, particularly when gear presents i ...
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VHDL Synthesis for High-Reliability Systems

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... Complete range of modular auxiliaries designed to be mounted without any tools Fuseless compact starter with necessary accessories in four different frame sizes linking the line with the rest of control devices (contactors M and CL, and overload relays) ...
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supplementary information

... . The absolute magnitude of PC collected differs by factor of ~10 to 20, with the difference getting larger as incident power is increased. (b) Plot of the predicted CW to pulsed PC ratio for a given initial temperature of the the hot electron gas (for a pulsed excitation measurement) . Figure 3b sh ...
< 1 ... 384 385 386 387 388 389 390 391 392 ... 1974 >

Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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