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Microphones - Harris Ac Music
Microphones - Harris Ac Music

... rather than the pressure. As the ribbon vibrates within its magnetic field, it generates a tiny voltage that corresponds to these changes in velocity. In classic ribbon designs, this level is very low compared to typical dynamic mics, and a step-up transformer boosts both the output voltage and impe ...
Page 1 of 5 SUPPLYING POWER ON THE 1-WIRE NET 1
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... cable properties will help in understanding how such an arrangement affects net performance. In a CAT 5 cable with multiple twisted pairs, on average any given conductor in a pair is adjacent to a second conductor in another pair for half its length. Typically, the capacitance between the two conduc ...
Note: Self-characterizing ultrafast pulse shaper for rapid pulse switching
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... The upper left panel in Fig. 2 shows the raw spectral interferometry signal when a sinusoidal phase is programmed onto the shaped pulse. We have introduced a slight delay between the reference and shaped pulses by means of a glass slide in order to more easily perform the inversion of the interferog ...
Comparison between NERC VAR-001-1a and Alberta VAR-001-AB-1a Voltage and Reactive Control
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... Proposed Terms for the Consolidated Authoritative Document Glossary 3 : “aggregated generating facilities” means an aggregation of generating units, including any reactive power resources, which are: (i) designated by the ISO; and (ii) situated in the same proximate location at one or more point of ...
MAX16128/MAX16129 Load-Dump/Reverse-Voltage Protection Circuits General Description Features
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... (FLAG) asserts when a fault event occurs. Two external back-to-back n-channel MOSFETs provide reverse-voltage protection and also prevent reverse current during a fault condition. Compared to a traditional reverse-battery diode, this approach minimizes power dissipation and voltage drop. The MAX1612 ...
LTC5507 - 100kHz to 1GHz RF Power Detector.
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... The VHC4040 is an advanced high-speed CMOS device fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHC4040 is a 12-stage counter which increments on the negative edge of ...
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... Counterfeiting of semiconductor parts is a growing problem in the industry. All manufactures of semiconductor products are experiencing counterfeiting of their parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard perform ...
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... considerations should be taken to ensure proper operation of the LP28200A. GATE pin rise and fall times are 20ns and 50ns respectively (with CGATE = 2000pF). To minimize radiation, the catch diode, pass transistor and the input bypass capacitor traces should be kept as short as possible. The positiv ...
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... Where h is the estimated efficiency (0.88) The input line voltage is full wave rectified and there is a small bulk film capacitor (C3) across the output of the bridge rectifiers (D1, D2, D3, and D4). The capacitor is there to decouple the high frequency switching and provide a low impedance source f ...
Aalborg Universitet
Aalborg Universitet

M190 M210 Installation and Operation
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... The Enphase Microinverter maximizes energy production from your photovoltaic (PV) array. Each Enphase Microinverter is individually connected to one PV module in your array. This unique configuration means that an individual Maximum Peak Power Point Tracker (MPPT) controls each PV module. This insur ...
Laboratory Test Analysis of Power Semiconductors
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... Fig. 1 Step-down converter with ohmic-inductive load If the ohmic-inductive load is completed with a dc voltage source, the circuit corresponds to a dc motor in a stationary working point. The semiconductors can also be divided by the charge carriers which are used for the current flow. The MOSFET i ...
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... oscillator clock periods at any time following soft-start, the MAX1801 is disabled to prevent excessive output current. Restart the controller by cycling the voltage at DCON or IN to GND and back to a normal state. For a step-up application, short-circuit current is not limited, due to the DC curren ...
AD8016
AD8016

... may cause a shift in parametric performance due to a change in the stresses exerted on the die by the package. The output stage of the AD8016 is designed for maximum load current capability. As a result, shorting the output to common can cause the AD8016 to source or sink 2000 mA. To ensure proper o ...
MAX1638 High-Speed Step-Down Controller with Synchronous Rectification for CPU Power General Description
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... Each pulse from the oscillator sets the main PWM latch that turns on the high-side switch for a period determined by the duty factor (approximately VOUT / VIN). The current-mode feedback system regulates the peak inductor current as a function of the output voltage error signal. Since average induct ...
PDF
PDF

... mode. Multilevel converters not only can generate the output voltages with very low distortion, but also can decrease the dv/dt stresses. Thus Electro Magnetic Compatibility (EMC) problems can be reduced. Multilevel inverters are synthesizing a large number of levels have lot of merits such as impro ...
Digital Controls Technology
Digital Controls Technology

... PowerCommand 3.3 with Masterless Load Demand (MLD) Control Technology The PowerCommand 3.3 MLD is a fully featured genset control with built-in Masterless Load Demand (MLD) technology. The integration of all control functions including voltage regulation, governing and paralleling into a single cont ...
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Three-phase electric power



Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.
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