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ANALYSIS OF A POWER CONVERSION SYSTEM FOR A WAVE ENERGY CONVERTER
ANALYSIS OF A POWER CONVERSION SYSTEM FOR A WAVE ENERGY CONVERTER

... In this thesis the energy conversion of a Wave Energy Converter is analysed. To start there is an introduction about wave energy and a short presentation of the project. Throughout the project a permanent magnet generator, powered by a floating buoy, is used. A test setup is made to simulate the inc ...
Wall Presentation
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... finding for military men and women. An important feature of this custom power supply is its ability to remain in constant current mode (always on). The device adapts to a wide variety of airborne platforms. The overall configuration provides significant platform installation and endurance benefits w ...
choke_in.pdf
choke_in.pdf

... there is NO turn on surge in a choke input supply, so you don't have to overcurrent spec your fuse, and you don't have to use a slow blow. the transformer is used more efficiently, and the supply is better regulated, ie the difference in rail voltage from idle to full tilt boogie is smaller. for thi ...
DIGITAL POWER METER MODEL 66201/66202
DIGITAL POWER METER MODEL 66201/66202

... ■ Half rack width and 2U height, suitable for system integration ■ Dual current shunt design provides high accuracy over a wide current range (Model 66202) ■ THD and user-specify order distortion measurement (Model 66202) ■ Inrush current and energy measurement (Model 66202) ■ Interface options : US ...
Considerations for Applying Tuned Capacitor Banks
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Sedona Series D (2010)
Sedona Series D (2010)

... Confirm that your head unit or other equipment is turned off while connecting the input jacks and speaker terminals. If you need to replace the power fuse, replace it only with a fuse identical to that suggested by this manual. Using a fuse of a different type or rating may result in damage to your ...
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... phase. The precharge is active, which pushed rapidly the voltage of Vc around VDD/2. The VCO oscillation is started and the phase detector starts operating erratically. The output Xnor is an interesting indication of what happens inside the phase detector. We see that the phase difference is very im ...
RPR-220UC30N
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... shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability th ...
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... EDGE. The device integrates a high-efficiency PWM stepdown converter for medium- and low-power transmission with an 85mΩ (typ) low dropout (LDO) bypass regulator, in parallel with the step-down converter, enabling highpower transmission. The IC uses an analog input driven by an external DAC to contr ...
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... RFMD’s SGC-6489Z is a high performance SiGe HBT MMIC amplifier utilizing a Darlington configuration with an active bias network. The active bias network provides stable current over temperature and process Beta variations. Designed to run directly from a 5V supply, the SGC-6489Z does not require a d ...
MAX212 +3V-Powered, Low-Power, True RS-232 Transceiver ________________General Description
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... The MAX212 line driver/receiver is intended for 3Vpowered EIA/TIA-232E and V.28/V.24 communications interfaces where 3 drivers and 5 receivers are required. The operating voltage range extends from 3.6V down to 3.0V while still maintaining true RS-232 and EIA/TIA-562 transmitter output voltage level ...
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... B r i e f l y, phase trip corresponds to the actual load current through the conductor while ground trip is the unbalance of the three-phase currents. Ground tripping will trip all three phases below the phase trip minimum trip value since ground tripping can be the result of any unbalance on the sy ...
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...  Assuming the motor has been operating at moderate speed, when it is suddently subjected to a heavier load, the first effect is to slow down the motor.  Slowing the motor reduces back emf generated because back emf is directly proportional to speed.  Reduced back emf makes the line voltage to pus ...
MAX17498A/MAX17498B/MAX17498C AC-DC and DC
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... with a minimum number of external components. They contain all the control circuitry required to design wide input voltage isolated and nonisolated power supplies. The MAX17498A has its rising/falling undervoltage lockout (UVLO) thresholds optimized for universal offline (85V AC to 265V AC) applicat ...
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... As with the hardware, small changes were made to implement the average current mode control in software. The voltage control loop remains unchanged, and is still running in the 1 ms interrupt. The current loop was integrated into the fastest (50 μs) interrupt as shown in Figure 2. The current contro ...
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... gain of the AD71x family assure 12-bit accuracy over the full operating temperature range. ...
three-phase bridge rectifiers (b6)
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... in Fig.13.1. They are already known the DC loads which must be supplied with a well filtered DC current, such as the R-L passive loads (Fig.13.1.a) or the R-L-E active loads (e.g. DC motors → Fig.13.1.b). Even the frequency of the pulses from the waveform of the output DC voltage (fp = 6×f = 300Hz) ...
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... A Gel cell is a “recombinant” battery. This means that the oxygen that is normally produced on the positive plate in all lead-acid batteries recombines with the hydrogen given off by the negative plate. The “recombination” of the hydrogen and oxygen produces water (H20), which replaces the moisture ...
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High precision specification and test of power converters at CERN
High precision specification and test of power converters at CERN

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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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