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RHRP8120 - Intranet
RHRP8120 - Intranet

... The RHRP8120 is a hyperfast diodes with soft recovery characteristics (trr < 55ns). It has half the recovery time of ultrafast diodes and is of silicon nitride passivated ion-implanted epitaxial planar construction. ...
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- Opus

... • And the overall Energy by: ...
$doc.title

ISSCC 2011 / SESSION 22 / DC/DC CONVERTERS / 22.7
ISSCC 2011 / SESSION 22 / DC/DC CONVERTERS / 22.7

... Power management in portable devices demands small size, low cost as well as long battery lifetime, which in turn drive the development of single-inductor multiple-output (SIMO) converters [1-5]. Due to the battery voltage variation during usage and the wide-range dynamic voltage scaling (DVS) appli ...
Low saturation voltage type 3-pin regulator
Low saturation voltage type 3-pin regulator

... If these ICs are used in such a way that the allowable power dissipation level is exceeded, an increase in the chip temperature could cause a reduction in the current capability or could otherwise adversely affect the performance of the IC. Make sure a sufficient margin is allowed so that the allowa ...
PHzMon_Documentation
PHzMon_Documentation

Transformers
Transformers

MJE340
MJE340

... Added: VCBO in Table 2, VCE(sat) and VBE(on) in Table 4 ...
modeling and simulation of permanent magnet synchronous motor
modeling and simulation of permanent magnet synchronous motor

... of currents and voltages in different parts of the inverter and motor under transient and steady conditions. The losses in different parts are calculated, facilitating the design of the inverter. A closed loop control system with a Proportional Integral (PI) controller in the speed loop has been des ...
LF411 Low Offset Low Drift JFET Input Operational Amplifier
LF411 Low Offset Low Drift JFET Input Operational Amplifier

... the feedback pole by minimizing the capacitance from the input to ground. A feedback pole is created when the feedback around any amplifier is resistive. The parallel resistance and capacitance from the input of the device (usually the inverting input) to AC ground set the frequency of the pole. In ...
LMV321, LMV358, LMV324 General Purpose, Low Voltage, Rail-to-Rail Output Amplifiers Description
LMV321, LMV358, LMV324 General Purpose, Low Voltage, Rail-to-Rail Output Amplifiers Description

... amplifiers; available in MSOP-8 and SOIC-8 packages LMV324 directly replaces other industry standard LMV324 amplifiers; available in SOIC-14 package Fully specified at +2.7V and +5V supplies Operating temperature range: -40°C to +125°C ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,

Adding voltage rang for old multimeter
Adding voltage rang for old multimeter

... First of all, we set range of multimeter which called “a voltmeter”. Normally it same the common devices, when current flow through them cause a internal impedance (RM) and voltage across that range. As principle, the good voltmeter that must have the many more internal resistances. And lowest curre ...
Switched Reluctance Motor - University of Technology Sydney
Switched Reluctance Motor - University of Technology Sydney

Dr. Andrei Grebennikov
Dr. Andrei Grebennikov

... • use active device with stability factor K > 1 • if it is impossible to choose active device with K > 1, provide circuit stability factor KT > 1 on operating frequency by appropriate choice of real parts of source and load immitances ...
Not Recommended for New Designs
Not Recommended for New Designs

RMR 50 480 - Acuity Brands
RMR 50 480 - Acuity Brands

... unique sensor is line powered and enables direct switching of 480 VAC lighting loads. Designed to recess mount into a linear high bay fluorescent fixture using standard 4” x 4” junction box spacing, this sensor’s view pattern covers the area lit by three typically spaced T-5 or T-8 fixtures used in ...
M5482 - STMicroelectronics
M5482 - STMicroelectronics

... DMAX OMIN R = ---------------------------------------------------------------N L MAX D ...
B1 Buffer Preamp
B1 Buffer Preamp

BU941
BU941

... Figure 10. Functional test wafeforms ...
Power Factor Correction Regulator BLR-CX 6 to 14 steps
Power Factor Correction Regulator BLR-CX 6 to 14 steps

... displayed, then control function is stopped. Reasons for this are: manual operation is active, control function is switched-off, meas. current is less than 15mA, temperature is too high, voltage is out of range or harmonic level of voltage is too high. Over- and undervoltage monitoring: BLR-CX is eq ...
LOW-POWER 50-mA LOW-DROPOUT Linear Regulators
LOW-POWER 50-mA LOW-DROPOUT Linear Regulators

... Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is cur ...
Monolithic Power Systems, Inc.
Monolithic Power Systems, Inc.

... This technology ensures the lamp will strike at any temperature and in any environment. In addition no additional components are required for varying the frequency of the lamp. ...
AngiePaperWithLudasEditsNoPhoto
AngiePaperWithLudasEditsNoPhoto

... models the membrane capacitance of a neuron. As the capacitor charges, the voltage across the membrane and ground, which models extracellular space, begins to rise. Eventually the membrane voltage becomes great enough to overcome the threshold before the diode. Current will then begin to flow throug ...
MAX98502 Boosted 2.2W Class D Amplifier with Automatic Level Control General Description
MAX98502 Boosted 2.2W Class D Amplifier with Automatic Level Control General Description

... Junction-to-Ambient Thermal Resistance (qJA)...........49°C/W Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial ...
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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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