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CD23490495
CD23490495

... currents in the respective phases. The term P lavg is the dc or average value of the load power. The term P dc accounts for the losses in the VSI without any dc loads in its dc link. To generate Pdc, a suitable closed-loop dc-link voltage controller should be used, which will regulate the dc voltage ...
Voltage monitoring relays CM-ESS.2 For single-phase AC/DC voltages
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... The voltage monitoring relays CM-ESS.2 are designed for use in single-phase AC and/or DC systems for over- or undervoltage monitoring as well as detection of phase loss. The devices are available with different supply voltage ranges, provide an adjustable tripping delay and work according to the ope ...
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ISO-BOOST 50 SAFEtech ISO-BOOST 100

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Front-end Electronics for ECAL physics prototype
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Katsuhiro Hata, Takehiro Imura, Yoichi Hori, Maximum Efficiency
Katsuhiro Hata, Takehiro Imura, Yoichi Hori, Maximum Efficiency

... loop poles at -1000 rad/s (multiple root). B. Secondary current of wireless power transfer The secondary current of WPT was measured to verify the validity of eq. (15) in each transmitting distance. Then, the secondary voltage was regulated to the amplitude of 18 V by using the DC–DC converter. Fig. ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

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...  The henry (H) is the basic unit of inductance.  One henry causes 1 V to be induced when the current is changing at the rate of 1 A per second. ...
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... Resolving this conflict is a subject choice of the amplifier designer. However, here is a “rule-of-thumb” procedure. However, verify that these results satisfy your design requirements (or the requirements assigned to you by your boss and/or professor!). ...
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... TUT2 presented many ways to achieve a Power Scaling result but the term was never mentioned so very few people ever connected the dots between the book and the Power Scaling Dialogue on our site. There are about 60 distinct ways to do it and endless variations of those. Every method cannot be univer ...
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... The LT1097 is pin compatible to and directly replaces such precision op amps as the OP-07, OP-77, AD707, OP-97, OP177, LM607 and LT1001 with improved price/performance. Compatibility includes externally nulling the offset voltage, as all of the above devices are trimmed with a potentiometer between ...
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Low Power, 350 MHz Voltage Feedback Amplifier AD8039-EP
Low Power, 350 MHz Voltage Feedback Amplifier AD8039-EP

... The maximum safe power dissipation in the AD8039-EP package is limited by the associated rise in junction temperature (TJ) on the die. The plastic encapsulating the die locally reaches the junction temperature. At approximately 150°C, which is the glass transition temperature, the plastic changes it ...
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... voltages and excellent linearity results in accurate computation over an unusually wide input dynamic range. Laser wafer trimming makes multiplication and division with errors as low as 0.25% of reading possible, while typical output offsets of 100 μV or less add to the overall off-the-shelf perform ...
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... II. T HE O PERATIONAL C HARACTERISTICS A. Circuit Configuration Fig. 1 shows the flyback converter with a high voltage flyback transformer, having high turns ratio between the primary and secondary windings considered in this paper. This flyback converter with resonant elements is composed of resona ...
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... The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants cont ...
AD538 (Rev. E) - Electrocomponents
AD538 (Rev. E) - Electrocomponents

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ANALOG INTEGRATED CIRCUITS DESIGN BY MEANS OF GENETIC ALGORITHMS
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... evaluated, according to the open-loop voltage gain obtained, following the process of evaluation described earlier in this section. The best-evaluated individual is saved in memory to be used after in the elitism process. Elitism is a process that introduces in the next generation the best-evaluated ...
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Decibel

The decibel (dB) is a logarithmic unit that expresses the ratio of two values of a physical quantity, often power or intensity. One of these quantities is often a reference value and in this case the decibel expresses the absolute level of the physical quantity. The number of decibels is ten times the logarithm to base 10 of the ratio of two power quantities, or of the ratio of the squares of two field amplitude quantities. One decibel is one tenth of one bel, named in honor of Alexander Graham Bell; however, the bel is seldom used.The definition of the decibel is based on the measurement of power in telephony of the early 20th century in the Bell System in the United States. Today, the unit is used for a wide variety of measurements in science and engineering, most prominently in acoustics, electronics, and control theory. In electronics, the gains of amplifiers, attenuation of signals, and signal-to-noise ratios are often expressed in decibels. The decibel confers a number of advantages, such as the ability to conveniently represent very large or small numbers, and the ability to carry out multiplication of ratios by simple addition and subtraction. By contrast, use of the decibel complicates operations of addition and subtraction.A change in power by a factor of 10 is a 10 dB change. At the half power point an audio circuit or an antenna exhibits an attenuation of 3dB. A change in voltage by a factor of 10 results in a change in power by a factor of 100, which is a 20 dB change. A change in voltage ratio by a factor of two approximately corresponds to a 6 dB change.The decibel symbol is often qualified with a suffix that indicates the reference quantity that has been used or some other property of the quantity being measured. For example, dBm indicates a reference power of one milliwatt, while dBu is referenced to approximately 0.775 volts RMS.In the International System of Quantities, the decibel is defined as a unit of measurement for quantities of type level or level difference, which are defined as the logarithm of the ratio of power- or field-type quantities.
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