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BQ24155 数据资料 dataSheet 下载
BQ24155 数据资料 dataSheet 下载

... load on VREF is not allowed. ...
Transparent Current Mirrors Using a-GIZO TFTs: Simulation
Transparent Current Mirrors Using a-GIZO TFTs: Simulation

... technology are fabrication at room-temperature [4], [5], better optical transparency and the relatively high mobility. These a-GIZO TFT applications are not only confined to displays (AMOLED) [6], but also extended to sensors [7]. The a-GIZO TFT technology is more recent among others. Hence the circ ...
8 Application of dc motors
8 Application of dc motors

... Ward-Leonard arrangement. A schematic diagram of Ward-Leonard arrangement is shown in Fig. 45. By controlling the field of the Ward-Leonard generator one can get a variable voltage at its terminals which is used for starting the motor. The second method of starting with increased armature circuit re ...
Chapter 34 Homework
Chapter 34 Homework

... The frequency of energy oscillations, in the capacitor or the inductor, in an L-C circuit is twice the frequency of current or charge oscillations, since the energy does not depend on the direction of the current flow. Mathematically speaking, the electric or magnetic potential energy depends on the ...
MAX125/MAX126 2x4-Channel, Simultaneous-Sampling 14-Bit DAS General Description
MAX125/MAX126 2x4-Channel, Simultaneous-Sampling 14-Bit DAS General Description

... and a bank of four simultaneous-sampling T/H amplifiers that preserve the relative phase information of the sampled inputs. The MAX125/MAX126 have two multiplexed inputs for each T/H, allowing a total of eight inputs. In addition, the converter is overvoltage tolerant to ±17V; a fault condition on a ...
Example Temperature Measurement
Example Temperature Measurement

Extending the MFJ-927 to 160-Meters
Extending the MFJ-927 to 160-Meters

... In the “Reviews” section of this website I reviewed the CG-3000, MFJ-927, and the SG230 auto-tuners specifically for use with the popular 43-foot vertical antenna. As discussed in that review only the SG-230 had enough internal inductance to tune the 43foot vertical on 160 meters, so I described an ...
ADG752 数据手册DataSheet下载
ADG752 数据手册DataSheet下载

Annex C: Bid Submission Forms
Annex C: Bid Submission Forms

... a) All the information and statements made in this Bid are true and we accept that any misrepresentation contained in it may lead to our disqualification; b) We are currently not on the removed or suspended vendor list of the UN or other such lists of other UN agencies, nor are we associated with, a ...
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Project Report

... Prof. Dr. Ayşegül Akdoğan – Şekil Hafızalı Alaşımlar (Shape Memory Alloys) ...
Demonstrate knowledge of single and three phase transformers
Demonstrate knowledge of single and three phase transformers

... The resistance of each winding is relatively low; however each winding will have resistance. The current flowing through the resistance of the windings will result in heat and therefore losses. These losses are known as copper losses. The copper losses will be equal to: ...
INDuCtOR 101
INDuCtOR 101

... meaning they pass low frequency signals such as the DC power and attenuate higher frequency signals which consist of mainly noise. Band pass or low pass filters are commonly made up of inductor and capacitor combinations. ...
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doc - AWWU

... from 100% to 120% of nominal. Equalize voltage shall be adjustable up to 15% above float voltage. Output voltage adjustments shall be on separate potentiometers in the charger. The charger shall incorporate automatic current limiting with a rectangular current limit characteristic, and shall be capa ...
IGBT - Book - Extractions
IGBT - Book - Extractions

Ultralow Distortion Differential ADC Driver ADA4938-2 Preliminary Technical Data
Ultralow Distortion Differential ADC Driver ADA4938-2 Preliminary Technical Data

... Setting the Output Common-Mode Voltage .......................... 21 Layout, Grounding, and Bypassing.............................................. 22 ...
62-0395_B - H Series Class 100 Meter Installation
62-0395_B - H Series Class 100 Meter Installation

103_unit_2
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... devices such as ionized gases, semiconductors, and other devices when operated in the nonlinear part of their characteristics. Figure 27 shows Ohms Law in three forms. The main form, I = E=IxR E  R, is the form used to describe Ohms Law. The Law states that the current (I) is directly proportiona ...
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... are also challenges associated with the DG, among which islanding detection is an important and difficult one. An islanding is a condition in which a portion of an Area Electric Power System (EPS) is energized solely by one or more Local EPSs through the associated point of common coupling (PCC) whi ...
AN18 - Power Gain Stages for Monolithic Amplifiers
AN18 - Power Gain Stages for Monolithic Amplifiers

... Most monolithic amplifiers cannot supply more than a few hundred milliwatts of output power. Standard IC processing techniques set device supply levels at 36V, limiting available output swing. Additionally, supplying currents beyond tens of milliamperes requires large output transistors and causes u ...
Aalborg Universitet controller
Aalborg Universitet controller

... output current polarity. In general, when the inverter output voltage and the inverter output current have the same polarity, the inverter voltage magnitude will be reduced; otherwise, the dead time will give a magnitude increase of the inverter output voltage, as illustrated in Fig. 3. This implies ...
J.M. Rivas,  O. Leitermann, Y. Han, and D.J. Perreault, “A Very High Frequency dc-dc Converter Based on a Phi-2 Resonant Inverter,” 2008 IEEE Power Electronics Specialists Conference , June 2008, pp. 1657 1666
J.M. Rivas,  O. Leitermann, Y. Han, and D.J. Perreault, “A Very High Frequency dc-dc Converter Based on a Phi-2 Resonant Inverter,” 2008 IEEE Power Electronics Specialists Conference , June 2008, pp. 1657 1666

... circulating within the inverter and the maximum power that can be delivered. Notice that in the schematic of Fig. 2 the magnetizing inductance of the autotransformer functions as the rectifier’s resonant inductance (LR in Fig. 3). Designing an autotransformer ...
MAX221E ±15kV ESD-Protected, +5V, 1µA, Single RS-232 Transceiver with AutoShutdown General Description
MAX221E ±15kV ESD-Protected, +5V, 1µA, Single RS-232 Transceiver with AutoShutdown General Description

... 200pF storage capacitor and zero discharge resistance. Its objective is to emulate the stress caused not only by RS-232 inputs and outputs, but also by contact that occurs due to handling and assembling during manufacturing. Therefore, after PC board assembly, the Machine Model is less relevant to I ...
Computed Envelope Linearity of Several FM Broadcast Antenna
Computed Envelope Linearity of Several FM Broadcast Antenna

... “The total gain of the transmission signal path as verified at the antenna output shall be flat to within +/- 0.5 dB for all frequencies between (Fc – 200 kHz) to (Fc +200 kHz), where Fc is the RF channel frequency.” “ The differential group delay variation of the entire transmission signal path (ex ...
LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS
LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS

... (500 µV). These advantages, in combination with good common-mode rejection and supply voltage rejection, make these devices a good choice for new state-of-the-art designs as well as for upgrading existing designs. In general, many features associated with bipolar technology are available in LinCMOS ...
AN#51
AN#51

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Current source



A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.
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