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19 V - 75 W laptop adapter with tracking boost PFC pre
19 V - 75 W laptop adapter with tracking boost PFC pre

Reverse Voltage Behavior of Solid Tantalum Capacitors
Reverse Voltage Behavior of Solid Tantalum Capacitors

SGC2463Z 数据资料DataSheet下载
SGC2463Z 数据资料DataSheet下载

... RFMD’s SGC2463Z is a high performance SiGe HBT MMIC amplifier utilizing a Darlington configuration with a patented active bias network. The active bias network provides stable current over temperature and process Beta variations. Designed to run directly from a 3V supply, the SGC2463Z does not requi ...
MAX5877 14-Bit, 250Msps, High-Dynamic-Performance, Dual DAC with LVDS Inputs General Description
MAX5877 14-Bit, 250Msps, High-Dynamic-Performance, Dual DAC with LVDS Inputs General Description

... Reference I/O. Output of the internal 1.2V precision bandgap reference. Bypass with a 1µF capacitor to GND. REFIO can be driven with an external reference source. See Table 1. ...
An equivalent circuit formulation for three-phase power
An equivalent circuit formulation for three-phase power

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...  Used to sense particular chemical components, such as various gas species. ...
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R01413661384

... at every zero crossing of phase a supply voltage. The sampling can also be performed at a quarter-cycle depending up on the symmetry of the dc link voltage wave form. The drawback of this conventional controller is that its transient response is slow, especially for fast changing loads. Also, the de ...
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... the nonlinear current components are represented by vectors to highlight their interactions. In this example, the angle between vectors 0 and [Oes]is less than that between 8 and C [OB@](i.e., 0, e 0, ). As a result, their resultant vectors will exhibit different magnitudes. So, the IMD3 at 20, -0,w ...
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EEE 121-4246

MAX14984 Enhanced VGA Port Protector with Monitor General Description
MAX14984 Enhanced VGA Port Protector with Monitor General Description

... required to detect the insertion and removal of a monitor and automatically connect the graphics controller when a monitor is detected. A switched 5V output provides up to 55mA to the VGA port in addition to normal VGA signals. The MAX14984 features a single active-low enable input to control two 5V ...
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PARTICLE COARSENING IN - University of Wisconsin–Madison

... the voltage on the left side of the “box” in Fig. 1 and the voltage on the right side. By using the slightly more complicated arrangement of electrical components, the results obtained agree very well with theory. In contrast, a “bare” diode does not yield such precise results. ...
ISL45042A - Intersil
ISL45042A - Intersil

... RINTERNAL in Figure 6). The impedance of this resistor is 400kΩ to 500kΩ. If your design is using a resistor divider network to generate the 3.3V supply (for both VDD and CE to enable programming) from a larger voltage source, the 400kΩ (worst case) resistor needs to be taken into account as a paral ...
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GE Controls | Installation Guide | Centralized Lighting Control Panel

... These instructions do not cover all details or variations in equipment nor do they provide for every possible contingency that may be met in connection with installation, operation or maintenance. Should further information be desired or should particular problems arise that are not covered for the ...
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Motorola MC145436A - Telephone Tribute

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Basic Concepts of Doubly Fed Induction Generator Driven by

Specifying de-rating factors.
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An Efficient Field-Circuit Coupling Based on a Temporary

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... size (SOT-23-5 and MSOP-8 packages), they provide low input bias current (5pA), low quiescent currrent (220µA/ channel), and high open-loop gain (94dB). Either single (+4.5V to +36V) or dual (±2.25 to ±18V) supplies can be used. The input common-mode voltage range includes the positive supply—suitab ...
ADM6819 数据手册DataSheet 下载
ADM6819 数据手册DataSheet 下载

... When the primary supply is above the desired threshold, the ADM6819/ADM6820 are designed to control the N-channel FET in the secondary power path to enable the secondary supply. The GATE pin is held low while both VCC1 and VCC2 are below the undervoltage threshold, ensuring that the FET is held off. ...
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Customer Service Standards for Connection

... Part 2 of the document concerns guaranteed customer service standards and Part 3 concerns Endeavour Energy’s supply standards and related information. This document has been developed in accordance with the NSW Department of Trade and Investment (previously Industry and Investment NSW) “Code of Prac ...
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FAN7085_GF085 High Side Gate Driver with Recharge FET F

... and high speed driving of MOSFET or IGBT, which operates up to 300V. Fairchild's high-voltage process and common-mode noise cancellation technique provide stable operation in the high side driver under high-dV/dt noise circumstances. Logic input is compatible with standard CMOS outputs. The UVLO cir ...
Current Source Biasing
Current Source Biasing

... • Related to PWL concept in which the V-I characteristics are modeled by a straight line tangent to the curve at a particular operating point • With three terminal devices the relationship between the output port and input port must be taken into account. This generally leads to a PWL model with a l ...
implementation of multi-valued logic gates using full current
implementation of multi-valued logic gates using full current

COS 116 The Computational Universe Laboratory 7: Digital Logic I
COS 116 The Computational Universe Laboratory 7: Digital Logic I

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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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