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Report - KFUPM Faculty List
Report - KFUPM Faculty List

... Information regarding special problems of dc grounding is contained in the 1957 report of the AIEE Substations Committee. 2. Effect of magnitude and duration The most common physiological effects of electric current on the body, stated in order of increasing current magnitude, are threshold percept ...
Technical Update - Ceramic versus Tantalum 2008-Nov
Technical Update - Ceramic versus Tantalum 2008-Nov

How to design a off-grid electrical system (for dummies)
How to design a off-grid electrical system (for dummies)

AC POWER
AC POWER

... where V and I are the peak amplitudes of the sinusoidal voltage and current, respectively, and θV and θI are their phase angles. Two such waveforms are plotted in Figure 7.2, with unit amplitude and with phase angles θV = π/6 and θI = π/3. The phase shift between source and load is therefore θ = θV ...
AD5737 数据手册DataSheet下载
AD5737 数据手册DataSheet下载

... 10 kΩ pull-up resistor to DVDD At 2.5 mA 10 kΩ pull-up resistor to DVDD ...
400 Watt Power Inverter
400 Watt Power Inverter

M48T37V
M48T37V

... A power failure during a WRITE cycle may corrupt data at the currently addressed location, but does not jeopardize the rest of the RAM's content. At voltages below VPFD (min), the user can be assured the memory will be in a write protected state, provided the VCC fall time is not less than tF. The M ...
74ALVT16823 1. General description 18-bit bus-interface D-type flip-flop with reset and enable;
74ALVT16823 1. General description 18-bit bus-interface D-type flip-flop with reset and enable;

... The 74ALVT16823 has two 9-bit wide buffered registers with clock enable (pin nCE) and master reset (pin nMR) which are ideal for parity bus interfacing in high microprogrammed systems. The registers are fully edge-triggered. The state of each D input, one set-up time before the LOW-to-HIGH clock tra ...
low-pass, high-pass, band-pass VARIABLE
low-pass, high-pass, band-pass VARIABLE

Half Bridge Gate Driver
Half Bridge Gate Driver

... - 3-Phase half-bridge gate drivers - Common-mode dv/dt noise canceling circuit - Allowable – Vs swing to – 9.8V @VBS = 15V - Built-in UVLO function for VBS and VDD - Shoot through prevention with dead-time - Sourcing/Sinking Current 350mA/650mA ...
Sigma-7 Series AC Servo Drive - Yaskawa
Sigma-7 Series AC Servo Drive - Yaskawa

... For example, the P-OT and N-OT signals are set in the default settings to operate on the safe side if a signal line breaks. Do not change the polarity of this type of signal. • When overtravel occurs, the power supply to the motor is turned OFF and the brake is released. If you use the Servomotor to ...
Classic Mac Repair Notes
Classic Mac Repair Notes

... always caused by insufficient voltage on the +5V supply line. What happens is this: If the voltage is, say, 4.6V, most of the circuitry might be ok when cold. As it heats up, maybe the voltage shifts, maybe the demand requirements change, but whatever the case, it resets. During reset, the load is m ...
as a PDF
as a PDF

... The low saturated inductance of this drive circuit ensures a rapid rise in current flow and the application of nearly all of the C1 voltage across the electrode set. Previously reported DPF systems made use of spark gaps or thyratrons with no magnetic pulse compression and thus suffered from much hi ...
DS2786B Stand-Alone OCV-Based Fuel Gauge General Description Features
DS2786B Stand-Alone OCV-Based Fuel Gauge General Description Features

... In the Active Mode of operation, the DS2786B continually measures the current flow into and out of the battery by measuring the voltage drop across a low-value current-sense resistor, RSNS, connected between the SNS and VSS pins. The voltage-sense range between SNS and VSS is ±51.2mV. Note that posi ...
Electric Circuits - Key
Electric Circuits - Key

... indicates a change in the direction of charge flow in the loop, but provides no information about which actual direction exists before or after the change. Scientists searched for hundred of years trying to determine which way the charge really moved, but were unable to do so until the late 1800’s. ...
MN132005EN/ Old S240-33-1
MN132005EN/ Old S240-33-1

... The information, recommendations, descriptions and safety notations in this document are based on Eaton Corporation’s (“Eaton”) experience and judgment and may not cover all contingencies. If further information is required, an Eaton sales office should be consulted. Sale of the product shown in thi ...
PPT - extended version
PPT - extended version

A Concurrent Dual-Band Low Noise Amplifier for GNSS Receivers
A Concurrent Dual-Band Low Noise Amplifier for GNSS Receivers

... inductively degenerated common source topology. The basic concept of the proposed circuit is relied on the differential amplifier with differential outputs and inputs as shown in Fig. 2. In order to eliminate the input balun, the mentioned structure can be modified to pseudo-differential. The most i ...
AD7933 数据手册DataSheet下载
AD7933 数据手册DataSheet下载

... The parts contain a low noise, wide bandwidth, differential trackand-hold amplifier that handles input frequencies up to 50 MHz. ...
HumidiClean™ Humidifiers Series HC
HumidiClean™ Humidifiers Series HC

... 1. The dispersion tube should be proper length. Verify correct size from Table 9-1. 2. Install dispersion tube(s) horizontally in duct so holes face upward. Air flow must be vertical up or horizontal. Do not restrict duct with a height of 200 mm (8”) or less. Installations over 10 m/s (1800 FPM) air ...
TEM Transmission Lines
TEM Transmission Lines

XA Artix-7 FPGAs Overview
XA Artix-7 FPGAs Overview

... Single-ended outputs use a conventional CMOS push/pull output structure driving High towards VCCO or Low towards ground, and can be put into a high-Z state. The system designer can specify the slew rate and the output strength. The input is always active but is usually ignored while the output is ac ...
Data Center Power and Cooling White Paper
Data Center Power and Cooling White Paper

Timing at ALBA, Jairo Moldes/Ramón Suñe
Timing at ALBA, Jairo Moldes/Ramón Suñe

... DBus: may transport a “signal” per bit or a byte of data ...
MAX7325 I C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os
MAX7325 I C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os

... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Expo ...
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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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