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LM555 Timer
LM555 Timer

... Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified. Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performa ...
74F413 64 x 4 First-In First-Out Buffer Memory with Parallel I/O
74F413 64 x 4 First-In First-Out Buffer Memory with Parallel I/O

... inputs. To enter data the Input Ready (IR) should be HIGH, indicating that the first location is ready to accept data. Data then present at the four data inputs is entered into the first location when the Shift In (SI) is brought HIGH. An SI HIGH signal causes the IR to go LOW. Data remains at the f ...
Test_plan_hierarchy
Test_plan_hierarchy

Owners Manual PDF
Owners Manual PDF

... right to change or improve the design of the product at any time without prior notice. This warranty does not cover claims for damage due to abuse, neglect, alteration or attempted repair by unauthorized personnel, and is limited to failures arising during normal use that are due to defects in mater ...


Electronic Engineering
Electronic Engineering

... work only if the circuit components are linear i.e. if you double the voltage, you double the current. Components such as resistors, capacitors and inductors are, on the whole linear in nature. When we come to analysing circuits with non-linear components such as diodes, bipolar transistors and fiel ...
BUL38D
BUL38D

... Figure 10. Inductive load storage time ...
KST2222A KST2222A  NPN Epit axial Silicon T ransistor
KST2222A KST2222A NPN Epit axial Silicon T ransistor

... or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
Angle Modulation Part 2
Angle Modulation Part 2

... Angle modulation is resistant to propagation-induced selective fading since amplitude variations are unimportant and are removed at the receiver using a limiting circuit. Angle modulation is very effective in rejecting interference. (minimizes the effect of noise). Angle modulation allows the use of ...
power/temp management
power/temp management

Electrical power and energy Electrical power P = t = VI = IzR = R The
Electrical power and energy Electrical power P = t = VI = IzR = R The

uniblock ubsf
uniblock ubsf

RF2173 0
RF2173 0

... conditions, with the RF drive at full power during transmit, and the output VSWR extremely high, a low load impedance at the collector of the output transistors can cause currents much higher than normal. Due to the bipolar nature of the devices, there is no limitation on the amount of current de de ...
Features:
Features:

... All 8 pins of Port C may be used to run the LCD connector. When using the LCD, do NOT attempt to use Port C for any other function. The LCD connector provides all the necessary inputs and supply voltages for standard character LCDs. The contrast is changed using the potentiometer. The connector also ...
ATLAS-CMS Electronics Workshop
ATLAS-CMS Electronics Workshop

... - Currently central part of ATLAS beampipe is Beryllium (Be), rest is Stainless Steel (SS) - SS gives large backgrounds, especially to muon system - SS gets activated - Change to Al for ~2009 - Change to all Be for SLHC - Be is expensive compared to SS, but cheap compared to muon chambers! It gives ...
CZ36611614
CZ36611614

D047031619
D047031619

... shown in the figure 1; come under the over sampling converters. The comparator compares the input signal against its last sample, to see if this new sample is larger than the last one. If it is larger, then the output is increasing and if it is smaller, then the output is decreasing. As the Greek le ...
Solution - Bison Academy
Solution - Bison Academy

Question Bank - Saraswathi Velu College of Engineering
Question Bank - Saraswathi Velu College of Engineering

... 23. Define slew rate. 24. Why IC 741 is not used for high frequency applications? 25. What causes slew rate? PART-B 1. Explain in detail the fabrication of ICs using silicon planar technology 2. Design an active load for an emitter-coupled pair (differential amplifier) and perform a detailed analysi ...
DS90LV001 800 Mbps LVDS Buffer (Rev. E)
DS90LV001 800 Mbps LVDS Buffer (Rev. E)

... Circuit board layout and stack-up for the DS90LV001 should be designed to provide noise-free power to the device. Good layout practice also will separate high frequency or high level inputs and outputs to minimize unwanted stray noise pickup, feedback and interference. Power system performance may b ...
Take a lot of care when connecting the circuit, to the place of the
Take a lot of care when connecting the circuit, to the place of the

... pure sine waves. Currents are rarely perfectly sinusoidal because of the usually poor linearity of inductive materials. The optimal value of the capacitors may be slightly different of the displayed values. ...
DATASHEET SEARCH SITE | WWW.DATASHEETMAX.COM
DATASHEET SEARCH SITE | WWW.DATASHEETMAX.COM

... The ADMTV201 consumes ultralow power in comparison to conventional tuners. It is appropriate for portable applications that require low power consumption and includes an industrystandard I2C® serial bus interface. The primary application of the ADMTV201 is the portable terrestrial TV receiver, such ...
LM224A, LM324A datasheet
LM224A, LM324A datasheet

... of the input PNP transistor becoming forward biased and thereby acting as an input diode clamp. In addition to this diode action, there is also an NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the op amps to go to the VCC voltage level (or to ground for ...
Implementing Temperature-Based Variable Fan Speed Control in
Implementing Temperature-Based Variable Fan Speed Control in

... Linear Voltage Control: This method varies the DC voltage at the VDD terminal of the fan in a linear manner. For example, a +12V nominal fan modulated linearly to +8V would theoretically run at 66.7% RPM. Though this seems relatively simple, there are drawbacks. All BDC fans have a “stall voltage” t ...
MJD31C
MJD31C

... Doc ID 3543 Rev 4 ...
< 1 ... 2002 2003 2004 2005 2006 2007 2008 2009 2010 ... 2646 >

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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