• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
PAM8301 Description Pin Assignments
PAM8301 Description Pin Assignments

... The PAM8301 is a high-performance CMOS audio amplifier that requires adequate power supply decoupling to ensure the output THD and PSRR as low as possible. Power supply decoupling affects low frequency response. Optimum decoupling is achieved by using two capacitors of different types that target di ...
ACTIVE CUBE
ACTIVE CUBE

... the case of a linear drive). Mains voltage is still present. The function STO can be used, for example, for safe stopping in the case of a dangerous situation or for maintenance work on the machine. If an error occurs, the machine can still be (or remain) switched off safely. Unlike shut-down via ma ...
Annex C: Bid Submission Forms
Annex C: Bid Submission Forms

... This section should fully explain the Bidder’s resources in terms of personnel and facilities necessary for the performance of this requirement. 1.1 Brief Description of Bidder as an Entity: Provide a brief description of the organization / firm submitting the Bid, its legal mandates/authorized busi ...
LM111, LM211, LM311 Differential Comparators
LM111, LM211, LM311 Differential Comparators

H7GP/H7HP Total Counter/Time Counter
H7GP/H7HP Total Counter/Time Counter

... ■ Terminal Arrangement Note: 1. Incremented for count 1 (CP1) inputs; decremented for count 2 (CP2) inputs. 2. Non-contact input is also available. ...
S-19190 Series VOLTAGE MONITORING IC
S-19190 Series VOLTAGE MONITORING IC

... Resistance should be as small as possible to avoid worsening the overcharge detection ...
MC79L00 - 100 mA Negative Voltage Regulators
MC79L00 - 100 mA Negative Voltage Regulators

... limits the maximum current the circuit will pass. In many low current applications, compensation capacitors are not required. However, it is recommended that the regulator input be bypassed with a capacitor if the regulator is connected to the power supply filter with long wire length, or if the out ...
GE 12A Digital PicoDLynx : Non-Isolated DC-DC Power Modules Data Sheet
GE 12A Digital PicoDLynx : Non-Isolated DC-DC Power Modules Data Sheet

... modules operate over a wide range of input voltage (VIN = 3Vdc-14.4Vdc) and provide a precisely regulated output voltage from 0.45Vdc to 5.5Vdc, programmable via an external resistor and PMBus control. Features include a digital interface using the PMBus protocol, remote On/Off, adjustable output vo ...
Neptune Servo Drive Product Manual v.6
Neptune Servo Drive Product Manual v.6

... The Neptune Servo Drive components temperature may exceed 100 ºC during operation. Some components become electrically charged during and after operation. The power supply connected to this controller should comply with the parameters specified in this document. When connecting the Neptune Servo Dri ...
REGISTER MY`HW if (l2 desire“?
REGISTER MY`HW if (l2 desire“?

system> eg SENTRON
system> eg SENTRON

Evaluation Board User Guide UG-016
Evaluation Board User Guide UG-016

... low phase noise, such as Rohde and Schwarz SMA or HP8644B signal generators or the equivalent. Use a 1 meter shielded, RG-58, 50 Ω coaxial cable for making connections to the evaluation board. Enter the desired frequency and amplitude (refer to the specifications in the AD9276 or AD9277 data sheet). ...
20-1050CUL OMA96283 Rev A
20-1050CUL OMA96283 Rev A

... Connect the black, negative DC input cable from the quick connector to the battery negative (-) terminal. This battery negative terminal is usually where the battery negative connects to the engine block or frame. Connect the red, positive DC input cable from the quick connector to the in/line fuse ...
Choosing servomotor brakes
Choosing servomotor brakes

... the load in the absence of power. Typically, the brake is springapplied, power-off type, with a static torque 50% higher than required to hold the load. On occasion, such brakes are used for dynamic braking, either as an assist to the motor, usually taking over just prior to stopping, or in emergenc ...
GE 80A GigaDLynx : Non-Isolated DC-DC Power Modules Preliminary Data Sheet
GE 80A GigaDLynx : Non-Isolated DC-DC Power Modules Preliminary Data Sheet

... The 80A Digital GigaDLynxTM power modules are non-isolated dc-dc converters that deliver up to 80A of output current. These modules operate over a wide range of input voltage (VIN =4.5Vdc - 14Vdc) and provide a precisely regulated output voltage from 0.6Vdc to 2Vdc, programmable via an external resi ...
BD95835EFJ
BD95835EFJ

D5V0F4U10LP Features Mechanical Data
D5V0F4U10LP Features Mechanical Data

... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
Highest accuracy & precision WT3000E Precision Power Analyzer
Highest accuracy & precision WT3000E Precision Power Analyzer

the Millennium User Manual
the Millennium User Manual

... The manual and the conformity certificate are an integral part of the equipment and should always accompany the product in the event of a transfer to a new location or to a new owner. The user is responsible for the integrity of these documents, for their consultation and during the whole life cycle ...
UNIVERSITY OF CALIFORNIA, SAN DIEGO CMOS Power Amplifiers for Wireless Communications
UNIVERSITY OF CALIFORNIA, SAN DIEGO CMOS Power Amplifiers for Wireless Communications

... SPECTRE simulated and MATLAB fitted PMOS source-drain current versus gate voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Schematic of the designed two-stage CMOS power amplifier. . . . . . . . . . . . 115 Approximate time-domain wavefor ...
Lab 1: The Digital Multimeter
Lab 1: The Digital Multimeter

... the known quantities I , Vs and R, we can solve for the unknown quantity Rm . In the procedure that follows it is extremely important that you take precise and accurate measurements. Record each measurement as precisely as the instrument will allow. 1. Select a (nominal) 100Ä resistor. Record all co ...
in sink erator
in sink erator

Burst Mode Switch Mode Power Supply (SMPS) for 320W (peak) Class D
Burst Mode Switch Mode Power Supply (SMPS) for 320W (peak) Class D

... exists, then the SMPS may go unstable when with the customer. A total and thorough mathematical analysis of the feedback loop is fairly extensive. Also, every time a component of the loop changes, then it needs re-working. Some of the components have dreadfully poor tolerances, such as the optocoupl ...
Simulation and Design of a high speed Solid State Switch
Simulation and Design of a high speed Solid State Switch

... Fachbereich Elektrotechnik/Informatik der Universität Kassel ...
AN3430 Application note How to achieve the lowest current consumption with STM32F2xx
AN3430 Application note How to achieve the lowest current consumption with STM32F2xx

< 1 ... 100 101 102 103 104 105 106 107 108 ... 1202 >

Pulse-width modulation



Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report