'Pwm' diaporamas de présentation

? 3 ? DC/DC ????

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Digitally Controlled Power Supplies Introduction and design considerations

Digitally Controlled Power Supplies Introduction and design considerations. David Figoli Shamim Choudhury Digital Power Systems Texas Instruments Houston. Agenda. Technology Overview Hardware Software Control Theory. Scope of Digital Power Control. Telecom infrastructure

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SENDER A.M. Transmitters

SENDER. SENDER S.A. SENDER A.M. Transmitters. SENDER. SENDER S.A. Company was created in 1997 by a group of engineers and technitians with long experience in Solid state A.M. Transmitters. Located in Santiago Chile, with 25 employes. 40% of them are shareholders.

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??? PWM ????

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Pulse Width Modulation

Pulse Width Modulation. By: Val Tocitu Jason Kulpe Alexandre Mariuzza. ME 4447/6405 October 29 th , 2009. Presenter: Val Tocitu. Introduction and definitions Types of PWM Methods of generation Characteristics of PWM Applications and examples Implementation on the HCS12.

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EEE447 Introduction to Microprocessors

EEE447 Introduction to Microprocessors. Week x. Interfacing Concepts. How the microcontroller communicates with the world ? The procedures of data exchange ? User interfaces : Keypad , LCD, 7-segment display , switches , etc .

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SENIOR DESIGN

SENIOR DESIGN. 10/16. Pulse Width Modulation (PWM). PWM is a way of digitally encoding analog signal levels.

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Modeling and Analysis of PSRR in Analog PWM Class D Amplifiers

Tong Ge; Chang, J.S.; Wei Shu; Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on 0-0 0 Page(s):4 pp. Digital Object Identifier 10.1109/ISCAS.2006.1692853 ???????? ? ????? ? ?? 98662006.

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Class-D Audio Amplifier

Class-D Audio Amplifier. System Description. Analog to PCM Conversion PCM to PWM Conversion. TMS 320F2808. Output Stage (Amplifier). Input Stage. Audio Source. Protection Circuit Buffer DC shift. Switching Amplifier H-Bridge LPF. The System. 12V Power Supply. Audio Source. 5V

990 views • 24 slides

HCS12 Technical Training Module

HCS12 Technical Training Module. PWM. 0 %. 10 %. 50 %. 90 %. Applications:. Digital-Analog Conversion Electrical Motor Control Tone Generation Sine Waveform Generation. 99 %. What is PWM?. T on. T off. Average. T period. 8-bit Counter. Clock. PWMCNTx.

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DC motor and PWM

DC motor and PWM. Topics. DC motor Unidirectional control Bidirectional control PWM modes Wave generating using Fast PWM Wave generating using Phase correct PWM. DC motor. Current continues to flow after switch is opened.

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ARM???????????? ?10? ???

ARM???????????? ?10? ???. ???? ?. ?1? ????????? ?2? ARM???? ?3? ARM????? ?4? ARM???????? ?5? ARM Realview MDK?????? ?6? GPIO?? ?7? ARM????????? ?8? ??????. ???? ?. ?9? ????? ?10? ??? ?11? A/D??? ?12? LCD???? ?13? ?????????. ?????. 10.1 S3C2410X PWM??? 10.2 S3C2410X??????

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Laboratory 2

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Microprocessoren lesson 6. PWM /motor control/servo

Microprocessoren lesson 6. PWM /motor control/servo. Example applications PWM. PWM. Power control: Motor control Light Dimmer Servo control. PWM 2. PWM 3. PWM 4 Equations. Summary registers pwm.

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Emblinux

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Pulse Width Modulator (PWM)

Pulse Width Modulator (PWM). PWMConfigure.c Establish PWMConfigure.c files, and join it into the project. PWMConfigure.c file is responsible for the initialization of PWM.It enables the PWM generator and output pins, and set the PWM output cycle and duty cycle.

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Software

Software. Three Main Functions Records/Monitors Zero Detection Points Gives our PWM a starting point Data used to dynamically adjust carrier frequency Detects possible faults situations and shuts off PWM accordingly Creates Sine-Triangle PWM Triangle wave carrier frequency (~ 6 kHz)

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PWM Mode

PWM Mode. PWM Mode. In Pulse Width Modulation mode, the CCPx pin produces up to a 10-bit resolution PWM output. Since the CCP1 pin is multiplexed with the PORTC data latch, the TRISC<2> bit must be cleared to make the CCP1 pin an output

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PEWC FA EC GROUP 2008 ? 01 ? 21 ?

Knowhow. FPX ? PWM ?? ??. PEWC FA EC GROUP 2008 ? 01 ? 21 ?. ?? PWM ?????????????. FP-X C30T. PWM ??. +24V. 0V. ?? VFO ????? P01=0.1 ?????????????? P02=0.1 ?????????????? P22=01 PWM ?????? P23=01 PWM ?????? P24=10 PWM ???? ms. SW2. +. 3. 8. 9. -. Y0. FP-X C30T ???.

162 views • 3 slides