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interactive
interactive

FDC10 10 Series of Power Moudules : DC/DC Converter
FDC10 10 Series of Power Moudules : DC/DC Converter

... TOS xx-xxSM (SMD package) and TOS xx-xxSIL (SIP package) are non-isolated DC/DC Point-of-Load converters that can deliver up to 6A (TOS 06-xxyyy), 10A (TOS 10-xxyyy) or 16A (TOS 16-xxyyy) of output current with an efficiency of up to 94% at 3.3V output voltage. These modules provide precisely regula ...
4. Chapter Summary
4. Chapter Summary

... Our receiver design is still incomplete. The signal received by the antenna can be as low as a few tens of microvolts whereas the speaker may require swings of several tens or hundreds of millivolts. That is, the receiver must provide a great deal of amplification (“gain”) between the antenna and th ...
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100327DRFSinLCWS.Beijin10

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VAMP 321 Arc-fault Detection System for

... Connecting the VAMP 321 I/O units ................................................... 72 Connecting the secondary circuits of the current transformers (VAM 4C / VAM 4CD only) ........................................................ 72 Connecting the trip circuits of the circuit breakers ............ ...
Dual-Core Intel® Xeon® Processor 5200 Series
Dual-Core Intel® Xeon® Processor 5200 Series

... The Dual-Core Intel® Xeon® Processor 5200 Series may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. 64-bit computing on Intel architecture requires a computer system with a ...
AVR STK500 User Guide
AVR STK500 User Guide

... LEDn ...
Theory and Applications of Piezo Actuators and PZT
Theory and Applications of Piezo Actuators and PZT

... value. Actuators using this effect first became available around 20 years ago and have changed the world of precision positioning. Piezoelectric actuators (PZTs) offer the user several benefits and advantages over other motion techniques: Repeatable nanometer and sub-nanometer sized steps at high fr ...
single photon counting for ultra-weak fluorescence
single photon counting for ultra-weak fluorescence

... photon counting properties of SiPM and demonstrates, for the first time, their use for detecting very weak fluorescence signals. SiPMs have high level of noise such as cross-talk and after-pulsing. This thesis investigates the noise of SiPM when used as a photon counter. Furthermore, this work demon ...
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gesis ELECTRONIC - Wieland Electric Inc.

... Brand: Wieland Electric GmbH Type: gesis KNX FLEX-BAS SP Z ...
appendix b - Epublications
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INSTRUCTION MANUAL DISTANCE RELAY GRZ100

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INSTRUCTION MANUAL DISTANCE RELAY GRZ100

... it must be ensured that only the minimum section of the power system must be isolated in order to clear the fault. Figure 2.1.2.1 shows typical different protection zones on the power system. In order to provide complete coverage by the protection, the neighboring protection zones are set to overlap ...
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Fix Anything Electronic

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Advanced Diagnostics Manual

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STHVDAC-303

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YASKAWA AC Drive-V1000 Compact Vector Control Drive Quick

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Part I Footprint Compatibility for the MPC7447A and Earlier Devices

... MPC7445, MPC7447, and MPC7447A; that is, it is intended to help design a single board compatible with all of these devices. Although this document contains relevant information, it is not intended to be a complete migration guide. Additionally, recommendations for various signals to ensure forward c ...
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MAX6400–MAX6405 µP Supervisory Circuits in 4-Bump (2 2) Chip-Scale Package

... the reset active timeout period (tRP) after MR returns high. This input has an internal 50kΩ pullup resistor, so it can be left open if it is not used. MR can be driven with TTL or CMOS logic levels, or with open-drain/collector outputs. Connect a normally open momentary switch from MR to GND to cre ...
GENERATORS AND MOTORS
GENERATORS AND MOTORS

... the act that more and more of the generated voltage is required to force the increasing current through the windings of the armature; i.e., the armature IR drop increases. This leaves a smaller part of the total emf for brush emf, and when the brush voltage falls, there is a slight decrease in the f ...
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MAX6467/MAX6468 Microprocessor Supervisory Reset Circuits with Edge-Triggered, One-Shot Manual Reset General Description

... enters the reset mode for a fixed timeout period only, even in the event of a continuously asserted manual reset. The MAX6467/MAX6468 significantly improve system reliability compared to traditional manual reset supervisory circuits. A variety of factory-trimmed threshold options accommodate differe ...
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AN4881, MPC57xx SAR ADC Implementation and Use
AN4881, MPC57xx SAR ADC Implementation and Use

super trouper ii
super trouper ii

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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.
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