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CONTENTS - Hodder Education
CONTENTS - Hodder Education

... Figure 12.22a) we would get the same effect as moving the magnet to the right by moving the coil to the left. The important idea is that there must be relative movement between the magnet and the coil. When a current is produced by electromagnetic induction, energy is always needed to create the ele ...
VersaMax 5/12VDC Input Modules IC200MDL643/644-E, GFK-2545
VersaMax 5/12VDC Input Modules IC200MDL643/644-E, GFK-2545

... Individual green LEDs indicate the on/off state of each input point. The green OK LED is on when backplane power is present to the module. ...
CAT5171 - 256‐position I2C Compatible Digital Potentiometer (POT)
CAT5171 - 256‐position I2C Compatible Digital Potentiometer (POT)

... ideally suited for replacing mechanical potentiometers and variable resistors. The wiper settings are controlled through an I2C-compatible digital interface. Upon power-up, the wiper assumes a midscale position and may be repositioned anytime after the power is stable. The device can be programmed t ...
Naim Digital to Analogue Converter
Naim Digital to Analogue Converter

... words, insert the required extra samples but give them all a value of zero. When we do the result is a waveform and spectrum like that shown below. Note that the spectrum is very similar to that shown previously but all the out-ofband peaks are now of the same height as the in-band peak (0dB). If we ...
PTC305C Series PTC Thermistors Motor Start Packages
PTC305C Series PTC Thermistors Motor Start Packages

... It is important to provide time between motor starts to allow the PTC to cool to near its initial temperature. This time is usually 3 min to 5 min and is determined by the thermostat (THERM) or separate time-delay relay (TR). Attempts to restart in less time may be successful depending on compressor ...
Plant Overview--Motors
Plant Overview--Motors

LT56 Series Dimming Guide
LT56 Series Dimming Guide

... Application Note - H277, H347 and H347200 step-down transformers are qualified to drive multiple Halo LED on a single circuit in Non-IC construction. Installation of these transformers with individual LED fixtures on circuits with multiple LED loads is not recommended. This is not recommended due t ...
User Manual - Astronics Test Systems
User Manual - Astronics Test Systems

... The Reference microphone senses the sound pressure level in the test manifold at the output of the transducer. The output of the reference microphone is amplified and then rectified by the true RMS AC to DC converter and compared to a reference voltage. Any error from the comparison causes the compr ...
DAC8580 数据资料 dataSheet 下载
DAC8580 数据资料 dataSheet 下载

... The DAC8580 is a 16-bit, high-speed, low-noise, voltage-output DAC designed for waveform generation applications. It operates from dual ±5-V power supplies and requires only a single external reference. The DAC8580 is capable of generating output signal frequencies up to 1 MHz. The DAC8580 significa ...
Introduction to Three
Introduction to Three

ADP/COMPUTER  ELECTRICAL INSTALLATION  AND  INSPECTION FOR COMMAND, CONTROL,
ADP/COMPUTER ELECTRICAL INSTALLATION AND INSPECTION FOR COMMAND, CONTROL,

VEGABAR 81, 82 and 83
VEGABAR 81, 82 and 83

... Please note the Ex specific safety information that you can find at www.vega.com and that comes with each instrument. In hazardous areas you should take note of the appropriate regulations, conformity and type approval certificates of the sensors and power supply units. The sensors must only be oper ...
L LA8 A8
L LA8 A8

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motors in parallel

HAIPRODUCTTECHNICALSH EET How HAI
HAIPRODUCTTECHNICALSH EET How HAI

... Expand an Omni-Bus network with this splitter. Used where a T-junction or network split is required. Omni-Bus component designed for HAI’s international markets using 220-240V~, 50Hz. Add two additional Cat-5 connections to the network. Small and convenient size. Quick and easy expansion option. ...
INTRINSIC SAFETY
INTRINSIC SAFETY

... Faulty motor windings, for example, can create such a high temperature very quickly. Any piece of equipment used inside this particular hazardous area must not be capable of generating a temperature greater than 135°C. Only equipment rated at T4, T5, or T6 would be allowed in this hazardous area. ...
yashio factory okachan tenka harness
yashio factory okachan tenka harness

... to high heat in the area of the coil packs, as well as moisture trapment in the connectors. This heat damages the coil pack connectors, renders the wire harness brittle and susceptible to breakage of the wire insulation with erratic shunts to ground. Compounding the heat issue is the problem of mois ...
Specification for Ring Main Unit Switchgear with circuit breakers
Specification for Ring Main Unit Switchgear with circuit breakers

... They shall be maintenance-free with breaking in low pressure SF6 gas. The position of the power and earthing contacts shall be clearly visible on the front of the switchboard. The position indicator shall provide positive contact indication in accordance with IEC 62271-103 standard. In addition, man ...
Harmonic Filter Bank Tuning - Northeast Power Systems, Inc.
Harmonic Filter Bank Tuning - Northeast Power Systems, Inc.

... then a de-tuned filter bank is the best choice. This filter will do little for removing any harmonic distortion present on the system but will allow the installation of a large capacitor bank without any adverse system interactions. De-tuned filter banks are less costly an are more reliable than par ...
ADC-Series - Documents
ADC-Series - Documents

... precise positions to which the actuator will drive. For “2 Wire” or “3 Wire” On/Off operation, travel limits are set at the full clockwise (CW) and full counter-clockwise (CCW) ends of travel. To simplify the process of setting the precise travel limit positions, the ADC-Series provides two On/Off t ...
Advantages of Solid-State Relays Over Electro
Advantages of Solid-State Relays Over Electro

... the positive and negative sides of the contact do not alternate as in the case of an AC load. This results in material transfer in only one direction leading to a peak on one contact corresponding to a valley on the other. This can lead to changes in on-resistance, early failure, or contact sticking ...
G6-Circuit-Components
G6-Circuit-Components

ADuM1200 数据手册DataSheet下载
ADuM1200 数据手册DataSheet下载

... and temperature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth ...
Bus Compatible Digital PWM Controller, IXDP 610
Bus Compatible Digital PWM Controller, IXDP 610

64-Position OTP Digital Potentiometer AD5171  FEATURES
64-Position OTP Digital Potentiometer AD5171 FEATURES

... permanent programming, Analog Devices, Inc., patterned the OTP validation such that the fuse status can be discerned from two validation bits in read mode. For applications that program the AD5171 in factories, Analog Devices offers device programming software that operates across Windows® 95 to XP ...
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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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