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Profile Documents Logout
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IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)

... research to develop more powerful devices, not only to have lower switching losses, higher efficiency but also improve reliability. For this reason, power losses in the device must be put into consideration. The main contribution in this work is to verify that SiC high power diode having larger ener ...
LT1970A - 500mA Power Op Amp with Adjustable Precision Current Limit
LT1970A - 500mA Power Op Amp with Adjustable Precision Current Limit

... normally not used and should be left open or shorted to the SENSE– pin. The FILTER pin can be used to adapt the response time of the current sense amplifiers with a 1nF to 100nF capacitor connected to the SENSE – input. An internal 1k resistor sets the filter time constant. SENSE– (Pin 6): Negative ...
Thermal detectors - Hamamatsu Photonics
Thermal detectors - Hamamatsu Photonics

... Thermal detectors have an absorption layer that absorbs and converts light into heat, and provide an electric signal output that represents the change in absorption layer temperature. Because thermal detectors have no wavelength dependence, they can serve as infrared detectors when used with a windo ...
LAMPIRAN A FOTO ALAT
LAMPIRAN A FOTO ALAT

... materials, such as ferrites and powdered iron. The least expensive, the bobbin core type, consists of wire wrapped on a ferrite rod core. This type of construction makes for an inexpensive inductor, but since the magnetic flux is not completely contained within the core, it generates more electromag ...
RF3398 数据资料DataSheet下载
RF3398 数据资料DataSheet下载

... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
Motors and Generators - Instructor Guide
Motors and Generators - Instructor Guide

Final documentation - Department of Electrical Engineering and
Final documentation - Department of Electrical Engineering and

... fair questions, but as well see in this project, vacuum tubes fulfill a very small niche need that cannot be satisfied by anything that chops the sound into little pieces no matter how fine. In fact, the answer to both questions is rather surprising: Lots of people. They just represent a very small ...
DRV11873 12-V, 3-Phase Sensorless BLDC Motor Controller (Rev. A)
DRV11873 12-V, 3-Phase Sensorless BLDC Motor Controller (Rev. A)

... frequency range can vary from 7 to 100 kHz. The motor driver MOSFETs operate at a constant switching frequency of 125 kHz when the FS pin is pulled high and 62.5 kHz when the FS pin is pulled low. With this high switching frequency, DRV11873 can eliminate audible noise and reduce the ripple of VCC i ...
Microwave Radio Telescope Projects
Microwave Radio Telescope Projects

Superior Pulse Resistor Capability
Superior Pulse Resistor Capability

... The continuous power rating for the 2512 is 2 watts. Critical resistance value, in ohms = (operating voltage)2 / power (watts) Substituting: 800M = (40000)2 / 2 ...
NCP803 Very Low Supply Current 3−Pin Microprocessor Reset
NCP803 Very Low Supply Current 3−Pin Microprocessor Reset

Report Gel Electrophoresis - Universiti Teknologi Malaysia
Report Gel Electrophoresis - Universiti Teknologi Malaysia

... Gel electrophoresis is a technique used for the separation of deoxyribonucleic acid (DNA), ribonucleic acid (RNA), or protein molecules using an electric current applied to a gel matrix. DNA Gel electrophoresis is generally only used after amplification of DNA via Polymerase Chain Reaction (PCR). It ...
AD8324 - Analog Devices
AD8324 - Analog Devices

... to 30 μA. A Logic 0 powers down the device (high ZOUT state), and a Logic 1 powers up the device. No Internal Connection. Do not connect to this pin. Internal Bypass. This pin must be externally decoupled (0.1 μF capacitor). Negative Output Signal. Must be biased to VCC. See Figure 23. Positive Outp ...
Two - Schneider Electric
Two - Schneider Electric

... devices "wait" for 80 ms and 200 ms respectively. Therefore, neither of the two devices trips. bb if the fault occurs downstream of the type S residual current device, the latter will interrupt the current in less than 175 ms, whereas the type R device "wait" for 200 ms and therefore does not trip. ...
Transistor Basics - Lakeland Regional High School
Transistor Basics - Lakeland Regional High School

... • Even though we git a big signal out we do not get something for nothing • Bipolar transistors also require connection to a DC source- this is where the energy comes from • This does not make them any less useful ...
MAX1758 Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 28V Switch General Description
MAX1758 Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 28V Switch General Description

... charger that charges one-to-four cells. It provides a regulated charging current accurate to ±10% and a regulated voltage with only a ±0.8% total voltage error at the battery terminals. The internal high-side switch delivers a programmable current of up to 1.5A to charge the battery. The built-in sa ...
1.2 Ideal Op-Amp
1.2 Ideal Op-Amp

... Ideally, output of an op-amp is 0 Volt if the input is 0 Volt. Realistically, a small dc voltage will appear at the output when no input voltage is applied. Thus, differential dc voltage is required between the inputs to force the output to zero volts. This is called the Input Offset Voltage, Vos. R ...
TD-L1630 - skipper
TD-L1630 - skipper

... ● Please be careful not to give any mechanical shock to LCD display. ● Handle it carefully not to break its glass. When the glass is broken, do not touch the liquid in it. Particularly keep it away from mouth or eye. When you touch the liquid, wash it out with running water. If you put it into your ...
DTL Inverter Introduction One of the problems with RTL circuits is
DTL Inverter Introduction One of the problems with RTL circuits is

... as a logic 0. This also makes the open RTL input susceptible to certain kinds of noise signals, so that an open RTL input can introduce spurious signals under some conditions. With DTL, the pull-up resistor causes the open input line to act as a logic 1. In addition, any noise signal will have to pu ...
13cm PSK transceiver for 1.2Mbit/s packet radio
13cm PSK transceiver for 1.2Mbit/s packet radio

... L14. This is done easily if the PLL is already operating. L14 usually needs to be made slightly longer to obtain a 2.5V PLL control voltage in the locked condition. Then L7 is adjusted for the maximum mixer conversion gain and finally L4 and L5 may need some small adjustments. L1 and L2 should be ad ...
UC2524 数据资料 dataSheet 下载
UC2524 数据资料 dataSheet 下载

... timing resistor (RT), and one timing capacitor (CT), RT establishes a constant charging current for CT. This results in a linear voltage ramp at CT, which is fed to the comparator providing linear control of the output pulse width by the error amplifier. The UC1524 contains an on-board 5 V regulator ...
BD6385EFV-LB
BD6385EFV-LB

... Connecting of the power supply in reverse polarity can damage IC. Take precautions when connecting the power supply lines. An external direction diode can be added. (3) Power supply Lines Design PCB layout pattern to provide low impedance GND and supply lines. To obtain a low noise ground and supply ...
Operation Manual
Operation Manual

MAX16929 Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators
MAX16929 Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators

... Note 2: Specifications over temperature are guaranteed by design and not production tested. Note 3: Operation in light-load conditions or at extreme duty cycles result in skipped cycles, resulting in lower operating frequency and possibly limited output accuracy and load response. Note 4: 50% of ...
EN Reverse Polarity Signaling Module
EN Reverse Polarity Signaling Module

... information from the control panel to a monitoring station. This module operates with either a 12 VDC or 24 VDC supply. All circuits are power limited. The three D185 input terminals accept alarm, trouble, or supervisory input from the control panel. It responds to the input by communicating these c ...
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Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
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