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DC/DC Converters
DC/DC Converters

Resistors
Resistors

... manufactured with this property in mind are called RESISTORS. These electronic devices are commonly used to reduce the power or current in an electronic device and to develop a working voltage by dividing up the Source Voltage (Vt). Perhaps the most common to mobile electronics installers is that of ...
DR230 Hybrid Recorder
DR230 Hybrid Recorder

... ms. Compact input modules measure input variables, such as temperature, flow rate, strain, etc. and can simultaneously record and transfer the measured data to a personal computer or store it in a memory device (floppy disk). The DR230 is available in two versions, a stand-alone model which has an i ...
Technology of Estimating Short Circuit Current and Ground Fault for
Technology of Estimating Short Circuit Current and Ground Fault for

DC Motor Drives2
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... resistance of the field itself is 200 ohm and rated field current is 2 A. Ra = 0.2 ohm. Calculate the full-load (rated) current IaR and in subsequent calculations, maintain this value. Determine the loss torque. The speed is to be increased up to 1000 rev/min by field weakening. Calculate the Extra ...
UCC2808A-1 数据资料 dataSheet 下载
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... A 200-kHz push-pull application circuit with a full-wave rectifier is shown in Figure 2. The output, VO, provides 5 V at 50 W maximum and is electrically isolated from the input. Since the UCC3808A is a peak-current-mode controller the 2N2907 emitter following amplifier (buffers the CT waveform) pro ...
Proposed Test Procedure for VDSL/VDSL2 Signal Power
Proposed Test Procedure for VDSL/VDSL2 Signal Power

... signals tend to couple more readily than differential mode signals in multi-line, twisted pair cable plant. In other words, LOV limits are necessary to limit crosstalk. LOV limits have been crafted to allow higher levels around the equipment’s operating band. This is necessary as a common mode image ...
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HIGH-LEVEL MULTI-STEP INVERTER OPTIMIZATION, USING A

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SDDS-NCL Design: Analysis of Supply Voltage Scaling
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Gate array.indd - Renesas Electronics Europe

... Gate Array solutions Gate Array ASICs are a well-established technology for implementing customer specific logic functions in a simple, fast and in particular a very cost-effective manner. They can be used for many purposes in all kind of applications. In Gate Array ASICs the customer specific functi ...
BDTIC I Implementing Complex Motor Control Algorithms
BDTIC I Implementing Complex Motor Control Algorithms

... As Mr. Tesla discovered, if you apply three-phase sinusoidal currents to this type of stator, a rotating sinusoidally distributed flux is created. We can prove this mathematically. The flux generated by a winding is proportional to the current through the winding and the number of coils in the windi ...
ZG310 u en 500729 - Avery Weigh
ZG310 u en 500729 - Avery Weigh

... No part of this publication may be reproduced by making a facsimile copy, by the making of a copy in three dimensions of a two-dimensional work and the making of a copy in two dimensions of a three-dimensional work, stored in any medium by electronic means, or transmitted in any form or by any means ...
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MAX7327 I C Port Expander with 12 Push-Pull Outputs and 4 Open-Drain I/Os

... The four open-drain ports offer latching transition detection functionality when used as inputs. All input ports are continuously monitored for changes. An input change sets 1 of 4 flag bits that identify the changed input(s). All flags are cleared upon a subsequent read or write transaction to the ...
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MAX2037 - Part Number Search
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... In addition to rigorous layout design, the PA optimization is based on the load line approach considering general and loop stability, gain, bandwidth, and output power. The input, inter-stage and output matching networks have the task of transforming 50 Ω impedances from the RF ports to the very low ...
4 Series and Parallel Resistors
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... calculate Rtot for the entire circuit board. When you are finished with that calculation, turn off the power supply and disconnect it from the circuit board. Turn the dial on the voltmeter so that it is in the “ range”. This will turn the voltmeter into an ohmmeter. Use it to measure the total resi ...
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... An external clock that matches the specification of the corresponding IC data sheet can be used by cutting the trace of jumper JU2. Drive the CLK pin with a CMOS gate powered from 0 to VDD. Apply the clock signal to the CLK pad. ...
an266 vcxo tuning slope (kv), stability, and absolute
an266 vcxo tuning slope (kv), stability, and absolute

... 3.1%. Note, however, that linearity is not necessarily a good indicator of how well the actual gain at a specific operating point (sometimes referred to as the “incremental gain”) matches the specified Kv typical value. Traditional VCXO devices use a varactor diode to vary the capacitive loading on ...
ADM1064 数据手册DataSheet 下载
ADM1064 数据手册DataSheet 下载

... 10 supplies 10 supply fault detectors enable supervision of supplies to <0.5% accuracy at all voltages at 25°C <1.0% accuracy across all voltages and temperatures 5 selectable input attenuators allow supervision of supplies to 14.4 V on VH 6 V on VP1 to VP4 (VPx) 5 dual-function inputs, VX1 to VX5 ( ...
EFS600 Fuel Management System Installation and Operation
EFS600 Fuel Management System Installation and Operation

... fuel lock-off, regulator/converter etc.) the EFS600 controls the air/fuel ratio using two digital control motors. Based upon the input from several engine sensors and the oxygen sensor the EFS600 fuel controller uses the digitally controlled stepper motors to increase or decrease the fuel supply to ...
Choosing Components: Part 1 - Component Engineering Consultants
Choosing Components: Part 1 - Component Engineering Consultants

... requirement. One such parameter is the current gain of a BJT, called hFE or beta. Transistors with the same part number can have values of beta that span a range of 3-to-1 or more. What's more, the value of beta can change with temperature and even can change with collector current. The way to deal ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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