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CA235001EN
CA235001EN

... of arrester ground, secondary neutral, and transformer tank provide additional protection to distribution transformers and improve continuity of service to customers. Protective gaps provide effective and inexpensive surge protection for the primary neutral of a system (grounded only at the substati ...
Drives - Siemens
Drives - Siemens

... The inverter output shall be generated by IGBTs. Pulse Width Modulation strategy will be of the space vector type implemented to generate a sine-coded output voltage. The controller(s) shall be suitable for use with any standard NEMA design B squirrel-cage induction motor. The drive can be located u ...
2.1 General Information
2.1 General Information

... 12VDC battery bank without reconfiguration of their battery bank. The AC/Battery priority switch and auto generator start functionality make it ideally suitable to work in either backup power or renewable energy applications. In AC priority mode, when AC power cuts off (or falls out of acceptable ra ...
Kinetis-M Two-Phase Power Meter - Reference Design
Kinetis-M Two-Phase Power Meter - Reference Design

... regions. Depending on the target region, it is pre-certified according to different standards; the ANSI C12.20-2002, accuracy classes 0.2 and 0.5 for the U.S., and the international standard IEC 62053-22, accuracy classes 0.2S and 0.5S for Japan. The integrated Switched-Mode Power Supply (SMPS) enab ...
How to write (and read) audio specifications Introduction About this document
How to write (and read) audio specifications Introduction About this document

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... 1) For the on board digital circuitry. We figured this should pose no problem, since all digital and microcontroller circuits, which we believe, will be used in conjunction with the D200, are powered by a regulated 5 Volt supply. 2) The on board DC-DC converter. This circuitry generates 3 independen ...
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... [3]and[4]. Carry save adder (CSA) circuits is built up with IMPLY logic with the basic gates obtained with memristors and their working are briefly explained. The total number of memristors required iscompared with the number of transistors required in constructing the same circuit with CMOS logic. ...
Electrical troubleshooting Yerf Dog LAST UPDATED: 10/8/2011 See
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... To accurately diagnose your ignition system, you will need to do each of these steps in sequence. Start with step 1 and work through this guide completely. This guide was originally written for the Yerf-Dog GX150, but has been re-written to cover almost any of the 150cc buggies, scooters, or ATV's w ...
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... Noise in the recorded neural signals was minimized using two techniques. First, the 250 kHz operating frequency of the system was tuned, such that the aliased harmonics of the switching frequency lay above the bandwidth of the amplifier used for neural recording. The second approach was to limit th ...
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section 15172

... rejected. 6 pulse, passive filters, and 12-pulse rectifiers are not acceptable and ...
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... The rectifier receives AC current from the magneto and transforms it into direct current (DC). The voltage regulator, included in the same unit, limits voltage as follows to prevent any damage to electrical components. Model ...
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... observe (P&O), incremental conductance (IC), and short circuit current and open circuit voltage. Some techniques are also presented based on artificial intelligence, such as fuzzy logic and neural network, but have more computation load ...
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... EN: The GATE driver is enabled if the positive threshold is exceeded and the internal POR and UVLO thresholds have been satisfied. EN can be used as a logic control input, an analog input voltage monitor as illustrated by R1/R2 in the Functional Block Diagram, or it can be tied to VCC to always enab ...
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... Y of PTL is connected to input of another inverter. When B is Hi S1 closes and Y=A. Node Y will be connected to either VDD (if A is Hi) or to ground (if A is Low). But what happens when B is low and S1 opens? Node Y will now become high-impedance node. If vY was zero it will remain so. However, if i ...
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... So a relatively large current flows through the battery and part of it branches off to pass through each bulb. Let’s improve on our simple “follow the current dots” estimation of the current by adding some meters and take some actual data for both circuits. Edit circuit (a) to add three ammeters and ...
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... When junction box is mounted flat on a ceiling or beam surface (not recessed in ceiling) SLD6RAD=6” SLD Round Surface J-Box Adapter, 7.92” O.D. (for 4-inch round or octagon junction boxes.) SLD6SADPLT=6” SLD Square Surface J-Box Adapter Plate (For 4-inch square junction boxes, use with SLD6RAD.) ...
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... I2C controllers or host processors and, therefore, significantly reduces the development time of the users. An AD5171 evaluation kit includes the software, connector, and cable that can be converted for factory programming applications. The AD5171 is available in a compact 8-lead SOT-23 package. All ...
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... given circuit. Sets of connecting wires are commercially available in various lengths and colors. To insert a connecting wire, make sure its bare ends are straight and push each end vertically all the way into a hole. A pair of long-nosed pliers can help in this task. Electronic components such as ...
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... to reproduce separate audio streams simultaneously. The speaker amplifier gain of the MAX9789A is selectable by jumpers J3 and J4. The MAX9789A also features a 120mA, fixed 4.75V or adjustable 1.21V to 4.75V, low-dropout linear regulator. The EV kit is shipped with the MAX9789AETJ+ installed. The EV ...
IE_F10_lecture10
IE_F10_lecture10

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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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