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Synchronous and Asynchronous Teaching | Teaching and ...

Synchronous Teaching. Synchronous teaching uses tools and strategies for real-time, "synchronous" interaction between students and instructors. This method usually keeps a more traditional face-to-face schedule for class instruction.

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PPT – Asynchronous vs. Synchronous Design Techniques for ...

World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Winner of the Standing Ovation Award for "Best PowerPoint Templates" from Presentations Magazine. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect.

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Synchronous Generator - an overview | ScienceDirect Topics

Alireza Khaligh, Omer C. Onar, in Power Electronics Handbook (Fourth Edition), 2018. Synchronous generators. Synchronous generators are commonly used for variable speed wind-turbine applications, due to their low rotational synchronous speeds that produce the voltage at grid frequency. Synchronous generators can be an appropriate selection for variable speed operation of wind …

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III. Synchronous Motors

synchronous motor has a synchronous reactance of 1.95 ohm/phase. Compute the max. torque in N-m which this motor can deliver if it is supplied from a constant frequency source and if the field excitation is constant at the value which would result in unity power factor at rated load. Assume that the motor is of cylindrical rotor type.

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Grid-Following Inverters and Synchronous Condensers: A ...

Fig. 3. Two-bus system setup with a grid-following PEC, a synchronous condenser, a constant power load, and a Bergeron model transmission line with varied length. Transformers interface the synchronous condenser and PEC. The GFL is operated only with a frequency droop func-tionality, where a change in frequency outside of a deadband

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What is SDRAM (synchronous DRAM)? - Definition from WhatIs.com

SDRAM (synchronous DRAM) is a generic name for various kinds of dynamic random access memory (DRAM) that are synchronized with the clock speed that the microprocessor is optimized for. This tends to increase the number of instructions that the processor can perform in a given time. The speed of SDRAM is rated in MHz rather than in nanoseconds ...

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Synchronous machines - SlideShare

Synchronous machines 1. Synchronous Machines 2. Synchronous Machines • Synchronous generators or alternators are used to convert mechanical power derived from steam, gas, or hydraulic-turbine to ac electric power • Synchronous generators are the primary source of electrical energy we consume today • Large ac power networks rely almost exclusively on synchronous generators • Synchronous ...

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PPT – Networks on Chip A Paradigm Change ? PowerPoint ...

World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Winner of the Standing Ovation Award for "Best PowerPoint Templates" from Presentations Magazine. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect.

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Switch Mode Power Supply (SMPS) Topologies

a multiphase synchronous buck converter. Figure 3 shows the multiphase synchronous buck converter with a gate pulse timing relation of each leg and the input current drawn by the converter. The fixed time/phase is given by Time period/n or 300 /n, where " n" is the number of the converter connected in parallel.

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AN 433: Constraining and Analyzing Source-Synchronous ...

source-synchronous interfaces. In source-s ynchronous interfaces, the source of the clock is the same device as the source of th e data, rather than another source, such as a common clock network. Figure 1 shows a block diagram of a basic source-synchronous interface. Introduction Source-synchronous interfaces are used fo r high-speed data ...

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What is Synchronous Technology? | Siemens Software

Synchronous technology enables you to rapidly create new concept designs, easily respond to change requests, and make simultaneous updates to multiple parts within an assembly. Re-using designs, working with imported data, making changes…synchronous technology helps you do the things you do all the time—faster and easier.

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Asynchronous Chips Seminar PPT with Pdf Report

Sumit Thakur CSE Seminars Asynchronous Chips Seminar and PPT with pdf report: Computer chips of today are synchronous. They contain a main clock, which controls the timing of the entire chips. This page contains Asynchronous Chips Seminar and PPT with pdf report.

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AN 545: Design Guidelines and Timing Closure Techniques ...

covers metastability, synchronous and asynchronous resets, and synchronizing an asynchronous reset. This section also describes techniques for passing control and data signals across clock domains using a handshake mechanism and FIFO. The next section covers the concept of timing requirements at the system level (I/O

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4-bit up/down binary synchronous counter

The 74F169 is a 4-bit synchronous, presettable Modulo 16 up/down counter featuring an internal carry look-ahead for applications in high-speed counting designs. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when instructed by the Count

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Asynchronous and Synchronous E-Learning | EDUCAUSE

Synchronous e-learning, commonly supported by media such as videoconferencing and chat, has the potential to support e-learners in the development of learning communities. Learners and teachers experience synchronous e-learning as more social and avoid frustration by asking and answering questions in real time. 8 Synchronous sessions help e ...

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Lecture 23: I/O

– Communicate between chip and external world – Drive large capacitance off chip ... Source-Synchronous Clocking Send clock with the data Flight times roughly match each other – Transmit on falling edge of tclk ... Microsoft PowerPoint - lect23-io.ppt

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SN74ALS867A data sheet, product information and ... - TI.com

Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincidentally with each other when so instructed by the count-enable (,) inputs and internal gating. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters.

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Synchronous generators - SlideShare

Synchronous generators. 1. Spring 2013 Synchronous Generators. 2. Construction of synchronous machines In a synchronous generator, a DC current is applied to the rotor winding producing a rotor magnetic field. The rotor is then turned by external means producing a rotating magnetic field, which induces a 3-phase voltage within the stator winding.

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L7: Memory Basics and Timing

L7: 6.111 Spring 2004 Introductory Digital Systems Laboratory 5 Static RAM (SRAM) Cell (The 6-T Cell) WL BL VDD M5 M6 M4 M1 M2 M3 BL Q Q State held by cross-coupled inverters (M1-M4) Retains state as long as power supply turned on Feedback must be overdriven to write into the memory WL BL BL WL Q Q Write: set BL and BL to 0 and V

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System-on-Chip Architectures 11 Systolic arrays

System-on-Chip Architectures Kalle Tammemäe, Dept. of CE, Tallinn Technical University 2000/02 2(18) 11.1 Applications Basic matrix algorithms: matrix-vector multiplication matrix-matrix multiplication solution of triangular linear systems LU and QR decomposition (resulting triangular matrices) preconditioned conjugate gradient (solving a set of positive definite

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02 1 synchronous-machines - SlideShare

6. Balanced Steady State Operation Net mmf wave due to the three phase stator windings: travels at synchronous speed appears stationary with respect to the rotor; and has a sinusoidal space distribution mmf wave due to one phase: Figure 3.7: Spatial mmf wave of phase a SM - …

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Computer Organization and Architecture Semiconductor main ...

16Mbit chip is 1M 16-bit words —Other extreme: one bit per chip, 16M memory uses 16 1-bit chips; with bit 1 of each word in chip 1 etc. Organization in detail • A 16Mbit (2 MByte) chip can be also organized as a 2048 x 2048 x 4bit array —Reduces number of address pins – Multiplex row address and column address – 11 pins to address ...

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Synchronous Counter - SlideShare

5. Synchronous counter In synchronous binary counter, clock pulses are applied to the CP inputs of all flip-flops and triggered simultaneously. If J = K = 0, the flip-flop remains unchanged. If J = K = 1, the flip-flop complements. For example, the first flip-flop A0 is always complemented.

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DRAM: Architectures, Interfaces, and Systems A Tutorial

Read Timing for Synchronous DRAM (RAS + CAS + OE ... == Command Bus) Command Address DQ Clock Row Addr Col Addr Valid Data Valid Data Valid Data Valid Data ACT READ RAS CAS Data T ransf er Column Access Transfer Overlap Row Access. DRAM TUTORIAL ISCA 2002 Bruce Jacob David Wang University of Maryland

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Permanent Magnet Synchronous Motor (PMSM) Control ...

The Permanent Magnet Synchronous Motor (PMSM) is an AC synchronous motor whose field excitation is provided by permanent magnets and that has a sinusoidal back EMF waveform. The permanent magnets enable the PMSM to generate torque at zero speed. PMSMs offer higher torque density as compared to AC Induction Motors (ACIMs), providing a smaller ...

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Synchronization over Ethernet

Synchronization over Ethernet Standard for a Precision Clock Synchronization P t l di t IEEE 1588Protocol according to IEEE 1588 Synchronous Ethernet according to ITUSynchronous Ethernet according to ITU-T G 8261T G.8261

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Synchronous vs. Asynchronous Classes: What's the ...

Synchronous online classes run similar to traditional classes, with attendance, lectures, and discussion periods. Students typically attend and participate via webcam or livestream forum and may move into smaller virtual rooms for group work or a teacher's office hours. Instructors can physically demonstrate specific problems or processes and ...

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For Synchronous Generator | PDF | Magnetism | Electrical ...

• Since the speed of rotation of the rotor must equal the synchronous speed, and since the synchronous speed is set by the grid frequency f according to NS=120f/p where p is number of poles, the induced rms voltage will be: E f 4.44 K w fN Here, Kw, called the winding factor, is a reduction factor between 0.85 to 0.95 that accounts for the ...

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Lecture 6: Synchronous machines - UNLV

Power and torque in synchronous generators The real output power of the synchronous generator is P V I V I out T L A 3 cos 3 cos The reactive output power of the synchronous generator is Q VI VIout T L A 3 sin 3 sin Recall that the power factor angle is the angle between V …

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Lecture 7 - Memory

– Push chip select high and wait for a clock edge • Read timing (CY7C102A, 256K ×4 Static RAM) –t AA, Address to valid data (12ns max) –t OHA, Data hold from address change (3 ns min) –t ACS, chip select to data valid (12 ns max) –t CSLZ, chip select to low impedance (3 ns min) –t CSHZ, chip select to high impedance (6 ns max)

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