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Meaning of “with respect to rotor and stator”

In the following example, when it says “with respect to stator” and “with respect to rotor”, did they mean the rotor part of the synchronous generator in both cases? Example: The excitation field in ...
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1answer
58 views

Clock Deskewing and flip flops

I have a question in my text book that I do not quite understand. I was wondering if someone could please explain what the question means? Such as, what is a deskewed flip flop. How would one find the ...
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0answers
30 views

Where can I find synchronous machine parameters to use in a PSCAD simulation?

I am trying to observe a loss of field on synchronous motors of different types and sizes. PSCAD seems to want a DQ equivalent circuit. I've Googled the problem and tried several manufacturers' ...
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2answers
115 views

synchronous buck ls-FET switching losses and dead time minimization

I'm designing a Synchronous buck converter. I'm having doubts regarding the following: In the rectifying period of the converter, using a Schottky diode in parallel with the low side MOSFET will ...
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1answer
64 views

Choosing Altera Quartus II clock rate for stopper

I'm using Altera Quartus II to built a stopper. I'm using 2 counters and I need to choose the right clock rate to get pulse every 1 sec. There are only two options in Quartus for the clock: 27Mhz and ...
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3answers
206 views

How to perform a synchronous output on the Arduino?

I have a device I'm trying to control with the Arduino. It works like this. Arduino sets and holds 'ready line' to 5V high. Device sees ready line high and sends 16 clock pulses for two bytes of ...
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2answers
104 views

How is a synchronous 214 rpm motor for a 50 Hz mains possible?

According to Wikipedia at steady state, [...] the rotation period is exactly equal to an integral number of AC cycles. Now I have a brief description of a three-phase motor designed for 50 Hz AC mains ...
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1answer
133 views

Sequential Circuit Diagram: D Flip-Flop

Sequential Circuit Diagram: D Flip-Flop Answer Key ...
4
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1answer
111 views

Can a synchronous regulator “chirp” in burst mode?

I'm looking at (the millions of) buck regulators available for a project where the board will be a host board for a Gumstix Dual Cortex A9. This can pull quite a bit of current at maximum so I was ...
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3answers
1k views

How to synchronize two microcontrollers to micro-second accuracy?

I need to synchronize two micro-controllers so that they can measure the speed of propagating waves. The time delay measurements need have microsecond accuracy (error less that 1/2 of a microsecond). ...
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2answers
75 views

How electronic components keep synchronized?

So, voltage travels super fast right? Still, there has to be some lag between voltage traveling from one transistor into another. How is a circuit kept synchronized then?
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2answers
139 views

Why do displays with auto-synchronization function get out of sync? (pixels blur) [closed]

I'd like to know why LCD displays that have the "Auto" button need it in the first place. Are they losing sync with the signal because of some special feature or all LCD displays really suffer from ...
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2answers
397 views

Clock skew? Good or bad?

So, I've been reading up on clock skew. I came across the fact that clock skew can be incredibly useful, in the sense that positive skew can be used to speed up the circuit by increasing the clock's ...
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2answers
1k views

Design a 4-bit synchronous counter using D filp-flops and 16 x 4 ROM that can generated any arbitrary counting sequence

What are the restrictions on the counting sequence? Give the ROM contents for the following sequences: a) 12, 13, 14, 15, 5, 6, 7, 0, 1, 2, 3, 4, 11, 10, 9, 8, 12, 13, etc... b)8, 9, 0, 1, 8, 9, ...
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1answer
172 views

Regulating a small clockwork synchronous AC motor

Is it possible to drive a small synchronous motor with permanent magnetized rotor to other speeds it is designed for? I tried to drive a small clockwork AC motor which is symmetrically build but ...
4
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3answers
277 views

Sync video with data

When I have a datalogger and I want to sync a video-file to the recording, what would be an easy method? The logger and the camera both have an internal clock, but they may not be set exactly to the ...
4
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1answer
301 views

Synchronous motor mystery

Not too long ago I acquired an old ('70/'80) German flip clock. I found out that this clock is driven by a one-phase synchronous engine. I can't get the motor to run. I (carefully!) connected the ...
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2answers
1k views

Syncing Signals with Global Clocks in FPGAs/CPLDs and Edge Detection

I am a newbie in digital logic design and I'm trying to get my head around syncing external signals to the global clock in an FPGA. For example, the SCK signal/clock fed to an FPGA by the SPI Master. ...
2
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1answer
621 views

How to implement a synchronization signal with AVR (attiny45)?

In pseudocode I want to do following: ...
4
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3answers
465 views

Timing inside a shift register

How I imagine synchronous digital networks work: data lines are sampled at rising clock edge, a set of transients occur, system settles, and data lines are sampled again on next rising edge. I would ...
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1answer
2k views

Ripple counters versus synchronous--pros, cons, and power consumption

Substantial edit--note that David Kessner's answer was written in response to the original posting; view the edit history to see what he was responding to From what I've read of digital design, there ...