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Re: Question about PWM
The frequency of the PWM absolutely affects the performance of the motor drive.
In general you can say, that the higher the frequency the better the motor control.
When the switching frequency of the PWM is lower the current through the motor is not so smooth, thus, the...
Re: Xilinx V/S Altera
First of all you should check which chip is most suited for your design. I do not think that we can say that Altera is alwayst better than Xilinx or vice-versa.
Re: How to set the buad rate of AT89S53 in Mode2 to be 19200
I think this chip is based on Intel 8051 family. If it is so, than the baud rate depends on the crystal frequancy which you use. To be able to select 192000 baud rate, you need to select a 11.xxx MHz quartz cryztal for the...
Re: dc motor..help
Here is some basics:
http://ww1.microchip.com/downloads/en/DeviceDoc/41233A.pdf
http://ww1.microchip.com/downloads/en/AppNotes/00905a.pdf
http://www.allegromicro.com/techpub2/compumot/a13a16.pdf
You can use also google search. :D
I meant the following:
Of course, you need here either buffers with 3-state or open-collector (open-drain). I do not remember whether the serial lines RX, TX are open collector or not for the 8052. If not then a buffer need to be inserted between the TX of the master and the RXs of the slaves...
Re: Servo motor control
AC servomotors are in fact AC machines, but supporting extreme max. currents, loads, and speed.
Having higher max. current the acceleration is higher (can start and stop much faster).
Might have different constructions, like brushless DC machines, when instead of having...
Re: propagation delay
Just to add one thing. Of course before manufacturing thay run several simulations, BUT... thay are all simulations after all. So what you see in the datasheet is what they eventually measure in the lab.
I have constructed some kind of computer network (at least that was how it looked like from the custemer point of view). On the basics the Intel 8051 microcontroller was, an ancient version of the 8052 with this master - slave setup, and RS232. I have used coaxial cable and some line drivers to...
I was able to set other parameters as well. But I have used the GUI of the NN Toolbox. Maybe you should do the same. Or you can ry to find out what the function name of the other parameter settingsd is. Of course, maybe that not help much, but at least you know that through GUI it is possible to...
Re: interrupt
Before entering into an interrupt some registers are saved depending an the CPU used, and the interrupt flag is set, which inhibits more interrupts with the same or less priority to be handled. Because of that, interrupt handler procedures are finished with Return from interrupt...
Re: interrupt
The answer is YES. But the solution is different, depending on the microprocessor you are using. In case of 8051 you can place a JUMP ADDR at the beginning of the memory associated to the interrupt handler and the an ADDR can be a location where you have enough memory. I think...
definition for orthogonal signal
By orthogonal in general is meant that the angle between two vector / plan is 90 degree. In case of sin(wt) and cos(wt) we have the 90 degree angkle between the two phasors (vectors with unity amplitude and roting anticlockwise with w frequency). Because the...
There is some similarity with manufacturing a product, let's say a car. For simplicity we consider a serial assemply line.
It takes 2 units two assemble the carbody.
It takes another 2 units of time to assemble the wheels.
Another 2 units to assemble the chairs.
Another 2 units to assemble the...
Re: "DIfference between "LATCH" and "FLI
I would rather say that flip-flop is more generic naming. Flip-flop has two stable stages, and can be asyncron or syncron.
However, in Wakerley's book (Digital Design-Principles and Practices) by admitting that there is some confusion with these...
Hi
comsians wrote:
That has nothing to do with the large badwidth.
the same is true for the second one:
The first one is a hystorical thing, the first digital transmission was through E1 (T1 ine USA) where 32 time sharing channels (one channel for each voice) was used to be carried on the...
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