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Hello All.
I can't understand how this triac is trigger to enable the on state.
But the important is the power side
When the MOC3021 is on off state.
Ig = (V - Vg)/ (R4 + Rload )
where Vg is Vgate - Vmt1
Ig should be:
Ig < Igt
MOC3021 is on:
Ig' = ( (V - Vg)/ (R4 + Rload ) )...
Hello all.
Why there is a frecuency limits on cmos digital circuits? For example the microprocessors. I means, more frecuency more heat. Why there is more heat? Its because the Vgs capacitance and the impedeance goes up with more frecuency? due to it drives more voltage drops?
Thanks in...
The hub is simply a physical connection, so regarding ethernet protocols, there would be ethernet frame collisions if there are more than one host connected to. Its a broadcast domain.
The switch has an ASIC controller (the simples ones)which avoid ethernet frame collisions between ports...
Re: Max bandwidth [bps] vs frecuency spectrum [z]
Yes I thought that! I dont care about regulation because If someone use a narrow laser beam to transmit information between two points, it wouldnt bring interference to the EM spectrum due to the little space beam. Or if the signal goes through...
Re: Max bandwidth [bps] vs frecuency spectrum [z]
But, why is that? there is a fundamental physical basis or simply because it is governed by a governmental institution?
Re: Max bandwidth [bps] vs frecuency spectrum [z]
Thanks for the reply but why we can get more bandwidth taking a frecuency translation to microwave than the radio frecuency?
I think that if there is a baseband signal of 10 Mbps, and using a 16-QAM modulation (will get 4bps/Hz), so it takes...
Max bandwidth [bps] vs frecuency spectrum [z]
Hello All. I allways have a question regarding the max bandwidth that a carrier wave can it modulate or transport. Due to as we all know, for more frecuency has a carrier, more bandwidth is available. Why is that?
I couldnt find a develop in the...
Thanks. So, do you mean the the filter function (called float DigFil(invar, states)) just can gets as input invar and the output sumnum can be store in another array (witch will be the filter output).
The vector (float *state), will gets the previous ADC values, right?
state[0] = invar1...
Thanks I didnt know that but I dont know what state to use. Where I can or How I can find them?
this is the code with initialize capability
float DigFil(invar, initval, setic)
float invar, initval; int setic;
/******************************************************************************/
/*...
Hello All. I got this code from filter solution. Its a low pass filter of 4 order but I dont understand what is the states pointer.
float states [];
thats the function that I want to filter?
I get from the input ten values that I want to filter. I've to pass it to the filter by the array...
Hello All.
There is a mimo base station which has N antennas disposed in circle.
The distance between the first antenna n=0 and the last one n=N-1 is 2 π R
If the signal has to be poyting in some direction. All antennas contibute with an amplitud and phase? or just a few of them?
And...
I took a Pierce oscilador and I modified it to one transistor. I remember that I saw a paper from on semiconductor or texas which speaks about harmonic oscillator using this oscillator type.
it reachs the permanent condition. It stabilizes obtaining a sinusoidal signal after the trasient. You...
When I need to do an oscillator I always make this one:
Thats because its a simple circuit and when I implemented it always works.
So, to make an FM modulator I need to modify the frecuency so for that I can use a varicap. The circuit I designed is;
as you can see in the next pictures...
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