Hey everyone,I am new here.
I am given a homework to implement a limiter to limit the voltage between +4.3V to -6.3V,and +6.3V to -4.3V can you please guide me how can we draw its schematics.
Thanks in advance.

 

I use Eagle 7 to draw schematics, but that is because it's what I'm familiar with. There are numerous free schematic programs available to use.

 

I use Eagle 7 to draw schematics, but that is because it's what I'm familiar with. There are numerous free schematic programs available to use.

Ok can you guide me how can we make its circuit.

 

I am given a homework to implement a limiter to limit the voltage between +4.3V to -6.3V,and +6.3V to -4.3V

Please post the original text of the assignment, because what you have written is contradictory.

 

Please post the original text of the assignment, because what you have written is contradictory.

. Input sinusoidal wave voltage 9 Volts (Amplitude) and Frequency 50Hz.
.Briefly describe the working of both circuits.
.Draw input and output waveforms.
.Implement your design in proteus.
.Show your results using Analogue Analysis Tool in Proteus
. Set your time axis that 4 waves are accommodated on Analogue Analysis Tool.

 

So it sounds like you are supposed to develop two circuits, each of which clips the positive and negative portions of a 9V (p-p or RMS?) waveform at different levels, right?

 

So it sounds like you are supposed to develop two circuits, each of which clips the positive and negative portions of a 9V (p-p or RMS?) waveform at different levels, right?

yes

 

Lets help you design your circuit.
Because we don't know where the signal is coming from let's assume it has a large amount of power. How would you limit the amount of power?

 

Lets help you design your circuit.
Because we don't know where the signal is coming from let's assume it has a large amount of power. How would you limit the amount of power?

If we are dealing with a signal that has a large amount of power and we want to limit the power before it enters our circuit,we can use a power limiting or protection circuit. One common device for this purpose is a resistor, which can act as a power attenuator.

 

Hey everyone,I am new here.
I am given a homework to implement a limiter to limit the voltage between +4.3V to -6.3V,and +6.3V to -4.3V can you please guide me how can we draw its schematics.
Thanks in advance.

Are you the same person as another thread starter or are you two sharing the same computer.
You are allowed to have only one account on AAC.

 

resistor

Good.
Do you know of a device that conducts current if the voltage is too large. Hint, some type of diode.

There is more than one way to do this job.

 

Good.
Do you know of a device that conducts current if the voltage is too large. Hint, some type of diode.

There is more than one way to do this job.

zener diode

 

This thread will be locked soon unless you respond to post #10, repeated here.

Are you the same person as another thread starter @Orionyx or are you two sharing the same computer?
You are allowed to have only one account on AAC.

 

zener diode

An internet search comes up with these circuits. Don't just copy them. You need to understand.

 

I have the design for a plus and minus clip (voltage limiter) circuit that accurately clamps a signal to two arbitrary reference voltage levels, using just three op-amps, two diodes and one resistor.
I can't post it here, due to this being homework, so I'll have to leave its design generation to the TS, but it shows that an accurate, adjustable, ± clip circuit can be built without a lot of complexity.
Hint: Two of the op-amps act as comparators to clip the input to the third op-amp..

Shown below is the simulated output (green trace) for a fixed input (yellow trace) and varying clip voltage levels (red and blue traces):

 

Hey everyone,I am new here.
I am given a homework to implement a limiter to limit the voltage between +4.3V to -6.3V,and +6.3V to -4.3V can you please guide me how can we draw its schematics.
Thanks in advance.

How much current has to be passed?

 

How much current has to be passed?

Here is a picture from a datasheet for a group of Zener diodes. There is a curve "C4V7" for the 4.7V diode.
Up/down is current and left right is voltage. If you use the part so 5 to 20mA is flowing the voltage across the part is 4.7 to 5V.
Go back to post #14 and the third picture, 4.7V + 0.7V= voltage.
You know 9V signal, resistor of what value, 5.4V of Zener (10ma). What voltage across the resistor? What resistance?

 

Here is a picture from a datasheet for a group of Zener diodes. There is a curve "C4V7" for the 4.7V diode.
Up/down is current and left right is voltage. If you use the part so 5 to 20mA is flowing the voltage across the part is 4.7 to 5V.
Go back to post #14 and the third picture, 4.7V + 0.7V= voltage.
You know 9V signal, resistor of what value, 5.4V of Zener (10ma). What voltage across the resistor? What resistance?
View attachment 313210

Well it seems he might have been guessing that a zener would to it. If more power is to be delivered to the end load, then a zener will not cut it. In that case, sometimes two voltage regulators are used, but that may have limited power also.
In other words, if the 'limited' output has to be able to put out 5 amps, then a zener won't be able to do it alone. Perhaps a series pass transistor also for each polarity.

 

If the prof didn’t specify the power requirements, the student gets to make it up.

 

If the prof didn’t specify the power requirements, the student gets to make it up.

Oh ok if that's the case then anything low power would even work.