Questions tagged [voltage-clipping]
The voltage-clipping tag has no usage guidance.
63
questions
0
votes
2answers
45 views
Increasing diode clipping influence
I'm working on a guitar pedal distortion circuit and I've been experimenting with introducing diode clipping into the signal. My question is, how can I increase the influence this diode clipping has ...
0
votes
1answer
41 views
Can I take the voltage across diode to be same as the input voltage in a limiting circuit?
My doubt is a trivial one, can I take VD1 and VD2 to be V1? If so doing that doesn't make sense to me 'cause when the current flows VD1 is certainly not equal to V1.
This isn't a Homework question, ...
0
votes
0answers
33 views
Clipper confusing circuit
I would like to ask some help to understand the workings of the circuit. The book(Malvino 7th edition,4th chapter) briefly says that:
It can be used to remove voltage drop that D1 is causing. D2 ...
0
votes
3answers
338 views
Confusion regarding Biased Clipper Circuit
When the voltage is lower then the biased voltage its appear in Output Voltage, But just when the voltage get larger than Bias Voltage (Vb) the Diode start Conducting and its acts as SHORT and the ...
1
vote
2answers
742 views
How to turn an LM741 op amp into a distorted portable guitar amplifier?
Here is my circuit (to the best of my recollection):
simulate this circuit – Schematic created using CircuitLab
NOTE: The voltages and resistance values are not known to me and what you see in ...
0
votes
1answer
219 views
clipper circuit in multisim
I have got a clipper circuit as shown in the pic .I am confused why there are two differnt waveforms in two halves (separated by the red vertical line). And what is the actual waveform we obtain ...
3
votes
3answers
818 views
Clipper circuit: Why some of the portion of the positive input cycle remains un-clipped due to the diode cut-in voltage
I understand that when the input waveform is positive, the diode does
not conduct hence the positive half cycle of the input waveform gets
clipped. Also, when the input waveform is negative, then ...
1
vote
3answers
460 views
Why does voltage stay the same regardless of resistor connect to the source
I'm learning about clipping circuits, and I have hit a road block with my understanding of one particular problem. The circuit in question is a serial limiter. My issue is why does the output voltage ...
3
votes
2answers
108 views
How can I see if my filterless class-D audio amplifier is clipping or not?
So I'm using MAX98357A, which is a filterless class D audio amplifier. I'm running it using Vcc = 5 V. Looking at the page 28 of the datasheet, I see the folliwing formula for output voltage:
Output (...
-4
votes
1answer
152 views
Lower the voltage on a 5V PSU to 4.9V
I've been working on a mostly software based project that includes an addressable LED strip. I am powering the strip with an old ATX PSU and the LEDs seem to be vely unstable when at low brightness. ...
0
votes
1answer
541 views
Causes for Saturation in Transimpedance Amplifier Circuit
I have a transimpedance amplifier circuit with a Silicon Photomultiplier as shown below:
simulate this circuit – Schematic created using CircuitLab
We're using the SensL MicroFJ-60035 Silicon ...
3
votes
1answer
232 views
Operational Amplifier (UA741) clipping well under voltage rails asymmetrically EDIT: had same issue with different opamp
EDIT 2: I should point out we were having the exact same problem with a OPA2134PA.
EDIT: Problem persists up to +-30V and adding parallel resistors to the virtual ground capacitors did not help ...
3
votes
2answers
183 views
What are some causes of amp clipping aside from those related to exceeding the rail voltage
I often encounter problems where an amp may exhibit clipping despite the input signal being well below the rail voltage. I understand that there are numerous problems that cause this.
However, what ...
4
votes
1answer
532 views
Replace transistor used as diode
in the schematic on page 5 of this document:
The note says:
T2a is connected as a diode (clipping diode) to protect the power
source against higher Vcc voltages.
I assume from this I can ...
0
votes
1answer
708 views
Over-voltage protection for microcontroller ADC input pin.
I have a microcontroller with a 3.3v ADC input and I want to protect it from over-voltage.
My microcontroller already has some input protection diodes but I don't want to rely on them alone. This ...
-6
votes
2answers
355 views
Rail-to-rail op amp clipping well below rails [closed]
I'm using a rail-to-rail op amp (LM6132) with its power rails at -5V and +5V, connected to a function generator. I expect to be able to give it a maximum signal of 10V peak-to-peak ((i.e. -5V to +5V)) ...
0
votes
2answers
276 views
Unconventional Op-Amp Clipping
I have been scratching my head for a few weeks about the behavior of my circuit (attached). In this circuit I give a arbitrary known input signal to drive a current through R1 which is a thermistor. I ...
0
votes
3answers
828 views
Internal clamping circuit at the input pins of an MCU
I understand that the internally two diodes exist at the input of a microcontroller and one end of it is connected to Vdd and the other end of the second diode is connected to ground and when the ...
0
votes
1answer
245 views
Clipping of a negative feedback amplifier
I need help solving the following exercise from my book.
I am not very knowledgeable in analyzing biasing circuits but I have understood the following:
\$R_1\$ and \$R_2\$ are feedback resistors. ...
0
votes
1answer
515 views
Transfer characteristic of circuit
I'm trying to find out the transfer curve (Vin Vs Vout) of the circuit given below.
I approached this way:
Is it the right curve?
0
votes
3answers
281 views
DC sweep analysis not matching transient analysis for amplifier
I'm building a little sound amplifier for something and can't quite understand why it's not a powerful as I though it might be. This is the circuit, and a simulated DC sweep is shown below:-
Vdrive ...
0
votes
2answers
357 views
Clipping negative voltage with resistor divider as load
I have a dual-supply op-amp (±12V) that outputs a signal in the range of ±3V. I cannot neither change the op-amp configuration nor add another one. Please not the schematic below is just an example. ...
2
votes
1answer
3k views
What is the role of zener diode in this clipper circuit?
i don't know exactly why we're adding the zener diode. My guess would be that it functions as a voltage regulator but that's as far as i can go.
1
vote
3answers
564 views
Is the diode in this circuit connected in parallel with the resistor?
Using the example below my teacher started to explain the parallel clipping circuit.
Then he said that the diode is connected in parallel with the resistor but I couldn't understand why, because I ...
0
votes
1answer
661 views
Signal buffer with op-amp clamping and voltage bias
I'm new to EE and have a question about signal buffering. I'd like to use two brief paragraphs to give some background and context.
I live in the SE Asian country-side. Mains supply (230VAC 50Hz) is ...
0
votes
0answers
284 views
Unity Gain Clipping Circuit
Please see the image below:
This is an idea for a unity gain clipping circuit to be used
in a guitar effects unit as a 'distortion' pedal.
Some percentage of a peak detector output voltage feeds ...
1
vote
0answers
2k views
Speaker protection using only zener diodes?
It is crucial to match amplifiers to speakers correctly and use them with care. But in some cases you want extra protection from blowing up the speaker. I have thought of a ridiculously simple idea -...
0
votes
1answer
162 views
How to clip a portion of waveform and pull it to zero level?
I've generated a sawtooth waveform of 5v and i want to allow 1.5v to 2.5 v and rest of the voltage should be detected as zero. I tried using clipper but it didnt get desired result. Is there any ...
-1
votes
3answers
3k views
What frequencies blow out the speaker most?
If you were to put - 5W speaker to 10-15W amplifier which - bass or treble will most likely damage it first?
From what I've heard and learned - boosted bass makes speaker move back and forth and if ...
1
vote
1answer
1k views
Soft diode clipping for 'controlling' amplifier levels and avoiding harsh distortion
The title might be misleading/confusing. I'm building an amplifier with TDA2003 IC's which could be both suitable as a guitar amplifier and as a music amp.
Where diodes come into this circuit? As ...
0
votes
2answers
199 views
Clipping observed across small resistor when attempting to measure op amp output impedance
While trying to measure the output impedance of a follower circuit involving a 411 op amp, I connected a small resistor (27ohm) to the output (at Vout).
Using an oscilloscope to measure the voltage ...
0
votes
2answers
591 views
Non-inverting amplifier clips to unexpected voltage
I'm trying to build a circuit where I control a small DC motor using an Arduino. My goal is to be able to sense the load on the motor, and shut it off or reverse when the load is too high or the motor ...
0
votes
2answers
626 views
Why do parallel diode clippers work
From a fundamental/general perspective I am looking to better understand why parallel diode clippers work the way they do. I understand in general how parallel configurations work (such as voltage is ...
1
vote
0answers
128 views
Master-Slave Amp clipping/saturating problems
Building a master-slave amp to drive a piezoelectric driver for a sonoluminescence experiment. Having a problem with the amplification.
The rails are at +/- 45 V (sorted that problem out, thanks to ...
0
votes
3answers
2k views
3.3V ADC protection
I'm using a microphone connected to a TIVA's ADC. The output for the microphone is around 100mV and I used some op-amps to make it work from 0V to 3.3V. However, if the user yell at the microphone, it ...
2
votes
2answers
263 views
viability of idea for low voltage signal clipping (distortion) for guitar effect
I want to create an guitar distortion effect.
What I want is a unity gain buffer op-amp that clips the signal.
In the drawing below there is a circuit found on this forum here
which will clip a very ...
5
votes
2answers
1k views
Operational amplifier output is asymmetrically clipped
Why would an amplifier output be clipped asymmetrically?
I am building a small headphone amplifier using the Texas Instruments TPA6100A2. I have built up the circuit just as in the TPA61002 ...
1
vote
2answers
3k views
Voltage Clipping with Two Series-Opposing Zener Diodes
Theory
Schematic for Voltage Clipping with Two Series-Opposing / Bidirectional Zener Diodes
Consider the following schematic for voltage clipping with two series-opposing/bidirectional Zener Diodes \...
5
votes
1answer
521 views
Reduced output of op amp peak detection and hold circuit
I have used op amp peak detector & hold circuit for finding the peak of voltage obtained from scintillation detector and pre-amplifier.
I observed that the observed peak and hold output was ...
2
votes
1answer
2k views
design: low voltage clamp circuit (0-200mV)
I need a active safety circuit to clamp voltages to the range of 0-200mV, independent of temperature and very precisely.
I have simulated, using TINA-TI, 4 precision clamps in series to do this, see ...
1
vote
3answers
596 views
Design a circuit that would turn off output between two input voltage levels
The circuits for the three stages of input voltage can be drawn easily, but I am confused about how to make the circuit "identify" the voltages.
For eg, How can I turn off output exactly between -3V ...
0
votes
1answer
520 views
Output from amplifier is clipping
I have the following circuit and I want to process the output of the op-amp through an ADC. However, as you can see in the picture the signal is clipping at 1.89 Volts, rather than 3Volts. Why is it ...
1
vote
1answer
137 views
Is it a good choice to use mbrb1545ct schottky for the 5 MHz signal clipper?
For my application, I need to clip 5 MHz(max) signal to stay within ±0.5 V. I selected two of mbrb1545ct Schottky to clip my signal. I selected Schottky because I think they are faster to turn on and ...
0
votes
3answers
627 views
jfet preamp output attenuated and clipped on bottom rail when connected to codec
I am currently working on an embedded audio processing system for electric guitar. I have constructed two JFET preamps (left and right channels) based on the j201 transistor using the common source ...
2
votes
1answer
146 views
Waveform Clipper
I need help solving this circuit. It's supposed to be a waveform clipper and I already simulated it, however I want to know how the circuit works and so far I haven't been able to analyze it properly: ...
-2
votes
1answer
332 views
Clipping circuit simulation producing unexpected result
I am playing around with a clipping circuit to protect a adc on my microcontroller. I beleive the following will work, but when I simulated the circuit I saw something funky. Any ideas on why adding ...
8
votes
5answers
4k views
How to prevent op amp from saturating?
How can an op amp be prevented from going into saturation if the feedback is intermittently disconnected?
For example, in this circuit (simplified case of a real-life problem), the op amp acts as a ...
1
vote
0answers
1k views
Series diode voltage clipper, on Multisim clipping and shifting on positive and negative voltage
This is my circuit:
I’m testing a Series diode clipper circuit, and the end result should be this:
(I've used 5V in my circuit, not 10V like in this plot, but this is not the issue)
Instead what I ...
2
votes
2answers
2k views
Low voltage audio amplifier clips on 8 ohm loads
Exposition time:
One could call me a freshman in electronics and I just designed my first little audio amplifier for headphones. (Pocket design, I want to be able to drive 4 headphone pairs from a ...
2
votes
2answers
2k views
How to modify this circuit for variable clipping without affecting gain?
Below is a basic implementation of a circuit used to clip an incoming signal using the diodes in the feedback loop of the op-amp. Since the diodes are different they have different characteristics, ...
