Questions tagged [voltage-clipping]
The voltage-clipping tag has no usage guidance.
97
questions
3
votes
2
answers
325
views
How to replace diodes with MOSFETs?
The circuit shown below allows clips the output to +1 and -1. How can I replace the diodes with MOSFETs that have a similar behavior?
- 181
0
votes
2
answers
63
views
Half-wave rectifier with filter and clipped input signal in oscilloscope
When building a half-wave rectifier with a capacitor filter for my electronics lab, there was significant clipping at the peaks of the input signal. When looking at the .csv file pulled from the ...
- 95
1
vote
1
answer
91
views
Determining noise performance of clipper circuit
In some audio circuits (e.g. instrument amplifiers and guitar effects), I've seen something similar to the following op-amp circuit with back-to-back VBE multipliers in the feedback loop to provide ...
- 1,662
3
votes
2
answers
398
views
Why does differential op-amp require mid-point biasing at its input to prevent clipping?
There's an AC signal, 1 V amplitude, which is the input to an op-amp, in differential mode:
However, the output gets clipped and the amplitude isn't unity for some reason, even though gain is set to ...
- 45
0
votes
1
answer
152
views
How to arrange input protection components?
I want to protect the input of my 5V micro-controller from two types of disasters, I am detecting a low on the input (0V):
The input is from a switch. When the switch is on it provides a ground.
Over-...
- 1,231
1
vote
3
answers
134
views
Class AB power amplifier output clipping when input exceeds 1.7V
I have a 3 transistor Class AB power amplifier that I referenced from a working design which has different design parameters and biasing than what I need.
How I intend on using it, it will be used to ...
- 21
-3
votes
2
answers
134
views
Preamp stage for audio amplifier using LM741CN clipping too early [duplicate]
I'm trying to build the preamp stage for an audio amplifier circuit using the LM741CN. I'm using a variable resistor for Rf so that I can vary the gain.
What I'm finding is that when I have Rf set to ...
- 1
0
votes
1
answer
98
views
Why is my clipping circuit involving 1N5819 Schottky diodes in my radar receiver not working?
I have built the circuit shown below and been testing it on a breadboard.
Everything works except the positive half clipping circuitry.
I need it to clip after 3.3V. It currently just clips below 0V, ...
- 55
0
votes
1
answer
75
views
clamping the amplitude of a wave to certain level
I'm trying to prevent a wave form from exceeding 10V.p.p.
I tried various things, but ... what the correct way to do it?
this clamps a 11V signal to +/- 900 mV ... and converts a triangle to square.
...
- 199
3
votes
1
answer
141
views
How can I clip voltage faster?
I have this test circuit, which has this signal:
V1 may change from 1 to 30 V, V2 may change from 0 to 4 V peak to peak.
I need to clip the signal at about 3 - 4 V to feed it to an Op Amp, which has ...
3
votes
1
answer
180
views
Zener diode, clipper circuit
This is the original assignment. My solution attempt is below that.
Explain the output expected from the following circuit and also identify the name of circuit.
(Where VZ is Zener voltages for ZD1 ...
- 43
2
votes
3
answers
359
views
Clipping when using a CD4051 analog multiplexer
Regarding the CD4051 analog multiplexer,
Data Sheet
If I connect VDD to +5 V and VSS, VEE to GND. The analog signals are coming from modules with the analog signal having a DC offset that can be as ...
- 303
0
votes
1
answer
73
views
Clarification on a clipper circuit
I'm reading a paper whose result I am trying to replicate. One of the circuit elements is a clipper circuit as shown below.
This is a very straight-forward circuit. The positive value is limited to \$...
- 181
0
votes
3
answers
138
views
Why isn't there any clipping in this diode circuit?
This is the circuit.
This the input and output graph:
- 1
-1
votes
1
answer
88
views
Properties of Waveform Clipping
I just completed (and submitted) a recent lab report in an electronics class on op-amp circuits. The only implementations of the op-amps so far are in the inverted and non-inverted form.
While ...
2
votes
1
answer
528
views
Why do I have clipping in this emitter follower
I am trying to design a class A amplifier buffer stage (I know it is not efficient.)
I am starting from the simple emitter follower and the next step is to replace the RE resistor with a current ...
- 277
0
votes
1
answer
649
views
Diode alternatives for LTspice
I am using LTspice as opposed to P-spice because I have a Mac. I've been asked to simulate a circuit using 1N914 and 1N4729 diodes, but LTspice doesn't have those diodes. What are equivalent diodes to ...
0
votes
1
answer
29
views
Design a circuit in Ltspice based on the input and output
I need to design a circuit that takes a sinusoidal input with peak of 8V and generate an output such that the positive peaks remain the same and the negative peaks get inverted and have a peak of 4V.
1
vote
2
answers
106
views
Output Stage Clipping
I'm playing around with the circuit below (it's a very slimmed down version of Figure 11.10 from High Power Audio Amplifier Construction Manual pg 348)
Can anyone explain what it is in the circuit ...
- 167
0
votes
2
answers
1k
views
BJT Common Emitter Clipping
Following on from my last question Cascaded BJT Amplifier Load - I'm trying to understand what it is (via math or otherwise) that causes the input signal to appear malformed when the output of the ...
- 167
0
votes
2
answers
630
views
Voltage multiplier does not work
I have a built a simple voltage doubler. the circuit is as below:
simulate this circuit – Schematic created using CircuitLab
This represents only one stage, and my circuit has 4 stages. The ...
- 422
0
votes
0
answers
95
views
Signal clipping in cascade transistor amplifiers
The two-layer voltage amplifier circuit can transfer a signal of up to Vi = 50 mV to the output without clipping.and 1st stages gain Av1=-6.41 . +15 volt is ...
- 87
0
votes
0
answers
67
views
clipper question with non-ideal diodes
Vo for the clipper circuit where Vi = 10sin (6280t) and diodes are 0.6 volts.
I think the simple form of the circuit is like this.
if we don't calculate the resistors. Could the output signal be ...
- 21
0
votes
0
answers
61
views
High voltage high frequency clipper
I want to measure the frequency of a signal around 200khz (max) and the voltage may vary from 10v to 200v peak-peak. I will have only a constant voltage at the time of measurement. Not varying.
So ...
1
vote
1
answer
131
views
Input Voltage vs Output Voltage for a Shunt Positive Clipper with Bias Voltage
Assume voltage drop across diode is 0.7V in this case.
From what I understand
When V(input) is positive, but less than 0.7+V OR When V(input) is negative AKA When the diode is acting as open circuit:...
- 13
0
votes
1
answer
124
views
Transfer characteristics of circuits involving op amp with diodes
How should I approach such questions?
- 13
2
votes
3
answers
180
views
Turning on an automotive relay when enough voltage is avaialble
I'm trying to drive a relay off a dome light in a car, where the dome light fades in smoothly. That is, say, I have a constant ground and the other wire goes from 0 to 12V (up to 14V) over a couple ...
- 131
2
votes
2
answers
313
views
Active clipper terrible performance
I need a clipper for a 10 kHz signal to protect an ADC from possible overvoltage. I'm using the usual active circuit (simulation is in multisim):
Unfortunately the result is very bad, the opamp is ...
- 105
-4
votes
1
answer
254
views
Need op-amp "window clipper", clipping below and above some range of DC
I need to design a kind of window clipper. It should work like this:
Conditions:
Vin: 0-6 V, Vout: 0 V
Vin: 6-8 V, Vout: 0-3 V
Vin: 8-10 V, Vout: 3 V
There are some example values, I need to be ...
- 1
2
votes
3
answers
611
views
Why does the positive wave of my class AB amplifier output get clipped far below rail voltage?
For the past 6 months I've been designing and building a 30W 3MHz audio modulated Tesla Coil driver.
For this, I've created a +-15V linear regulated power supply, an AM modulator using an MPY634, and ...
- 195
0
votes
1
answer
98
views
Need help with theremin oscillator
I'm having trouble getting my colpitt's oscillator to give me nice sinusoids. It seems to be clipping the output for for reasons I don't understand. The circuits needs to oscillate at 7MHz (Body ...
5
votes
1
answer
246
views
Need help designing and implementing an op-amp based distortion circuit
I've been attempting to design a distortion pedal for use with my bass guitar and amplifier. The simulations in LTspice were promising, I moved to implement it and, in short, it did not work.
Note: ...
-2
votes
1
answer
79
views
How can I change transfer function slope after a certain point?
I need to design a circuit for the following transfer function.
I've tried using biased parallel clippers, but the only thing I've managed to do is clipping the output at 5V i.e the slope becomes ...
- 1
0
votes
0
answers
201
views
Sine wave clipping before rectifier when wire resistance is added at secondary of transformer in LTSpice
I'm simulating 4 different circuits, they are all power supplies, with loads, filter capacitors, rectifiers made by four 1N4007s, and transformers fed from 120VAC:
They all have the same problem, ...
- 165
2
votes
0
answers
205
views
Max Input Voltage for a BJT amplifier
I have built a BJT amplifier and I have a function generator connected to the input of my circuit. I have also connected both channels of an oscilloscope to the input and output of my circuit. I need ...
0
votes
2
answers
198
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 ...
- 177
0
votes
1
answer
234
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, ...
- 86
0
votes
3
answers
892
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 ...
- 65
1
vote
2
answers
2k
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
1
answer
758
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 ...
- 1,069
3
votes
3
answers
1k
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 ...
- 175
1
vote
3
answers
1k
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 ...
- 13
3
votes
2
answers
224
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 (...
- 22.6k
-4
votes
1
answer
315
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. ...
- 1
0
votes
1
answer
1k
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
3
answers
493
views
Op amp clipping well under voltage rails asymmetrically
I've been trying to figure out what looks like a clipping issue in the linked circuit.
Our input is a 8 kHz 120 mV sine voltage signal coming from an AD9850. We are trying to amplify it to a 5V signal....
- 63
3
votes
2
answers
255
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 ...
- 31
4
votes
1
answer
781
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 ...
- 41
0
votes
1
answer
1k
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 ...
- 1
-7
votes
2
answers
624
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)) ...
- 31