# Tagged Questions

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68 views

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 ...
76 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 ...
101 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 ...
100 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 \...
100 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 ...
279 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 ...
238 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 ...
154 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 ...
45 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 ...
213 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 ...
96 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: ...
180 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 ...
2k 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 ...
531 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 ...
818 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 ...
608 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, ...
202 views

### Need help with diode circuit

Could someone tell me if I've used the right approach for this problem? Assuming IDEAL DIODES: I am aware this is not a practical application and that it would not work in real life, but I just ...
9k views

### Solving Clipper Circuit containing battery and resistance in series

I have learned to solve clipper circuit with and with out battery in parallel to the output node. But have no idea what to do if a resistance also connected with it in series. There is nothing said ...
72 views

### Differential Voltage Range vs. Clipping Level

The data sheet for the AD835 analog multiplier mentions that its inputs have a "Differential Voltage Range" of ±1V and a "Differential Clipping Level" of at least ±1.2V (typ. ±1.4V). What is the ...
65 views

### The ouput Vo graph that is clipped

this is the circuit I am considering everything ideal. according to me it will clip the AC voltage from both cycles but the battery polarity of 15V with D2 is confusing me. According to me the ...
1k views

### How to design a unity gain with LM358 op amp?

I am trying to get a unity gain out of an LM358 to increase the current of an AC sine wave input from 5mA to something slightly higher. I thought I had it hooked up correctly for unity gain, but most ...
247 views

### TDA7231A seems to be clipping all the time

Final update: I got two more chips today and started experimenting with them. I tried both adding a 10 k resistor from C4 to the ground and the circuit in JIm Dearden's answer. His circuit helped a ...
555 views

### How to improve nasty form clipping behavior in differential input stage

The amplifier in the following schematic, when simulated, shows that it can cleanly amplify a signal with 0.1V amplitude to 10V. When driven with a larger signal, though, the behavior is very nasty in ...
405 views

### Reduce and clip voltage of a 5Mhz ultrasonic signal from +-50V to 0-3.3 V

I know there are a lot of posts similar to this one but some differences make it worth posting it. I’m working on a project where I have a 5MHz AC signal with the largest amplitude of +-50V. It’s an ...
329 views

### clamp low voltage signal

I have an audio sine signal -300mv to +300mv (600mv p-p), and I would like to read it using a microcontroller. I want to get rid of the negative half of the sine signal. How can I clip it? I do not ...
1k views

### Clip signal with very low threshold

I need to limit a signal to the following range: [-0.25V, 0.25V]. This signal is comming from a shunt resistor in series with a load with variable impedance on a <...
234 views

### Clamping Schottky Leakage Current

I'm trying to understand how the leakage current of D1 will affect the above circuit. From point A to point B I have a lengthy cable whose characteristic impedance is unknown. Because of the length of ...
I have a $V_{in}$ signal for which I cannot guaranty that it would have an upper limit. I want to clip this input signal to a limit (e.g.; 8.2V) with a circuit like above. Is this circuit alright?...