Questions tagged [output]

A signal or power being generated by one system for consumption by another, or a connection for that purpose.

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63 views

How can this circuit be best described?

Here, the green waveform is the input waveform(V1) and the blue waveform is the potential drop across Vc1 and Vc2. To me it seems like a peak detector getting clamped, but then the first half cycle ...
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1answer
58 views

What is this circuit with increasing voltage of full rectified wave?

{ The first image is original circuit.} { The second image is the output across RL resistor with ac source amplitude voltage 5V. } {Simulated circuit with output measured between A and B nodes.} To me ...
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177 views

Op-amp as an inverting amplifier with diode on OUT, circuit close to precision rectifier

I am wondering which kind of circuit is that and what is does when +-Vin is applied on the input. The output of the circuit is cathode of D26/R30/C52 node. Thank you.
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230 views

Why is the output impedance of a non-inverting op amp zero? [closed]

Also is it actually zero or just very low?
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1answer
36 views

Differential signalling with negative feedback

Does differential signalling always comes hand to hand with a negative feedback circuit?Else the 1s and 0s would be the same!because if we have ground in the inverting pin then the output voltage will ...
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1answer
184 views

OP Amp controlling a Power Mosfet

let me say that I have a 40 Years+ experience in digital electronics (I worked for Sperry Univac) but my knowledge of basic analog electronics is almost zero, so I beg you pardon for may possibly ...
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1answer
70 views

Why isn't high side digital output stable?

Our Advanced Drive Assist Systems(ADAS) project is based on Renesas RH850/U2A16 microcontroller. We are using Infineon Technologies TLE75620-EST, SPI Driver for Enhanced Relay Control IC for driving ...
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2answers
97 views

Connect 16 outputs to as few pins as possible on a microcontroller

I would like to control 48 outputs from a microcontroller, with individual access to each of them. But let's focus on 16 outputs. My initial solution involved a 1:16 demultiplexer and 16 (actually 8 ...
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88 views

Push pull output stage max output voltage

Spent a day trying to understand the maximum and minimum output voltage of the basic circuits as shown in this figure The problem is that I have come across different expressions for the output ...
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1answer
57 views

What happens to the output if ADJ pin of a linear regulator is grounded?

I am trying to understand the output voltage of a circuit made using LT3014 LDO regulator. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/3014fd.pdf The circuit is ...
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2answers
47 views

What affects a microcontroller IO's VOH_min and VOL_max?

What affects VOH_min and VOL_max? Is it just the current being sourced/sunk by the pin? Or are there manufacturing variances or temperature effects etc that can swing the output voltage away from ...
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22 views

Timer not having output after initial powering

DGM TIMER RELAY BOARD 12V 1S-1HR Time Delay ON or OFF 12V Relay Board with jumper settings and 8 Time Ranges selectable from 0.1s up to 1 hour accessing loads 250VAC 10A or 30VDC 10A I believed this ...
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1answer
78 views

Why does Basler GPIO need to have an external powersource + resistor to its GPIO output

Background We are usingzBasler camera with an output trigger. The camera output gpio is 3....
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34 views
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67 views

Output Stage Stability

I've been reading over amplifier output stage design and hoped someone might be able to advise if my circuit has any fundamental flaws - or if there are any tweaks I should make that would bring ...
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1answer
70 views

What to do with GND of differential mode signals?

Let us say I have 2 modules. First module gives a differential signal output on a pair of wires while the second module takes the differential signal input. When I connect the differential signal ...
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496 views

Proximity IR Sensor Circuit using TSOP VS1838 output problem

I am assembling a proximity IR Sensor using TSOP instead of Photodiode. I followed the diagram below. When I tested the circuit, and put my hand close to the IR LED. The receiver receives the signal ...
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1answer
83 views

89 Hz Wien bridge oscillator output signal does not appear

The circuit is designed to generate 89 Hz, but in this case, the sine wave does not appear.
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1answer
67 views

Push on long push off button circuit

I want to design something like this: There is a button, an input pin, an output pin, a voltage input, and a voltage output. If the button is pressed once while the device is off, it won't do anything....
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1answer
76 views

9V and 12V adaptors - bad output [closed]

I have a couple 9V and 12V adapters ranging from 1A to 5A. When I plug any one of them in, it produces accurate voltage but the current oscillates between 0A and anything upto maximum current and then ...
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2answers
78 views

Electric circuit which flips voltage

Is there an electric circuit which flips voltage? For instance if the input is Vi>0V then the output will be 0V and if the input is 0V then the output is >0V. And i am not reffering to the NOT ...
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0answers
83 views

Why does customer see high voltage on my PNP sensor output?

I have designed a capacitive sensor with a PNP output. The output stage is a Sziklai pair, as follows: simulate this circuit – Schematic created using CircuitLab While the circuit works OK, one ...
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1answer
24 views

Linear electrical network

Is zero input zero output test of an electrical network is necessary and sufficient condition for network to be linear i.e for example if I have electrical network of N-port and I measure current and ...
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0answers
54 views

op amp - current source - voltage output

I have the electronic schematic bellow composed with two op amp and I want to determine the voltage output of the X2 op Amp. I m a little bit confusing about the aim of using the zener diode D1 in ...
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1answer
642 views

How can I convert analog voltage to PWM converter just by changing the input voltage [duplicate]

Which is used to convert analog input signal to PWM output. How can I vary the output with the input? How I can vary duty cycle?
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1answer
38 views

Connecting loads to an MCP23S17 GPIO outputs

I would like to connect various MCP23S17 datasheet devices to the Raspberry Pi3 MB SPI port. But first I would like to start making some test with a single connection: only one chip. After this I will ...
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1answer
128 views

I can't get the desired output voltage

This is a simulation of a buck boost converter. I want to get -12V as the output voltage , but I get -1.148V. I checked the PWM and the duty cycle and it is right. I think that my problem in ...
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1answer
60 views

Use one GPIO output to set two inputs to opposite states (low and high)

This is all still very new to me so apologies if this is a silly question. I have two LDO voltage regulators, each of the ENable pins are different, to enable them one ENable pin must be LOW and the ...
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2answers
97 views

Calculating voltage output from a circuit with capacitors

The question is outlined in the image below. I am having trouble solving this problem. If at all possible would one of you please provide the solution. Thank you
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717 views

Can every logic ic output be connected directly to ground or Vcc in any case?

One day, someone here, I forgot who, wrote: "On modern ic's, every input and output pin can be connected directly to either ground or Vcc." Talking about ologic ic's. Is it true? And is true all the ...
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2answers
219 views

Step up converter

I built a circuit of boost converter and my input voltages is 6-9 V. I want to get output at the converter 9-12 V. My problem is that I get over 40 V and I do not know why, in the code do I have to ...
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3answers
72 views

How do I power many devices off of a low voltage microcontroller?

I'm new to electronics. I have a GENIE 08 microcontroller, and I want to control multiple LEDs from one pin, and a few buzzers from another, and an LCD from one too. I am worried that the power ...
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3answers
52 views

Reasons for constraining single-ended Op-Amp VCC when multiple power rails available

If I am utilising an op-amp, say a LM321/LM324, say in single-supply operation as a buffer and have a multiple suitable power rails available then are there, assuming I do not expect to utilise the ...
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1answer
57 views

Do I have to protect the CD4013 outputs from short circuits?

I'm trying to determine whether a CD4013BE ("CMOS Dual D-Type Flip Flop") can take damange if one of the outputs (Q or Q-bar) is set to high, but shortened to ground (or vice versa) with no resistor ...
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1answer
107 views

Amplitude influence in the output signal in inverting op-amp

I testing an inverting op amp circuit in LTspice. First I observed the graphic for the gain, and calculted the bandwidth of the circuit that is 11995Hz. Then I did a simulation at that frequency, and ...
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1answer
29 views

Is this the correct circuit for a Sourcing Digital Output

My objective is simple: Let the user connect any reasonable voltage to SOURCE0 (3.3-48V) and get that voltage at OUTPUT0 when BACKUP0 goes high from my MCU (3.3V signal) I've seen some examples ...
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1answer
127 views

LDO maximum output current during short circuit

I am using this IC - LIN Mini system basis chip - TJA1128 Using the LDO in that IC to generate 3.3V with 50mA of load current. I see that the maximum output current capability of the IC is 85mA. ...
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1answer
93 views

DC voltage at the output of push pull stage

I have an output stage. The circuit diagram is as shown: In DC condition, the node X has a DC voltage of Vdd/2. The node Z has a voltage of about 1.26 volts. Vdd = 3.3 volts. Transistors M7 and M5 ...
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32 views

Output resistance of CE amplifier small signal model

I was studying input/output impedance of CE amplifier small signal model and I wanted to know why the output impedance (looking from the collector) is just Rc in parallel with dynamic output ...
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1answer
95 views

Is it dangerous to connect an IC output directly to GND?

Is it dangerous to connect an IC output directly to GND while there is a risk this output can be high? BUF1 is the 74LVC2G125DC dual buffer. datasheet here. But my question could also apply more ...
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2answers
33 views

Changing selection lines in a mutiplexer [closed]

We have a 4*1 multiplexer. So it will have two selection lines, AB. Now what if we built the same multiplexer but with BA as selection lines. Would the output change? If it did how would it?
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3answers
448 views

SMPS Input/Output ripple current and ripple voltage

I found a presentation regarding SMPS and found this slide. I am not totally able to grasp the concept of the input and output ripple current. In the above image I have the following questions : I ...
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1answer
75 views

How to generate desired voltage signal in a circuit?

What I am asking is a design or pulse shaping question. We learn about analyzing circuits but not designing them in school. Let's say I have an input signal which is a triangular wave and I want ...
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0answers
77 views

TPS54260 DC-DC Buck Regulator BOOT and PH pin voltage drop

I am using TPS54260 Buck converter which steps down 16V to 5V output. Load current is 600mA max. To the inrush current through the output inductor, I did some rework. But after some rework, my 5V ...
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2answers
203 views

How to make a sawtooth waveform look less like a staircase (DAC)?

I am making a 4-bit digital-analogue converter using an adder circuit with four inputs. Each input is a square wave of a specific frequency. The output of the DAC is meant to be a sawtooth waveform ...
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1answer
321 views

Capacitor on sensor output purpose

I'm currently using a demo-board from sparkfun for quick prototyping of a hall-effect sensor application. The specific chip I'm using is the ACS723-5AB, a Hall-Effect sensor that can measure between -...
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3answers
42 views

Output drop/change in linear circuits

Lets say I have a linear circuit with some input and output voltages. Assume this is a block with inputs/outputs. When I connect input of another block to the output of my first block, I observe that ...
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1answer
149 views

What is the output in Figure 3-19(a) if the input voltage is increased to a peak value of 20 v?

Will it be the same as if the input voltage is still 10 V? Or the zener diodes will breakdown (get damaged)?
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1answer
443 views

What is Hang Input in Logic Design?

When it comes in Digital Logic Design using IC (Integrated-Circuit) what is the term HANG Input means? what does it do? and how will it affect the output of the IC?
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1answer
59 views

Fourierspectrum of the output voltage of an real inverting amplifier

First a quick descripton of my circuit: The inverting amplifier amplifies by 20dB, the input voltage is a sinus signal with the Frequency 10 kHz and the peak to peak voltage is 200mV or 10V. The used ...

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