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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4answers
298 views

Saving Oscilloscope Traces as Compressed Bitstream

I have been recording the output of a comparator by having its output (essentially a bit stream with 3.3V swing @ ~20 Mbps) terminating in an SMA connector, and connecting that to an oscilloscope (...
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2answers
1k views

What is symmetrical output voltage swing?

what does it mean by symmetrical output voltage swing (Amplifier)? Vcc = 10V. It is a basic, but i can't find any reasonable answer for this question. I am almost a beginner in electronics.
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1answer
101 views

Why is the LM386N-4 power rated @ 32Ω load, when the other variants are rated @ 8Ω? How can I find an appropriate speaker?

I'm trying to build an LM386 amplifier, but when looking at the datasheet to select the appropriate chip, I noticed the LM386N-4's power rating is based on a 32\$\Omega\$ load, while the -1 and -3 ...
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2answers
1k views

Why would a sensor output an inverted signal?

I have a sensor that has 3 components: X, Y and Z and for every component there are 2 channels: X+ :0 V ± 5 V voltage output X- :0 V ± 5 V voltage output inverted All I know is : If the circuit ...
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1answer
463 views

Microcontroller output pin to pull 12 volt signal low

I am working on a project at the moment which requires a microcontroller to pull a signal low for two seconds. This signal is from a break away board which will be connected to the microcontroller by ...
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2answers
2k views

Calculating boost converter maximum current output

I built a simple boost converter from junk parts to step a 9V battery up to around 100V so I can tinker with some neon bulbs. (Schematic below.) I didn't have any inductors in my parts bin, so I ...
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3answers
135 views

Electrical motors' properties regarding Stall torque

Is there's any way, or any type of electrical motor, that can have a Stall torque, meaning a torque produced while having its output rotational speed lowered or zero, without damaging the motor? like ...
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1answer
118 views

Microcontroller ADC and output impedance

I have seen the similar questions here: Required output impedance for ADC input? and Can someone help me understand output impedance to an ADC? but I couldn't apply the answers to my circuit - so I ...
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1answer
546 views

What does 'output current' mean (PIR motion sensor)?

I have a PIR motion sensor and looking at its specifications it lists the following: Voltage: 12V DC Standby current: < 3uA Output current: 5A I am unsure of the term 'output current.' If I'm ...
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4answers
18k views

How to calculate the output amperage of transformer

I am going to attempt to wind my own transformer, but I need to know the how to simply calculate the output amperage. I know how to calculate the voltage: ...
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2answers
877 views

What will be the result of a step input?

simulate this circuit – Schematic created using CircuitLab Assuming I'm giving a step input( from 0 to Vs) what could be the response? I analyzed it thus, but I'm not sure if my approach is ...
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1answer
356 views

Tvs diode selection for 3.3V output

Is it safe to use a TVS diode with StandOff voltage 3.3v on the output of a 3.3v regulator ?
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3answers
101 views

Sending 120VAC to a device for a certain amount of time after a single button press

I am trying to use a push button switch to send 120VAC for a certain amount of time after it has been pressed. I want it to only be pressed once, and not have to be held in the closed position. Is ...
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1answer
88 views

Measuring temperature using resistance termometer Pt100

Given: voltage source \$U_0\$ = 1.2 V \$R_i = 1000 \Omega\$ \$Pt_{100}\$ is described by \$\Delta\delta=T-T_0=0°C\$ with \$R_0 =100 \Omega\$ at \$0°C\$ \$R_1 = 500 \Omega, R_2 = 50 \Omega\$ Asked: ...
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1answer
348 views

What's the difference between all of these video inputs? [closed]

Over the years and with the large variety of hardware I've dealt with I've used quite a few of different video inputs and outputs. While I usually have no issue just plugging cables into devices, I ...
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1answer
128 views

Lowering the output of high amp current sensor for low amp use - good or bad?

By increasing the value of burden resistor or turning the wire several times around the CT an output can be increased. But is it a good practise to lower the high current non-invasive current sensor ...
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2answers
283 views

How do you determine voltage output with time graphically?

simulate this circuit – Schematic created using CircuitLab If the step input is to 2V (0 to 2V at t=0, step function) what will be the plot of output voltage be? I'm not able to proceed ...
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1answer
595 views

How does a Dual-Port Wall Charger distribute Amperage output?

I recently bought a Dual-Port Wall Charger that has a '3.4A total output'. Assuming the device(s) plugged in are individually capable of charging at 3.4A, is this specifying that a single device ...
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1answer
182 views

Connecting two different microcontroller outputs together to drive a single device?

I am interfacing with an existing product. This product uses a PIC16F54 uC and is ultimately driving a solenoid. This device is a black box to me and I have no input into the software running on the ...
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2answers
187 views

ATMega32u4 output power to input without external resistor?

I am new to electronics and have a SparkFun Pro Micro clone with an ATMEGA microcontroller. I wanted to know if I could set one pin to be an output that sends power to another pin that I have set as ...
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1answer
100 views

Altium diagram output for various clients

question regarding the usage of Altium 10 Detailed: 2 clients that have access to some project diagrams. They are both aware that others use them. However when they get the diagram they want their ...
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1answer
2k views

What to do with unused TTL and CMOS outputs?

Just about everything I've read on the Web, including on this site, say that unused TTL and CMOS outputs should be left floating. However, this TI article, Designing with Logic, states: Unused ...
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1answer
1k views

Will a 0.5V difference in output damage the device? [duplicate]

I have a speaker adapter, with an output rating of AC 11.5V ~ 1600mA, which I am looking to replace and the only replacement I can find has a rated output of 12V ~ 2000mA. I've read somewhere that a ...
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1answer
187 views

Read a common digital output from multiple digital inputs

I'd like to read a single digital output with two separate systems, each of which has a digital input. Both systems have a common ground. In principle, since the digital output is low-impedance and ...
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1answer
2k views

6 wire transformer

I have a transformer that is rather unusual. My issue is I have no Idea what wire does what. It is a 6 wire transformer. On one side we have one white and one back. On the other side we have one white,...
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1answer
184 views

Lock-in amplifier output to spectrum analyzer

In several lock-in amp tutorials and experiments (including at the end of “Physics 111: Low Light Signal Measurements” on Youtube), the lock-in amp X or Y output is applied directly to a spectrum ...
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1answer
36 views

wanting to know the equations for calculating the output of a generator that has a static input

There is a variable speed generator that is 100% efficient. It has a 2 ft. diameter pulley attached to its shaft. There is 100 ft. of cable attached to the pulley and a 1000 lb. "static" force ...
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3answers
9k views

How to enable Output pin to high by default in Arduino Uno?

In Arduino Uno, I noticed that when I set a PIN to output, the default initial state is low. Is there a way to set the initial output state to high? The pinmode documentation supports only input, ...
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1answer
90 views

no output on stereo [closed]

My stereo sometimes taking a break from playing on left channel. If I turn it off for a second and turn back on again it will play for less then a second and then will stop playing on left channel ...
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2answers
616 views

Hall effect output voltage

I have an omnipolar (2ssm) hall effect sensor which outputs 400mV when triggered by a magnetic field. Basically what I want to know is, is there a way to increase this output voltage to be able to ...
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1answer
66 views

Power at the differential output

I was measuring the voltage at the intermediate frequency output of this tuner http://superkuh.com/gnuradio/R820T_datasheet-Non_R-20111130_unlocked.pdf using the oscilloscope. The tuner has a ...
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1answer
195 views

Amplifier IC - selecting input (Sound Card/Phone jack) and output(Headphones/RCA)

Good evening guys! I'm trying to figure out the solution to my problem, that I have encountered, but I just can't find anything close. So, first of all, the situation: I'm trying to build a 5.1 ...
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2answers
841 views

Wiring 2 audio output transfomer secondaries in series or parallel

I want to know if wiring 2 audio output secondaries in series is doable. See problems with this schem? Would parallel be a viable alternative?
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2answers
9k views

What does mean a rail to rail output opAmp?

Context : have a very similar problem to the one exposed here, and in the best rated answer (by Olin Lathrop), he says we need a rail to rail output opamp. My question : What is rail to rail opamp ?...
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0answers
77 views

P-Ch high side switch output drop?

I am making a cutoff switch for a SLA battery using the this circuit V2 is the SLA battery, V5 is 0V or 5V coming from a some other logic circuitry. The simulation comes out fine. I understand that ...
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1answer
290 views

How to connect 2 different power supplies together

I have a power supply that provide the following outputs (+&-15V) & (+&-10V) sadly this power supply is obsolete so I have to get those voltages from two separate power supplies one that ...
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2answers
127 views

Impulse Response of a circuit

The following periodic function, \$x(t)\$, is the input to a linear, time-invariant system The impulse response of this system is $$h(t) = \frac{\sin t}{t} $$ which I converted to $$H(\mathrm{i}\...
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2answers
98 views

Impulse Response of a LTI system

The input to a L.T.I. circuit is \$x(t) = 6\cos(t)\cos(3t)\$, and the impulse response of the circuit is $$h(t) = \frac{\sin(3t)}{3t}$$ Obtain an explicit expression for the output y(t) as a function ...
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3answers
643 views

Updating Multiple Ports on 8bit AVR in Single Cycle

On the 8bit Atmel AVR MCUS (specifically mega and xmega series), is it possible to simultaneously modify multiple ports in a single instruction cycle? For example, I have a 512kB RAM chip which ...
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1answer
201 views

Choosing output capacitor for power converting

In general, what is the best practice (mathematically) to choose an output capacitor for a boost or a buck converter? In other words, could someone walk me through the design/decision making process ...
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2answers
68 views

How does an output current splits between two loads?

In this project a buck-boost IC outputs 5V @ 1.8A MAX. That OUTPUT can power two things simultaneously: Charging a device through USB port Power the project's control board How can I be sure that ...
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2answers
114 views

Best way to implement outputs pins with leds in a parallel way

What is the best way to implement an output but with also a led, so I can use the output for other purpose (for example a GPIO for a PIC, or a lot of logic gates) but with a led indicador that the ...
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2answers
498 views

5v hydro power generator produces almost 12v

I have this hydropower generator. At its specs it says that it would produce a 5v voltage. So when I have installed this to my water system, and measure it using a tester it says that it produces ...
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2answers
695 views

Updating outputs in PLCs

For all PLC manufacturers, is Mass I/O copying the choice for updating outputs? I found that there is another possible method: the continuous I/O updating. Can anyone tell me what is the reason for ...
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1answer
298 views

FPGA design rules - Using a Module Output Register Value Internaly

I'm trying to optimize a verilog code and I found something that I don't feel it's correct. I found a module that has an output and it's using that output value as a condition in a case statement. ...
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4answers
482 views

How to increase number of micro-controller inputs?

I have relatively little experience with electronics, but do have a basic understanding. I am attempting to build a measuring device, which will measure 100 points in 0.1 seconds. These will all ...
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2answers
167 views

Generic question about interfacing a microcontroller with a device: when is the current limit a problem?

I have an Arduino Board, to be precise many models, but let say I want to interface a ATmega328p with another integrated circuit (all is running at 3.3 V). In this case I want to connect Arduino with ...
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2answers
897 views

A protecting circuit using GPIO of the BeagleBone (Black or Green)

I'm really trying to develop a cape since I need to use 7-8 GPIO-Pins of my BBB Green and Black as Output. I'm too afraid to destroy the board somehow, so I was thinking to implement a solution which ...
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2answers
235 views

Same pin as output and input

In the 7447 BCD to 7-segment decoder chip, pin 4 is BI'/RBO'. That pin acts both as input and output. I would like to understand how exactly the internal circuitry works to make this possible. On page ...
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2answers
2k views

How to understand dynamic range of op amp from TI's book

I am reading TI's op amps for everyone. I am very confused about its description about dynamic range as follows I have some questions about it, Since it is the maximum output voltage the op amp ...