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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1answer
304 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 ...
2
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1answer
123 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
275 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
545 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
168 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
177 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
99 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 ...
5
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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
999 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 ...
1
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1answer
181 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
173 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
35 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
81 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
574 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
65 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
193 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 ...
2
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2answers
767 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
8k 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 ...
1
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1answer
267 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
125 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
96 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 ...
2
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3answers
583 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
198 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
64 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
113 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
475 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
666 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
295 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
432 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
166 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
847 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
218 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 ...
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2answers
2k views

Safe way connect a 3.3V output to an input with weak pullup to 5V

I plan to connect a 5V IC to a beaglebone black(explicitly not 5V tolerant 3.3V IOs). For signals going to the beaglebone black I need a level shifter. But the input of the 5V IC has a weak pullup ...
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2answers
4k views

Why should the output impedance of a current source be much greater than the input impedance of the load?

For a voltage source (except RF circuits), the output impedance of the source signal being coupled must be much smaller than the input impedance of the load. This is first of all done to prevent ...
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1answer
700 views

input current vs output current

My old/new laptop adapter specs as given below. I understand the output current for new is 4.5A which is OK when compared to old which provides 3.25A load since it can provide more load. However, ...
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4answers
462 views

Unstable input to trigger LED after 10-15 seconds (12 V)

I have a small excavator that, when fuel levels get low, the warning light flashes irregularly (due to movement of the machine) until it stays on as fuel level gets really low. It's very annoying and ...
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2answers
427 views

Determining output impedance for a pulse generator

I have a basic question about determining the output impedance of a circuit. Output of this circuit is through R6 in the Figure above. This will be an input for a data-acquisition hardware channel ...
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1answer
531 views

Connecting Multiple Sensors

I have 4 pairs of "LED + LDR" sensor. I need to be able to switch each of them on/off independently and take reading from the LDRs. To connect all of them to the microcontroller board, I would need 4 ...
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2answers
448 views

What is the effect of a varying Vcc on the output pin of an IC?

I'm designing a circuit with this transceiver. But I was wondering what the effect would be of an voltage source without a bypass capacitor, so with a possible varying Vcc. Would this affect the ...
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1answer
654 views

Positive Part of a stereo jack?

Ok, so I'm building a bass/treble cut switch for a guitar pedal and on the diagram that I'm following it shows an output switch with a + label on it. Which part of the jack is that ? Also, where is ...
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1answer
227 views

Power In does not Equal Power Out

I have the following setup: 480V, 200A service fed into PWM Drive, Drive output going to 1000kVA step up transformer (8.4 ratio) feeding a 2380V/53A 3phase induction motor. The motor is UNLOADED. ...
3
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1answer
601 views

Output of a D flipflop upon power up?

I guess the output state of a D-flipflop is unknown upon power up. But what are the chances that it is neither 0 nor 1 but an intermediate state such as VDD/2? The D-flipflop in this question has an ...
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2answers
102 views

Data received when earpiece connected to audio jack? [duplicate]

I'm still new to electronics and signals. I'm currently doing a project, and i have to detect the type of earpiece connected to an audio jack. So far, i found out that when you plug in your earphone/...
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1answer
113 views

Altera FPGA Pinout help [closed]

I recently bought an Altera FPGA Cyclone II board off of ebay, it says BAIXUN on the LCD display. It didnt come with any documentation. I'm trying to program the FPGA board but I have no idea what pin ...
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1answer
95 views

Why can some products take 110v 60hz and also 240v 50hz? [closed]

Most modern chargers can go into any output across the world. I believe this is because of low powered "Switch mode" technology it uses rather than transformers, like they used to. To go from high AC ...
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1answer
841 views

How to Shift the DC Level of Positive-going Op Amp Input Signal into the Negative Supply Region

I have a 1Vpp 1Hz repetitive arbitrary wave signal that resides entirely above the DC line. IOW there is no negative-going excursion. This is output from an LM358 inverting op amp buffer powered ...