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

learn more… | top users | synonyms

0
votes
0answers
46 views

Analog and Digital Output protection?

I know it's important to protect analog and digital inputs. My question is should you also protect outputs, both analog and digital? For the inputs, right now I'm using clamping diodes, an MOV, a ...
1
vote
1answer
37 views

How to calculate theoretically Output Impedance of a Linear Voltage Regulator

I am trying to calculate the output impedance of the following circuit, a linear voltage regulator. What is confusing me is the feedback coming from R1 and R2. I used R4= 500 ohms, R3 = 1K , R1= 25k ...
1
vote
3answers
80 views

Calculated output is greater than the op amp can produce?

I had to analyze a differentiator and integrator op amp. I am now asked the question of what would happen if the calculated output is greater than the op amp can produce? I am given a hint that it is ...
0
votes
1answer
30 views

Output Pin of Burleigh PZ-150 Amplifier Driver Analog High-Voltage Power Supply Unit

I have found a Burleigh PZ-150F Analog Amplifier Driver. However I could not locate the manual. What connector cables are compatible with the output port of this amplifier? It seems there are two male ...
2
votes
1answer
67 views

Transfer function of a real opamp circuit

I know how to calculate the transfer function of an ideal opamp. But when calculating for a real opamp, should I use the Input Bias Current values specified in the ...
0
votes
2answers
77 views

Convert perpetual magnet motor output to 5 volt DC

Disclaimer: Hi, I was in the neighborhood (StackOverFlow) and just noticed this cool site. I have had this general wondering for a while now and I am not sure if my question is constructive enough for ...
0
votes
0answers
66 views

1 Mbps satellite channel with a 270 ms delay

Consider 500 byte frames sends on a satellite channel with a 270 ms delay on send an receive by 1 Mbps rate. by ignore the length of ACK message and using Slide Window technique, how many bits need ...
0
votes
0answers
40 views

Linear time invariant system transfer function is known - calculate output signal

Here is my task: a) Calculate and sketch amplitude spectrum of u(t), b) u(t) is input signal for linear time invariant system whose transfer function H(jw) is shown. Calculate output signal uo(t) ...
0
votes
1answer
77 views

Recognising output impedance of an amplifier though inspection

The output impedance of FET amplifiers seem to be a hit and miss affair when I try to find it just through inspection. For example, sometimes it's easy to predict, whereas some other times I have to ...
-1
votes
1answer
77 views

Input 5V 100mA, output 200mA

I am new to electronics. I have come across a problem which I face. Will need some advice from here, as I am a student and would like to know: is there any way I can increase current in a circle. ...
1
vote
1answer
138 views

Calculating the Output Resistance of a Widlar Current Source

I'm currently struggling to understand the small signal equivalent used in the following calculation: http://en.wikipedia.org/wiki/Widlar_current_source#Output_impedance My problem is: How come they ...
1
vote
1answer
42 views

Output impedance of a differential line receiver

Let's say I have an INA134 (http://www.ti.com/product/ina134) from Texas Instruments in my design. I want to take the output of that IC and feed it into a resistor network which can have a flexible ...
1
vote
0answers
54 views

Arbitrary difference between the output of multiple op-amps

We recently created a circuit where we were testing the voltage drops in a mesh network of resistors. We wanted to be able to apply arbitrary voltages between different nodes in the mesh network. ...
0
votes
2answers
58 views

Comparator Output Swing Measurement

i wan't to measure the maximum and minimum output swing of a Comparator. I'm using the circuit which you can find attached. However, since the Output of the Comparator (TI LM2903) is open drain, I ...
2
votes
4answers
162 views

Why do they usually make comparators open collector?

I never see open collector opamps while I frequently see open collector comparators. What is reason for preferring open collector output in comparators? (Inside of LM193.)
0
votes
0answers
44 views

Crystal Oscillator output voltages and power

I have built the crystal oscillator stage to the Pixie 2, a Hartley oscillator, with a 9 volt voltage source. I measured the output with my VOM set to AC 30 volts. It read almost 30 volts. That is ...
0
votes
2answers
126 views

Maximum op-amp output current

Im looking to drive an LED, but am not sure if i should use an op-amp or bjt configured as a switch. Is it possible for an op-amp to source roughly 10mA; the current needed to drive an LED in series ...
4
votes
2answers
119 views

Understanding resistors on inputs/outputs of op amps

I was looking at the schematic for Dave Jones' uCurrent, and I can't seem to make sense of why there are 270 ohm resistors on the inputs and outputs of the op amps in his circuit. The resistance is ...
2
votes
1answer
118 views

Differential pair output to voltage amplifier transistor

When designing an amplifier stage, like this, how does it work in a linear fashion? Suppose you're applying some feedback, the output may well be stabilized to zero, but the more "wrong" \$R_C\$ is ...
3
votes
1answer
504 views

Understanding this statement in ATmega328P's datasheet

While reading ATmega328P's datasheet, I came across the following statement. The Port X output buffers have symmetrical drive characteristics with both high sink and source capability. What does ...
0
votes
3answers
156 views

Will a dual car charger that shows a maximum output of 2000mA produce a 2.1A current?

I have a dual car charger that states input is 12-24VDC and Output is maximum of 2000mA, but it is supposed to have one port charge at 1A and other port charge at 2.1A. Is the 2.1A output possible ...
0
votes
2answers
107 views

Power Supply Current is very low

I made a power supply from a diy site, the schematics are above. The site showed the project as 2amps output but I'm not getting even close to that. I'm getting around .14A or less. Does anyone know ...
0
votes
2answers
47 views

the response of wireless channel to an input

I am reading the wireless of David Tse. In the 2nd chapter of this book there is a discussion about the response of the channel due to an input. It has said that since the channel is linear its output ...
0
votes
1answer
50 views

Capacitive load at the output for analysis of CMOS cells

This question is very rudimentary one. Please point me to the link if this question has been already asked. In general, when working with simulations and and analyzing the standard cells designed ...
0
votes
1answer
44 views

Operating a pump wit a PIR sensor

I need help with something I'm building because I've hit a dead end. I need this PIR sensor. To activate this pump off a 9v battery. The problem is the power output from the sensor isn't enough ...
1
vote
2answers
53 views

Expression and gate not gate output

The expression I came up with this circuit is A'B + A'CD + C, would the output change to AB' + AC'D' + C' since it is inverted? I'm assuming the D input compliments and cancels out? What would the ...
-2
votes
2answers
108 views

Understanding circuit : Output of a CD4017 with 1N4148 diode and RC circuit

I'm reading a circuit on a magazine (look at circuit below) and i don't understand , why the author put a 1N4148 diode and a RC circuit at the output of CD4017 , what is the operations of the RC ...
2
votes
3answers
243 views

What kind of metal are the legs of resistors made from?

Can anyone tell me what kind of metal is used in electronics to make wires going in/out to the elements? Can longer of this metal wire be found anywhere? Actually I am looking for sth like copper wire ...
2
votes
1answer
121 views

12F683 output not behaving as expected

I have a 12F683 micro and this is my first program using the new MPLAB with XC8 compiler. I have configured Timer1 to trigger about every ms. For now I would need an LED to flash on and off but need ...
1
vote
1answer
267 views

CD4094BE Arduino problems

I'm trying to build a circuit which uses three 4094's to give me enough outputs to drive a number of LED's. I've built a few similar circuits before in the past using the same code and schematic, but ...
1
vote
5answers
221 views

Emulating a switch with open drain outputs

I need to replace mechanical switches with some kind of digital switch. Specifically I want to sent control inputs to various arcade games that use standard JAMMA inputs, which are basically switches ...
1
vote
1answer
238 views

Are disconnected PV panels damaged when exposed to sunlight?

Can PV solar panels be exposed to sun without being connected to controller and batteries? Have fixed panels on RV, and would like ability to switch (at controller input) to moveable panels on ground ...
1
vote
1answer
66 views

giving output bits of counter to logical gates in system generator

I have a counter block in system generator which has a 3 bit output. The block is shown below: As is apparent from the figure, it's output is represented by a single line not three. I need to give ...
1
vote
2answers
71 views

Need an extra pin to control my driver board

I've been searching for a way to add an extra pin to a driver board. The MCU board that i'm using only has 8 pins on the left side and i'm already using all of them. 2 are for powering the driver and ...
1
vote
4answers
71 views

Arduino Uno pin response speed

We are attempting to build a coilgun with multiple coils, and each coil needs to be energized and deenergized at precise time intervals. For cost (and inexperience) reasons, we are considering using ...
0
votes
1answer
47 views

Inverter not showing the right output in HSPICE

This is the code snippet apart from the usual headers in the rest of the file: ...
2
votes
2answers
185 views

Solenoid stays on when output turned off

I have a power supply with 12V running into a the common on my PLC. Output 0 on the PLC is wired into a solenoid. The negative on the solenoid runs into the ground on the power supply completing the ...
1
vote
0answers
113 views

How to get immediate state of DYP-ME003DD PIR sensor?

I am trying to detect movement for a project and have a DYP-ME003DD PIR sensor. It has 4 pins, +,-,CDS (I think this is what it says, it's hard to read) & OUT. When I connect it to my arduino and ...
0
votes
1answer
174 views

Lightning Connector Power Output rating/ Apple Policy

I am currently in the process of developing an external antenna for smartphones, so the answer of the following question(s) pertains to the feasibility of this product. What is the line level output ...
1
vote
1answer
264 views

What is each pin's output voltage of an ATmega328P?

I would like to operate an ATmega328P in 3.3V supply alongside some other 3.3V non-5V-tolerant-peripherals. I looked up in the datasheet but I couldn't find an answer as to what is the output voltage ...
0
votes
1answer
70 views

How to put a battery and battery charger parallel in a circuit

I am making a speaker that runs at 3-5.5 RMS and I need a battery to supply power to it and so I got a house phone battery pack with a diode now I need a way to charge this so when it is charging that ...
0
votes
1answer
129 views

Analogic pin 0 (pin 14) problem UNO board

I have an Arduino Project developped for an UNO Arduino Board; the sketch have a size of 30000 bytes aprox. The whole set of features requeried works perfectly, but I have a problem with the A0 pin ...
1
vote
1answer
100 views

VGA switch 3 in 1 out [closed]

My team and I are going on a software development competition in 1 week. We will demonstrate the software on multiple laptops, but we have only one projector. So we need to be quickly able to switch ...
5
votes
2answers
256 views

Rail-to-rail oscillations in subtractor op amp circuit

simulate this circuit – Schematic created using CircuitLab Just bumped into a problem. When I am trying to make a voltage subtractor based on AD8055 op Amplifier, I get rail-to-rail ...
1
vote
1answer
168 views

Output table equivalent to state diagram?

I have the following state diagram to which I am supposed to construct an output table for. I have the answer, but I do not understand how they derived this output table? If someone could explain one ...
1
vote
2answers
107 views

Speaker level to line level

I want to reduce my apmlifier output to line-level. I found this tutorial which is compatible with 50Watts output power. There is also mentioned what to do if amplifier is more powerful than that. So ...
0
votes
2answers
73 views

Random timed output circuit [closed]

I am in need of some help with a project. I am trying to build a circuit that will turn on three LEDs randomly on a 1-5second cycle. I have the basic when it comes to electronics, but get stuck on ...
2
votes
2answers
165 views

How does a NOT gate bypass the output?

I have found the basic tutorials on gates and the way they work. However, I'm not understanding conceptually how a NOT gate, when activated, bypasses the output. Circuit as follows: simulate ...
2
votes
1answer
102 views

Voltage at output pin of a controller

I would like to ask a simple question. I do have controller whose pins are configured were configured as o/p. The controller runs at 3.3v and it's from the Pic18f family of controllers.Why is it that ...
2
votes
1answer
123 views

Help me find DAC Output function

Please help me find the output function, with \$V_{REF}\$ as reference, and \$b_5-b_0\$ as the digital input for this circuit (1): I'm kinda confused with this Series capacitor that's splitting the ...