What will be the real voltage along the line with a voltage source and a capacitor?Capacitor discharge and 1/2 terminal voltage sourcesSource voltage in discharging capacitor equationCan capacitor charge to higher voltage than source provides?What happens with voltage phase on the resistor and capacitor in AC circuit?If there is a branch and the two paths lead back to the same ground, will they both recieve power?What sets the source voltage in this simple CMOS circuit if the current source is 0A?Why doesn't an RC circuit change the shape of an input sine?Source voltage and capacitanceWhy this point in this schematic will begin at 2V at 0ms?Capacitor in series with voltage divider
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What will be the real voltage along the line with a voltage source and a capacitor?
Capacitor discharge and 1/2 terminal voltage sourcesSource voltage in discharging capacitor equationCan capacitor charge to higher voltage than source provides?What happens with voltage phase on the resistor and capacitor in AC circuit?If there is a branch and the two paths lead back to the same ground, will they both recieve power?What sets the source voltage in this simple CMOS circuit if the current source is 0A?Why doesn't an RC circuit change the shape of an input sine?Source voltage and capacitanceWhy this point in this schematic will begin at 2V at 0ms?Capacitor in series with voltage divider
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
$begingroup$
Take the following circuit:
If I do a simulation of this circuit I get this graph:
The strange thing is that in the simulator it gives the same voltage sine wave in the circuit, near the voltage source and near the capacitor.
In real circuit is it the same? Even if the wire is long between the voltage source and the capacitor?
voltage capacitor circuit-analysis decoupling-capacitor timing-analysis
edited May 25 at 14:01
JRE
26.1k64886
asked May 25 at 13:24
Nmaster88Nmaster88
438
$endgroup$
add a comment |
$begingroup$
Take the following circuit:
If I do a simulation of this circuit I get this graph:
The strange thing is that in the simulator it gives the same voltage sine wave in the circuit, near the voltage source and near the capacitor.
In real circuit is it the same? Even if the wire is long between the voltage source and the capacitor?
voltage capacitor circuit-analysis decoupling-capacitor timing-analysis
edited May 25 at 14:01
JRE
26.1k64886
asked May 25 at 13:24
Nmaster88Nmaster88
438
$endgroup$
1
$begingroup$
Real wires have inductance, capacitance, and resistance that you haven't modelled here.
$endgroup$
– Hearth
May 25 at 13:28
$begingroup$
but for the vlaues you used, these will most certainly not ever play a role. How can you do a spice simulation without having thought about what a connection in a schematic means? It just literally means "these two points are somehow connected. We model this connection to be loss- and lengthless", Nmaster88.
$endgroup$
– Marcus Müller
May 25 at 13:29
add a comment |
$begingroup$
Take the following circuit:
If I do a simulation of this circuit I get this graph:
The strange thing is that in the simulator it gives the same voltage sine wave in the circuit, near the voltage source and near the capacitor.
In real circuit is it the same? Even if the wire is long between the voltage source and the capacitor?
voltage capacitor circuit-analysis decoupling-capacitor timing-analysis
edited May 25 at 14:01
JRE
26.1k64886
asked May 25 at 13:24
Nmaster88Nmaster88
438
$endgroup$
Take the following circuit:
If I do a simulation of this circuit I get this graph:
The strange thing is that in the simulator it gives the same voltage sine wave in the circuit, near the voltage source and near the capacitor.
In real circuit is it the same? Even if the wire is long between the voltage source and the capacitor?
voltage capacitor circuit-analysis decoupling-capacitor timing-analysis
voltage capacitor circuit-analysis decoupling-capacitor timing-analysis
edited May 25 at 14:01
JRE
26.1k64886
asked May 25 at 13:24
Nmaster88Nmaster88
438
edited May 25 at 14:01
JRE
26.1k64886
asked May 25 at 13:24
Nmaster88Nmaster88
438
edited May 25 at 14:01
JRE
26.1k64886
edited May 25 at 14:01
JRE
26.1k64886
edited May 25 at 14:01
JRE
26.1k64886
26.1k64886
asked May 25 at 13:24
Nmaster88Nmaster88
438
asked May 25 at 13:24
Nmaster88Nmaster88
438
asked May 25 at 13:24
Nmaster88Nmaster88
438
438
1
$begingroup$
Real wires have inductance, capacitance, and resistance that you haven't modelled here.
$endgroup$
– Hearth
May 25 at 13:28
$begingroup$
but for the vlaues you used, these will most certainly not ever play a role. How can you do a spice simulation without having thought about what a connection in a schematic means? It just literally means "these two points are somehow connected. We model this connection to be loss- and lengthless", Nmaster88.
$endgroup$
– Marcus Müller
May 25 at 13:29
add a comment |
1
$begingroup$
Real wires have inductance, capacitance, and resistance that you haven't modelled here.
$endgroup$
– Hearth
May 25 at 13:28
$begingroup$
but for the vlaues you used, these will most certainly not ever play a role. How can you do a spice simulation without having thought about what a connection in a schematic means? It just literally means "these two points are somehow connected. We model this connection to be loss- and lengthless", Nmaster88.
$endgroup$
– Marcus Müller
May 25 at 13:29
1
1
$begingroup$
Real wires have inductance, capacitance, and resistance that you haven't modelled here.
$endgroup$
– Hearth
May 25 at 13:28
$begingroup$
Real wires have inductance, capacitance, and resistance that you haven't modelled here.
$endgroup$
– Hearth
May 25 at 13:28
$begingroup$
but for the vlaues you used, these will most certainly not ever play a role. How can you do a spice simulation without having thought about what a connection in a schematic means? It just literally means "these two points are somehow connected. We model this connection to be loss- and lengthless", Nmaster88.
$endgroup$
– Marcus Müller
May 25 at 13:29
$begingroup$
but for the vlaues you used, these will most certainly not ever play a role. How can you do a spice simulation without having thought about what a connection in a schematic means? It just literally means "these two points are somehow connected. We model this connection to be loss- and lengthless", Nmaster88.
$endgroup$
– Marcus Müller
May 25 at 13:29
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
What looks like a 'line' running from your voltage source, past your resistors, to your capacitor isn't. It's a NODE. The simulator models it as a single connection point, with a single voltage. You could redraw that circuit by changing the order of the components, making that line wiggly or very long, and the simulator will treat it in exactly the same way.
If you want to describe a physical conductor, perhaps 1m of copper wire 1mm2 area, then as a first order approximation, valid for DC, you can model that as a series resistor of 0.017ohms.
If you want better (more realistic, matching what real wires do at higher frequencies) models, then adding some series inductance, or using a transmission line of a suitable impedance would be the things to do.
We always try to use the simplest model that describes what we need describing, and nothing more.
answered May 25 at 13:39
Neil_UKNeil_UK
81.5k285188
$endgroup$
$begingroup$
Yes I think this is what I'm looking for, I will do a model that has some series resistance and inductance.
$endgroup$
– Nmaster88
May 25 at 18:43
add a comment |
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1 Answer
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active
oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
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votes
$begingroup$
What looks like a 'line' running from your voltage source, past your resistors, to your capacitor isn't. It's a NODE. The simulator models it as a single connection point, with a single voltage. You could redraw that circuit by changing the order of the components, making that line wiggly or very long, and the simulator will treat it in exactly the same way.
If you want to describe a physical conductor, perhaps 1m of copper wire 1mm2 area, then as a first order approximation, valid for DC, you can model that as a series resistor of 0.017ohms.
If you want better (more realistic, matching what real wires do at higher frequencies) models, then adding some series inductance, or using a transmission line of a suitable impedance would be the things to do.
We always try to use the simplest model that describes what we need describing, and nothing more.
answered May 25 at 13:39
Neil_UKNeil_UK
81.5k285188
$endgroup$
$begingroup$
Yes I think this is what I'm looking for, I will do a model that has some series resistance and inductance.
$endgroup$
– Nmaster88
May 25 at 18:43
add a comment |
$begingroup$
What looks like a 'line' running from your voltage source, past your resistors, to your capacitor isn't. It's a NODE. The simulator models it as a single connection point, with a single voltage. You could redraw that circuit by changing the order of the components, making that line wiggly or very long, and the simulator will treat it in exactly the same way.
If you want to describe a physical conductor, perhaps 1m of copper wire 1mm2 area, then as a first order approximation, valid for DC, you can model that as a series resistor of 0.017ohms.
If you want better (more realistic, matching what real wires do at higher frequencies) models, then adding some series inductance, or using a transmission line of a suitable impedance would be the things to do.
We always try to use the simplest model that describes what we need describing, and nothing more.
answered May 25 at 13:39
Neil_UKNeil_UK
81.5k285188
$endgroup$
$begingroup$
Yes I think this is what I'm looking for, I will do a model that has some series resistance and inductance.
$endgroup$
– Nmaster88
May 25 at 18:43
add a comment |
$begingroup$
What looks like a 'line' running from your voltage source, past your resistors, to your capacitor isn't. It's a NODE. The simulator models it as a single connection point, with a single voltage. You could redraw that circuit by changing the order of the components, making that line wiggly or very long, and the simulator will treat it in exactly the same way.
If you want to describe a physical conductor, perhaps 1m of copper wire 1mm2 area, then as a first order approximation, valid for DC, you can model that as a series resistor of 0.017ohms.
If you want better (more realistic, matching what real wires do at higher frequencies) models, then adding some series inductance, or using a transmission line of a suitable impedance would be the things to do.
We always try to use the simplest model that describes what we need describing, and nothing more.
answered May 25 at 13:39
Neil_UKNeil_UK
81.5k285188
$endgroup$
What looks like a 'line' running from your voltage source, past your resistors, to your capacitor isn't. It's a NODE. The simulator models it as a single connection point, with a single voltage. You could redraw that circuit by changing the order of the components, making that line wiggly or very long, and the simulator will treat it in exactly the same way.
If you want to describe a physical conductor, perhaps 1m of copper wire 1mm2 area, then as a first order approximation, valid for DC, you can model that as a series resistor of 0.017ohms.
If you want better (more realistic, matching what real wires do at higher frequencies) models, then adding some series inductance, or using a transmission line of a suitable impedance would be the things to do.
We always try to use the simplest model that describes what we need describing, and nothing more.
answered May 25 at 13:39
Neil_UKNeil_UK
81.5k285188
edited May 25 at 13:45
answered May 25 at 13:39
Neil_UKNeil_UK
81.5k285188
answered May 25 at 13:39
Neil_UKNeil_UK
81.5k285188
answered May 25 at 13:39
Neil_UKNeil_UK
81.5k285188
81.5k285188
$begingroup$
Yes I think this is what I'm looking for, I will do a model that has some series resistance and inductance.
$endgroup$
– Nmaster88
May 25 at 18:43
add a comment |
$begingroup$
Yes I think this is what I'm looking for, I will do a model that has some series resistance and inductance.
$endgroup$
– Nmaster88
May 25 at 18:43
$begingroup$
Yes I think this is what I'm looking for, I will do a model that has some series resistance and inductance.
$endgroup$
– Nmaster88
May 25 at 18:43
$begingroup$
Yes I think this is what I'm looking for, I will do a model that has some series resistance and inductance.
$endgroup$
– Nmaster88
May 25 at 18:43
add a comment |
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$begingroup$
Real wires have inductance, capacitance, and resistance that you haven't modelled here.
$endgroup$
– Hearth
May 25 at 13:28
$begingroup$
but for the vlaues you used, these will most certainly not ever play a role. How can you do a spice simulation without having thought about what a connection in a schematic means? It just literally means "these two points are somehow connected. We model this connection to be loss- and lengthless", Nmaster88.
$endgroup$
– Marcus Müller
May 25 at 13:29