Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

Post History

28%
+0 −3
Q&A Series RLC circuit

It all depends on the values of the components:If the system will very slowly decay until the energy of the system reaches 0. If the system undergoes something which will look like a part of...

posted 2y ago by MissMulan‭  ·  edited 2y ago by MissMulan‭

Answer
#3: Post edited by user avatar MissMulan‭ · 2021-09-08T16:07:51Z (over 2 years ago)
  • It all depends on the values of the components:If
  • ![](https://electrical.codidact.com/uploads/8ym42jU8HUER4jr6uEFSL2QW)
  • the system will very slowly decay until the energy of the system reaches 0.
  • If
  • ![](https://electrical.codidact.com/uploads/mL9YkvUSVf8BH1MW96VuTu2V)
  • the system undergoes something which will look like a part of a oscillation and loses its energy very quickly
  • If
  • ![](https://electrical.codidact.com/uploads/dBSd36PuPH6yJ84shk7qdTZW)
  • it oscillates with decreasing amplitude until its energy reaches 0.
  • In our case:
  • ![](https://electrical.codidact.com/uploads/xqBmzivFipgBcRrLYvTGdEMr)
  • ![](https://electrical.codidact.com/uploads/fwzhAAuRZbiuXVPvAq3HP5Ae)
  • it will very slowly decay without any oscillation.In order to find the equation of current of this RLC circuit we must be introduced to 2 things:
  • Neper angular frequency -> a feature of damped systems
  • In the case of the series RLC circuit it is:
  • ![](https://electrical.codidact.com/uploads/D2iMorYukryhtQqg3bXhY92V)
  • The natural angular frequency -> the frequency response of the system under no damping
  • In a RLC circuit it is equal to:
  • ![Image alt text](https://electrical.codidact.com/uploads/RhZNfiqZx9ZGmHSnftjnLHU3)
  • The equation of current of this overdamped system takes this form:
  • ![Image alt text](https://electrical.codidact.com/uploads/u2cWGVD5oMCCR6gkzbvwqrc6)
  • where :
  • ![](https://electrical.codidact.com/uploads/ZRDLjwdRtkrFGKfr9bTVtt6G)
  • (1)
  • and:
  • ![](https://electrical.codidact.com/uploads/imNfVLKa1zjacV1MTP8iWjUh)
  • Now lets go calculate s1 and s2:
  • ![](https://electrical.codidact.com/uploads/qBbadovLpxGormHJeBW61wWb)
  • After the switch is closed:
  • ![Image alt text](https://electrical.codidact.com/uploads/wNSsrYNSB1hu6UgorJnL7Z8i)
  • and due to L1:
  • ![](https://electrical.codidact.com/uploads/oCDeSgowdkLP5a5xyeveXy3s)
  • so the voltage between L1 is:
  • ![](https://electrical.codidact.com/uploads/1YMPV5DcPvqiHdw8FoB8mDQU)
  • By substituting the values of s1,s2 VL1(0+),L1 and IL1(0+) to (1) and solving the system we get:
  • ![](https://electrical.codidact.com/uploads/rDVwMFUgTWfrNYEAW3hoabfv)
  • This is the equation of the current of the loop consisting of C1,L1,R2 after the switch is closed.
  • It all depends on the values of the components:If
  • ![](https://electrical.codidact.com/uploads/8ym42jU8HUER4jr6uEFSL2QW)
  • the system will very slowly decay until the energy of the system reaches 0.
  • If
  • ![](https://electrical.codidact.com/uploads/mL9YkvUSVf8BH1MW96VuTu2V)
  • the system undergoes something which will look like a part of a oscillation and loses its energy very quickly
  • If
  • ![](https://electrical.codidact.com/uploads/dBSd36PuPH6yJ84shk7qdTZW)
  • it oscillates with decreasing amplitude until its energy reaches 0.
  • In our case:
  • ![](https://electrical.codidact.com/uploads/xqBmzivFipgBcRrLYvTGdEMr)
  • ![](https://electrical.codidact.com/uploads/fwzhAAuRZbiuXVPvAq3HP5Ae)
  • it will very slowly decay without any oscillation.In order to find the equation of current of this RLC circuit we must be introduced to 2 things:
  • Neper angular frequency -> a feature of damped systems
  • In the case of the series RLC circuit it is:
  • ![](https://electrical.codidact.com/uploads/D2iMorYukryhtQqg3bXhY92V)
  • The natural angular frequency -> the frequency response of the system under no damping
  • In a RLC circuit it is equal to:
  • ![Image alt text](https://electrical.codidact.com/uploads/RhZNfiqZx9ZGmHSnftjnLHU3)
  • The equation of current of this overdamped system takes this form:
  • ![Image alt text](https://electrical.codidact.com/uploads/u2cWGVD5oMCCR6gkzbvwqrc6)
  • where :
  • ![](https://electrical.codidact.com/uploads/ZRDLjwdRtkrFGKfr9bTVtt6G)
  • (1)
  • and:
  • ![](https://electrical.codidact.com/uploads/imNfVLKa1zjacV1MTP8iWjUh)
  • Now lets go calculate s1 and s2:
  • ![](https://electrical.codidact.com/uploads/qBbadovLpxGormHJeBW61wWb)
  • After the switch is closed:
  • ![Image alt text](https://electrical.codidact.com/uploads/wNSsrYNSB1hu6UgorJnL7Z8i)
  • and due to L1:
  • ![](https://electrical.codidact.com/uploads/oCDeSgowdkLP5a5xyeveXy3s)
  • so the voltage between L1 is:
  • ![](https://electrical.codidact.com/uploads/1YMPV5DcPvqiHdw8FoB8mDQU)
  • By substituting the values of s1,s2 VL1(0+),L1 and IL1(0+) to (1) and solving the system we get:
  • ![](https://electrical.codidact.com/uploads/rDVwMFUgTWfrNYEAW3hoabfv)
  • This is the equation of the current of the loop consisting of C1,L1,R1 after the switch is closed.
#2: Post edited by user avatar MissMulan‭ · 2021-09-06T19:16:59Z (over 2 years ago)
  • It all depends on the values of the components:If
  • ![](https://electrical.codidact.com/uploads/8ym42jU8HUER4jr6uEFSL2QW)
  • the system will very slowly decay until the energy of the system reaches 0.
  • If
  • ![](https://electrical.codidact.com/uploads/mL9YkvUSVf8BH1MW96VuTu2V)
  • the system undergoes something which will look like a part of a oscillation and loses its energy very quickly
  • If
  • ![](https://electrical.codidact.com/uploads/dBSd36PuPH6yJ84shk7qdTZW)
  • it oscillates with decreasing amplitude until its energy reaches 0.
  • In our case:
  • ![](https://electrical.codidact.com/uploads/6dxozgLnSfUfFf7antzszExj)
  • since:
  • ![](https://electrical.codidact.com/uploads/fwzhAAuRZbiuXVPvAq3HP5Ae)
  • it will very slowly decay without any oscillation.In order to find the equation of current of this RLC circuit we must be introduced to 2 things:
  • Neper angular frequency -> a feature of damped systems
  • In the case of the series RLC circuit it is:
  • ![](https://electrical.codidact.com/uploads/pnofzBNJ1DicX31dBBRPRvvh)
  • The natural angular frequency -> the frequency response of the system under no damping
  • In a RLC circuit it is equal to:
  • ![Image alt text](https://electrical.codidact.com/uploads/RhZNfiqZx9ZGmHSnftjnLHU3)
  • The equation of current of this overdamped system takes this form:
  • ![Image alt text](https://electrical.codidact.com/uploads/u2cWGVD5oMCCR6gkzbvwqrc6)
  • where :
  • ![](https://electrical.codidact.com/uploads/ZRDLjwdRtkrFGKfr9bTVtt6G)
  • (1)
  • and:
  • ![](https://electrical.codidact.com/uploads/imNfVLKa1zjacV1MTP8iWjUh)
  • Now lets go calculate s1 and s2:
  • ![](https://electrical.codidact.com/uploads/qBbadovLpxGormHJeBW61wWb)
  • After the switch is closed:
  • ![Image alt text](https://electrical.codidact.com/uploads/wNSsrYNSB1hu6UgorJnL7Z8i)
  • and due to L1:
  • ![](https://electrical.codidact.com/uploads/oCDeSgowdkLP5a5xyeveXy3s)
  • so the voltage between L1 is:
  • ![](https://electrical.codidact.com/uploads/1YMPV5DcPvqiHdw8FoB8mDQU)
  • By substituting the values of s1,s2 VL1(0+),L1 to (1) and solving the system we get:
  • ![](https://electrical.codidact.com/uploads/rDVwMFUgTWfrNYEAW3hoabfv)
  • This is the equation of the current of the loop consisting of C1,L1,R2 after the switch is closed.
  • It all depends on the values of the components:If
  • ![](https://electrical.codidact.com/uploads/8ym42jU8HUER4jr6uEFSL2QW)
  • the system will very slowly decay until the energy of the system reaches 0.
  • If
  • ![](https://electrical.codidact.com/uploads/mL9YkvUSVf8BH1MW96VuTu2V)
  • the system undergoes something which will look like a part of a oscillation and loses its energy very quickly
  • If
  • ![](https://electrical.codidact.com/uploads/dBSd36PuPH6yJ84shk7qdTZW)
  • it oscillates with decreasing amplitude until its energy reaches 0.
  • In our case:
  • ![](https://electrical.codidact.com/uploads/xqBmzivFipgBcRrLYvTGdEMr)
  • ![](https://electrical.codidact.com/uploads/fwzhAAuRZbiuXVPvAq3HP5Ae)
  • it will very slowly decay without any oscillation.In order to find the equation of current of this RLC circuit we must be introduced to 2 things:
  • Neper angular frequency -> a feature of damped systems
  • In the case of the series RLC circuit it is:
  • ![](https://electrical.codidact.com/uploads/D2iMorYukryhtQqg3bXhY92V)
  • The natural angular frequency -> the frequency response of the system under no damping
  • In a RLC circuit it is equal to:
  • ![Image alt text](https://electrical.codidact.com/uploads/RhZNfiqZx9ZGmHSnftjnLHU3)
  • The equation of current of this overdamped system takes this form:
  • ![Image alt text](https://electrical.codidact.com/uploads/u2cWGVD5oMCCR6gkzbvwqrc6)
  • where :
  • ![](https://electrical.codidact.com/uploads/ZRDLjwdRtkrFGKfr9bTVtt6G)
  • (1)
  • and:
  • ![](https://electrical.codidact.com/uploads/imNfVLKa1zjacV1MTP8iWjUh)
  • Now lets go calculate s1 and s2:
  • ![](https://electrical.codidact.com/uploads/qBbadovLpxGormHJeBW61wWb)
  • After the switch is closed:
  • ![Image alt text](https://electrical.codidact.com/uploads/wNSsrYNSB1hu6UgorJnL7Z8i)
  • and due to L1:
  • ![](https://electrical.codidact.com/uploads/oCDeSgowdkLP5a5xyeveXy3s)
  • so the voltage between L1 is:
  • ![](https://electrical.codidact.com/uploads/1YMPV5DcPvqiHdw8FoB8mDQU)
  • By substituting the values of s1,s2 VL1(0+),L1 and IL1(0+) to (1) and solving the system we get:
  • ![](https://electrical.codidact.com/uploads/rDVwMFUgTWfrNYEAW3hoabfv)
  • This is the equation of the current of the loop consisting of C1,L1,R2 after the switch is closed.
#1: Initial revision by user avatar MissMulan‭ · 2021-09-06T17:03:40Z (over 2 years ago)
It all depends on the values of the components:If


![](https://electrical.codidact.com/uploads/8ym42jU8HUER4jr6uEFSL2QW)

the system will very slowly decay until the energy of the system reaches 0.

If 

![](https://electrical.codidact.com/uploads/mL9YkvUSVf8BH1MW96VuTu2V)

the system undergoes something which will look like a part of a oscillation and loses its energy very quickly

If

![](https://electrical.codidact.com/uploads/dBSd36PuPH6yJ84shk7qdTZW)

it oscillates with decreasing amplitude until its energy reaches 0.

In our case:

![](https://electrical.codidact.com/uploads/6dxozgLnSfUfFf7antzszExj)
since:

![](https://electrical.codidact.com/uploads/fwzhAAuRZbiuXVPvAq3HP5Ae)

it will very slowly decay without any oscillation.In order to find the equation of current of this RLC circuit we must be introduced to 2 things:

Neper angular frequency ->  a feature of damped systems


In the case of the series RLC circuit it is:

![](https://electrical.codidact.com/uploads/pnofzBNJ1DicX31dBBRPRvvh)

The natural angular frequency -> the frequency response of the system under no damping 

In a RLC circuit it is equal to:

![Image alt text](https://electrical.codidact.com/uploads/RhZNfiqZx9ZGmHSnftjnLHU3)

The equation of current of this overdamped system takes this form:

![Image alt text](https://electrical.codidact.com/uploads/u2cWGVD5oMCCR6gkzbvwqrc6)

where :

![](https://electrical.codidact.com/uploads/ZRDLjwdRtkrFGKfr9bTVtt6G)
(1)

and:

![](https://electrical.codidact.com/uploads/imNfVLKa1zjacV1MTP8iWjUh)

Now lets go calculate s1 and s2:

![](https://electrical.codidact.com/uploads/qBbadovLpxGormHJeBW61wWb)

After the switch is closed:

![Image alt text](https://electrical.codidact.com/uploads/wNSsrYNSB1hu6UgorJnL7Z8i)

and due to L1:

![](https://electrical.codidact.com/uploads/oCDeSgowdkLP5a5xyeveXy3s)

so the voltage between L1 is:

![](https://electrical.codidact.com/uploads/1YMPV5DcPvqiHdw8FoB8mDQU)

By substituting the values of s1,s2 VL1(0+),L1 to (1) and solving the system we get:

![](https://electrical.codidact.com/uploads/rDVwMFUgTWfrNYEAW3hoabfv)

This is the equation of the current of the loop consisting of C1,L1,R2 after the switch is closed.