Working of capacitor

  • Thread starter jeevansai
  • Start date
  • #1
5
0
I have heard that a capacitor increases the voltage of output in a circuit can anyone explain it
 

Answers and Replies

  • #2
Bystander
Science Advisor
Homework Helper
Gold Member
5,203
1,225
capacitor increases the voltage of output in a circuit
It does not. You may have heard that a capacitor increases the stability of the output voltage of a circuit.
 
  • #3
1,184
223
I have heard that a capacitor increases the voltage of output in a circuit can anyone explain it
Yes, in conjunction with inductance of the AC voltage source it can increase voltage output. Loses must be realitively small for that to happen. Easiest way to see it is to draw the phasors diagram. Typicall example is capacitively loaded transformer.
 
  • #4
1,405
372
It is a very generic statement - in a rectified DC case ( like a wall wart) the added capacitance can help reduce the ripple, this can, in many cases increase the average output voltage. In an AC case - if the load has a large inductive portion ( most do) adding capacitance provides the current to the inductive (reactive current) portion of the load - so the supply only needs to supply current to the Real part of the load - less current in the supply will decrease the voltage drop and increase the voltage.
 

Related Threads on Working of capacitor

  • Last Post
Replies
1
Views
922
Replies
7
Views
4K
  • Last Post
Replies
7
Views
22K
  • Last Post
Replies
12
Views
1K
  • Last Post
Replies
3
Views
7K
  • Last Post
Replies
10
Views
2K
  • Last Post
Replies
5
Views
4K
  • Last Post
Replies
10
Views
11K
Replies
13
Views
2K
Replies
2
Views
6K
Top