FIND THE ANSWERS

How can i run a 12 v dc relay without the use of a capacitor... plz help me with this question. m waiting....?

Answer this question

  • How can i run a 12 v dc relay without the use of a capacitor... plz help me with this question. m waiting....?


Answers

Answer #1 | 08/02 2014 13:53
A capacitor is used to 'absorb' the inductive voltage spike of the magnetic field around the coil, when the contact that controls the relay is opened. This prevents burning and welding of the switch contacts. Most engineers use a diode connected across the coil (in the reverse voltage mode) tp collapse the field right at the relay coil. I would never recommend the use of a DC relay without the capacitor or diode (diode preferably). An AC doesn't experience as large of a voltage spike as the DC relay, due to the voltage variations during each cycle. TexMav
Positive: 74 %
Answer #2 | 08/02 2014 20:47
Running a relay is no need to use a capacitor.
Positive: 68 %

Possible answer

Transformer less AC to DC power supply circuit using dropping ... X capacitor….please help me here i’m a ... Can i use a 2.2uF mica capacitor in ...
Read more
Positive: 74 %
How to use a relay. ... .My question is can i give 70V DC as a coil voltage my current draw ... for 6v relay how much watt ac bulb is required??? plz tell me.
Read more
Positive: 69 %
The Basics. This column is ... Ripple voltages are present in almost any DC circuit. You can see even with the bypass, ... The type of capacitor you use ...
Read more
Positive: 55 %
How to Check a Start Capacitor. ... Another method to test a run capacitor with out ... This will discharged the capacitor so you can handle it without ...
Read more
Positive: 32 %

Show more results