Announcement

Collapse
No announcement yet.

How To Make Use Of Back EMF Of Coil , So As Addiing To Same Circuit Forward??

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • How To Make Use Of Back EMF Of Coil , So As Addiing To Same Circuit Forward??


    Hi! Can you describe to me how to add the Back EMF during off time of inductor voltage forward to add to same circuit with it's higher voltage ? Example- 34VDC half wave 6 amps through L coil 1.5Millihenry with several diodes added . Frequency of source 20khz. Current flow goes through charged capacitor , but needs also the added Back EMF of about 100v. I was thinking about a diode to ground , so as the return ALSO goes through spark gap to get to opposite side of inductor coil. Like the buck and boost converter, the polarity changes on coil during the off time. Common relay coils just waste the energy on parallel diode. I assume positive current only passes through anode of diode. The formula didn't look right as E volts = L Henry (di/dt). 150v= .0015H x 6A/ .00006sec .06millisec The pulse is maybe too fast just to get 100v. 1/F=P T=L / R R=25ohms

















    Last edited by russwr; 01-03-2023, 07:50 AM.
Working...
X