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

77%
+5 −0
Q&A Technique to reset pulse transformer core quickly

Is there any way to reset a core quickly without having ground / reference terminal pulled towards negative voltage Unfortunately not but, if instead of trying to send the complete pulse throu...

posted 2y ago by Andy aka‭  ·  edited 2y ago by Andy aka‭

Answer
#3: Post edited by user avatar Andy aka‭ · 2022-09-03T10:34:27Z (about 2 years ago)
  • > _Is there any way to reset a core quickly without having ground / reference terminal pulled towards negative voltage_
  • Unfortunately not but, if instead of trying to send the complete pulse through the transformer, you send edge information (i.e. use a series capacitor to perform a kind of differentiation), then you can adequately reconstruct the secondary voltage using a comparator with hysteresis. Here's what the output waveform would look like: -
  • ![Image alt text](https://electrical.codidact.com/uploads/uUMziJHeUdphq5jjSwqPxmAV)
  • And, feeding the output voltage to a comparator with hysteresis, will reconstruct your data pulse.
  • > _Is there any way to reset a core quickly without having ground / reference terminal pulled towards negative voltage_
  • Unfortunately not but, if instead of trying to send the complete pulse through the transformer, you send edge information (i.e. use a series capacitor to perform a kind of differentiation), then you can adequately reconstruct the secondary voltage using a comparator with hysteresis. Here's what the output waveform would look like: -
  • ![Image alt text](https://electrical.codidact.com/uploads/uUMziJHeUdphq5jjSwqPxmAV)
  • Below I've shown where you could set the upper and lower threshold limits for the comparator with hysteresis: -
  • ![Image alt text](https://electrical.codidact.com/uploads/ucTTym2wRzkUGTf1FEoDZaBB)
#2: Post edited by user avatar Andy aka‭ · 2022-09-02T12:08:17Z (about 2 years ago)
  • > _Is there any way to reset a core quickly without having ground / reference terminal pulled towards negative voltage_
  • Unfortunately not but, if instead of trying to send the complete pulse through the transformer, you send edge information (i.e. use a series capacitor to perform a kind of differentiation), then you can adequately reconstruct the secondary voltage using a comparator with hysteresis. Here's what the output waveform would look like: -
  • ![Image alt text](https://electrical.codidact.com/uploads/tkeUqWj5kWj1CkpD3yVbabnR)
  • And, feeding the output voltage to a comparator with hysteresis, will reconstruct your data pulse.
  • > _Is there any way to reset a core quickly without having ground / reference terminal pulled towards negative voltage_
  • Unfortunately not but, if instead of trying to send the complete pulse through the transformer, you send edge information (i.e. use a series capacitor to perform a kind of differentiation), then you can adequately reconstruct the secondary voltage using a comparator with hysteresis. Here's what the output waveform would look like: -
  • ![Image alt text](https://electrical.codidact.com/uploads/uUMziJHeUdphq5jjSwqPxmAV)
  • And, feeding the output voltage to a comparator with hysteresis, will reconstruct your data pulse.
#1: Initial revision by user avatar Andy aka‭ · 2022-09-02T12:07:05Z (about 2 years ago)
 > _Is there any way to reset a core quickly without having ground / reference terminal pulled towards negative voltage_ 

Unfortunately not but, if instead of trying to send the complete pulse through the transformer, you send edge information (i.e. use a series capacitor to perform a kind of differentiation), then you can adequately reconstruct the secondary voltage using a comparator with hysteresis. Here's what the output waveform would look like: -

![Image alt text](https://electrical.codidact.com/uploads/tkeUqWj5kWj1CkpD3yVbabnR)

And, feeding the output voltage to a comparator with hysteresis, will reconstruct your data pulse.