Break before make circuit..what is it?

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seamoss

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Hi,

I just came across this terminology of break before make circuit, was wondering what it is ? googling does not give enough information. I just want to learn the basics of it.
 

When you are switching a signal path between two different sources a "break before make" opens the original signal path before the new signal path is closed. It avoids any momentary shorting between the two signal sources.
 
Oh I see, so it is just another name for nonoverlapping signal generator..
 

crutschow said:
Not sure what a "nonoverlapping signal generator" is.:?:
Click to expand...

Perhaps he is relating it to a two-phase clock.

seamoss said:
Oh I see, so it is just another name for nonoverlapping signal generator..
Click to expand...

Such a signal could possibly be used to switch back and forth between two sources in a "break before make" style, but that's a method of achieving it, not a synonym for it.
 

Yes, I was relating to two phase clock which don't overlap, so there is no chance that both clocks/signals are high at the same time. But, I get your point..thanks for your answers
 

seamoss said:
Yes, I was relating to two phase clock which don't overlap, so there is no chance that both clocks/signals are high at the same time. But, I get your point..thanks for your answers
Click to expand...

As an example, think of a switched capacitor circuitry. This works only in case of "break before make".
 
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