New answers tagged termination
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Why does voltage in RS485 bus change significantly when termination resistor is connected?
The first notice is that you are using the MAX485 with 3.3V and it's not intended to be used at 3.3V but 5V so all your findings may be irrelevant due to wrong supply voltage. The chip doesn't even ...
- 119k
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Why does voltage in RS485 bus change significantly when termination resistor is connected?
Some RS485 transceivers come with pull-up resistors so you don't
have to add them yourself. Before you added the termination resistor,
the pull-up resistors could pull the lines to the supply ...
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Accepted
TTL bus termination physical circuit layout
how important [is] the physical location of the [terminators?]
All important. Within limits:
A transmission line is a useful model when its properties are ...
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Is this a right magnetics termination for PoE and non-PoE application
No. That's not correct. It does not terminate.
There is an AC short circuit between center taps.
If you compare with Bob Smith, it has impedance between center tap, either DC or AC coupled.
- 119k
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Novel CAN bus design - needs criticism
Not an answer, but a formatted comment.
You'll also have to deal with addressing. If you are using a CAN, bus contention is resolved based on node address, where the lower the address, the higher the ...
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Accepted
Understanding passive TTL termination
Yes, that seems like a "standard" termination for TTL buses. The 220/330 are very typical values and very often seen. But they are not the only values.
Yes, schematics describe the logical ...
- 119k
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