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temperature detector with hysteresis in Verilog-A (Read 102 times)
boa
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temperature detector with hysteresis in Verilog-A
Jul 08th, 2008, 5:44am
 
Hi,

I need to make a Verilog-A model for temperature protection block and it should have temperature hysteresis: i.e. output should switch from zero to one at one treshhold temperature when temperature is rising and at different one when the temperature is following. Normally for comparator with hysteresis  I would use 2 cross statements with +1 and -1 direction, but it seems that cross works only for transient and I need smth that will work with DC sweep.

Is there any way to implement it?
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Geoffrey_Coram
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Re: temperature detector with hysteresis in Verilog-A
Reply #1 - Jul 10th, 2008, 10:33am
 
LRM 2.2 added the "above" event, which works like cross in transient, but also acts during dc.  You'll have to check if your simulator has implemented it yet.
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