Showing posts with label AN1393. Show all posts
Showing posts with label AN1393. Show all posts
Saturday, February 23, 2019
Tuesday, September 18, 2018
Friday, August 25, 2017
LMxx39 Circus + 750ns & - 900ns Zero Cross
Circus
Ti provided Pspice thingy for LM339 (is annoyingly ▲impractical▲)+ (some of the chip names might be erroneous) -- anyway a good question here is why that cfg. doesn't generate "timestep too small" error . . .
Ti LM339 behavioural model as the bottom plot -- interestingly -- the closest match to prev. does not appear to be the right transistor circuit - the LM239 - but instead my experimental design as LMx39 (respectively LM293 and LMx93 in simulation circuit - both are the component level models e.g. the sub circuits) . . .
Cross the Zero +700ns
making the src. (whitch is yet another variant of the Lim.- or the Window comparator) more practical
Cross the Zero -900ns
using the "slope detector" - the right - first occurring comp.-pair signal can be passed to outp (removes the "echo")
[Eop]
Ti provided Pspice thingy for LM339 (is annoyingly ▲impractical▲)
Ti LM339 behavioural model as the bottom plot -- interestingly -- the closest match to prev. does not appear to be the right transistor circuit - the LM239 - but instead my experimental design as LMx39 (respectively LM293 and LMx93 in simulation circuit - both are the component level models e.g. the sub circuits) . . .
Cross the Zero +700ns
making the src. (whitch is yet another variant of the Lim.- or the Window comparator) more practical
Cross the Zero -900ns
using the "slope detector" - the right - first occurring comp.-pair signal can be passed to outp (removes the "echo")
[Eop]
Labels:
300kHz,
AN1393,
AN6914,
CMP04,
HA17339,
LM339,
LM393,
voltage comparator,
zero cross
Friday, December 16, 2016
LMx39 CLM Test
since the Philips didn't provided the internals we assume it's about LMx39 ! ???
Capabilities . . . ! Optimistic . . .
The next requires a fixed supply , no aging / temperature drift of the components (or very complex / fast auto adjust to . . .)
[Eop]
Capabilities . . . ! Optimistic . . .
The next requires a fixed supply , no aging / temperature drift of the components (or very complex / fast auto adjust to . . .)
[Eop]













