From 84676a3a69c9631d07ddcc63bd4a90ad06f4272d Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sat, 27 Jul 2019 17:06:08 -0700 Subject: [PATCH] Switch pyro series resistors to 1k This limits the current through the comparator to 3.3mA when it fires to make sure the gate voltage on the FET is low enough. The SI LM293 comparators are rated at 4mA current, unlike the TI parts which are rated at 6mA, hence the move from 549 to 1k. Signed-off-by: Keith Packard --- fctester.sch | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fctester.sch b/fctester.sch index b72f643..6af41e7 100644 --- a/fctester.sch +++ b/fctester.sch @@ -685,7 +685,7 @@ loadstatus=smt T 60900 63000 5 10 1 1 180 0 1 refdes=R2 T 61300 63000 5 10 1 1 180 0 1 -value=549 +value=1k } C 60500 64500 1 0 0 resistor.sym { @@ -702,7 +702,7 @@ loadstatus=smt T 60900 64900 5 10 1 1 180 0 1 refdes=R1 T 61300 64900 5 10 1 1 180 0 1 -value=549 +value=1k } C 64100 64600 1 90 0 resistor.sym { @@ -890,7 +890,7 @@ loadstatus=smt T 63900 63000 5 10 1 1 180 0 1 refdes=R3 T 64300 63000 5 10 1 1 180 0 1 -value=549 +value=1k } C 64400 62400 1 0 0 FDS9926A.sym { @@ -941,7 +941,7 @@ loadstatus=smt T 66900 63000 5 10 1 1 180 0 1 refdes=R4 T 67300 63000 5 10 1 1 180 0 1 -value=549 +value=1k } C 67400 62400 1 0 0 FDS9926A.sym { @@ -991,7 +991,7 @@ loadstatus=smt T 69900 63000 5 10 1 1 180 0 1 refdes=R5 T 70300 63000 5 10 1 1 180 0 1 -value=549 +value=1k } C 70400 62400 1 0 0 FDS9926A.sym { @@ -1041,7 +1041,7 @@ loadstatus=smt T 72900 63000 5 10 1 1 180 0 1 refdes=R6 T 73300 63000 5 10 1 1 180 0 1 -value=549 +value=1k } C 73400 62400 1 0 0 FDS9926A.sym { @@ -1091,7 +1091,7 @@ loadstatus=smt T 75900 63000 5 10 1 1 180 0 1 refdes=R7 T 76300 63000 5 10 1 1 180 0 1 -value=549 +value=1k } C 76400 62400 1 0 0 FDS9926A.sym { -- 2.47.2