From ad8553c0952f73345f5a471e4ad97263f0a99daf Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sat, 27 Jul 2019 17:04:05 -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 --- telemega.sch | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/telemega.sch b/telemega.sch index ad43a32..02ced50 100644 --- a/telemega.sch +++ b/telemega.sch @@ -267,7 +267,7 @@ device=RESISTOR T 49600 49300 5 10 1 1 180 0 1 refdes=R7 T 50000 49300 5 10 1 1 180 0 1 -value=549 +value=1k T 49200 48900 5 10 0 0 90 0 1 footprint=0402 } @@ -278,7 +278,7 @@ device=RESISTOR T 43300 49300 5 10 1 1 180 0 1 refdes=R8 T 43700 49300 5 10 1 1 180 0 1 -value=549 +value=1k T 42900 48900 5 10 0 0 90 0 1 footprint=0402 } @@ -667,7 +667,7 @@ device=RESISTOR T 49600 45900 5 10 1 1 180 0 1 refdes=R9 T 50000 45900 5 10 1 1 180 0 1 -value=549 +value=1k T 49200 45500 5 10 0 0 90 0 1 footprint=0402 } @@ -815,7 +815,7 @@ device=RESISTOR T 43300 42500 5 10 1 1 180 0 1 refdes=R12 T 43700 42500 5 10 1 1 180 0 1 -value=549 +value=1k T 42900 42100 5 10 0 0 90 0 1 footprint=0402 } @@ -2688,7 +2688,7 @@ device=RESISTOR T 43300 45900 5 10 1 1 180 0 1 refdes=R10 T 43700 45900 5 10 1 1 180 0 1 -value=549 +value=1k T 42900 45500 5 10 0 0 90 0 1 footprint=0402 } @@ -2699,7 +2699,7 @@ device=RESISTOR T 49600 42500 5 10 1 1 180 0 1 refdes=R11 T 50000 42500 5 10 1 1 180 0 1 -value=549 +value=1k T 49200 42100 5 10 0 0 90 0 1 footprint=0402 } -- 2.30.2