HP10811 Oscillator Thermal Fuse
https://www.febo.com/pipermail/time-nuts/2017-May/date.html
While I find traces of your article quoted, it seems to have vanished.
It lead me to this interesting article of 16 pages on electronic fires
by a fire investigator. There is a lot here for designers when it
comes to preventing fires from your products. I would never have
dreamed of some of the ways that fires can start.
πθ°μΩω±√·Γλ
WB0KVV
---------- Forwarded message ----------
From: Van Horn, David david.vanhorn@backcountryaccess.com
Date: Thu, May 11, 2017 at 4:31 PM
Subject: Re: [time-nuts] Fwd: HP10811 Oscillator Thermal Fuse
To: Discussion of precise time and frequency measurement time-nuts@febo.com
There's an excellent article out there on the web called "Low Voltage,
the incompetent ignition source" I highly recommend a read.
I dealt with a case like this a couple years ago. Failed fet in an H
bridge caused a fault which the brick SMPS picked up as a short, and
went into "hiccup" mode on.
The energy delivered in "hiccup" mode was about 1W average, and that
was enough, after several hours, to cause ignition and sustained flame
on the PCB.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
The original article was from Kodiak consulting. Good thing I saved a copy.
Thanks for the link to this one.
-----Original Message-----
From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of Donald E. Pauly
Sent: Thursday, May 11, 2017 6:57 PM
To: time-nuts; Donald E. Pauly
Subject: [time-nuts] HP10811 Oscillator Thermal Fuse
https://www.febo.com/pipermail/time-nuts/2017-May/date.html
While I find traces of your article quoted, it seems to have vanished.
It lead me to this interesting article of 16 pages on electronic fires by a fire investigator. There is a lot here for designers when it comes to preventing fires from your products. I would never have dreamed of some of the ways that fires can start.
πθ°μΩω±√·Γλ
WB0KVV
---------- Forwarded message ----------
From: Van Horn, David david.vanhorn@backcountryaccess.com
Date: Thu, May 11, 2017 at 4:31 PM
Subject: Re: [time-nuts] Fwd: HP10811 Oscillator Thermal Fuse
To: Discussion of precise time and frequency measurement time-nuts@febo.com
There's an excellent article out there on the web called "Low Voltage, the incompetent ignition source" I highly recommend a read.
I dealt with a case like this a couple years ago. Failed fet in an H bridge caused a fault which the brick SMPS picked up as a short, and went into "hiccup" mode on.
The energy delivered in "hiccup" mode was about 1W average, and that was enough, after several hours, to cause ignition and sustained flame on the PCB.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
https://www.febo.com/pipermail/time-nuts/2017-Jun/date.html
We finally got in the Panasonic thermal fuses for the HP10811 and have
a few extra. They will either plug in or solder. Contact me if you
need one.
πθ°μΩω±√·Γλ
WB0KVV
---------- Forwarded message ----------
From: Van Horn, David david.vanhorn@backcountryaccess.com
Date: Thu, May 11, 2017 at 7:01 PM
Subject: Re: [time-nuts] HP10811 Oscillator Thermal Fuse
To: Discussion of precise time and frequency measurement time-nuts@febo.com
The original article was from Kodiak consulting. Good thing I saved a copy.
Thanks for the link to this one.