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Woodstock Low Power
03-24-2018, 12:23 PM (This post was last modified: 03-24-2018 12:25 PM by Maximilian Hohmann.)
Post: #109
RE: Woodstock Low Power
Hello!

I now (think I) found out what causes the occasional total battery drain of my Panamatik LP calculator. As I suspected it is the voltage booster that feeds the GPS which causes it. When the battery voltage drops below a certain level the device turns itself on, probably because the high signal which inhbits the device is no longer recognised as high (my guess only of course). It will then stay on permanently and feed the GPS it's 3,3V until down to well below 1V, thereby completely discharging the batteries very quickly.

I have no idea how to solve this problem other than using a voltage converter which needs a high signal for turning it on (rather than off). Thereby falling battery voltage could never turn the device on. Another solution might be to put a diode between the battery and the positive input of the voltage booster thereby making sure that the high signal coming from the Panamatik board is always (0,2...0,6V, depending on the diode used) higher than the supply voltage. Howerver with decreasing battery voltage there will always come a time when the Panamatik board will quit working and the inhibit signal drops to zero.
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Woodstock Low Power - PANAMATIK - 07-25-2017, 11:54 PM
RE: Woodstock Low Power - toml_12953 - 07-26-2017, 02:16 AM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 06:40 AM
RE: Woodstock Low Power - Paul Dale - 07-26-2017, 11:33 AM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 12:02 PM
RE: Woodstock Low Power - BobVA - 07-26-2017, 04:00 AM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 07:24 AM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 02:01 PM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 05:46 PM
RE: Woodstock Low Power - BobVA - 07-26-2017, 05:14 PM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 05:52 PM
RE: Woodstock Low Power - PANAMATIK - 07-28-2017, 05:51 PM
RE: Woodstock Low Power - everettr - 07-28-2017, 10:03 PM
RE: Woodstock Low Power - PANAMATIK - 07-29-2017, 06:12 AM
RE: Woodstock Low Power - PANAMATIK - 08-15-2017, 06:44 AM
RE: Woodstock Low Power - Paul Dale - 08-15-2017, 07:01 AM
RE: Woodstock Low Power - jjohnson873 - 08-15-2017, 03:03 PM
RE: Woodstock Low Power - PANAMATIK - 08-15-2017, 08:11 PM
RE: Woodstock Low Power - PANAMATIK - 10-15-2017, 07:52 PM
RE: Woodstock Low Power - BobVA - 10-15-2017, 09:38 PM
RE: Woodstock Low Power - PANAMATIK - 10-15-2017, 10:27 PM
RE: Woodstock Low Power - Mark Hardman - 10-16-2017, 01:15 AM
RE: Woodstock Low Power - PANAMATIK - 10-16-2017, 06:46 AM
RE: Woodstock Low Power - PANAMATIK - 10-17-2017, 07:39 PM
RE: Woodstock Low Power - Paul Dale - 10-17-2017, 11:23 PM
RE: Woodstock Low Power - Harald - 10-18-2017, 07:44 AM
RE: Woodstock Low Power - PANAMATIK - 10-18-2017, 05:20 PM
RE: Woodstock Low Power - PANAMATIK - 10-31-2017, 10:32 AM
RE: Woodstock Low Power - Harald - 11-01-2017, 10:05 AM
RE: Woodstock Low Power - hewlpac - 10-31-2017, 02:43 PM
RE: Woodstock Low Power - BobVA - 10-31-2017, 03:51 PM
RE: Woodstock Low Power - Craig Bladow - 10-31-2017, 04:21 PM
RE: Woodstock Low Power - PANAMATIK - 10-31-2017, 07:09 PM
RE: Woodstock Low Power - PANAMATIK - 10-31-2017, 07:10 PM
RE: Woodstock Low Power - Sadsilence - 11-01-2017, 06:28 PM
RE: Woodstock Low Power - Hans-Peter - 10-31-2017, 09:32 PM
RE: Woodstock Low Power - Paul Dale - 11-01-2017, 09:02 AM
RE: Woodstock Low Power - PANAMATIK - 11-05-2017, 04:57 PM
RE: Woodstock Low Power - Hans-Peter - 11-05-2017, 05:45 PM
RE: Woodstock Low Power - PANAMATIK - 11-05-2017, 07:38 PM
RE: Woodstock Low Power - markhen - 11-09-2017, 05:38 PM
RE: Woodstock Low Power - PANAMATIK - 11-10-2017, 10:55 PM
RE: Woodstock Low Power - PANAMATIK - 11-20-2017, 10:45 AM
RE: Woodstock Low Power - rprosperi - 11-20-2017, 01:59 PM
RE: Woodstock Low Power - BobVA - 11-21-2017, 02:13 AM
RE: Woodstock Low Power - PANAMATIK - 11-21-2017, 08:39 AM
RE: Woodstock Low Power - Benoit Maag - 11-23-2017, 05:49 PM
RE: Woodstock Low Power - rprosperi - 11-25-2017, 02:50 PM
RE: Woodstock Low Power - PANAMATIK - 11-25-2017, 09:24 PM
RE: Woodstock Low Power - PANAMATIK - 11-27-2017, 06:09 PM
RE: Woodstock Low Power - PANAMATIK - 11-28-2017, 10:08 PM
RE: Woodstock Low Power - BobVA - 11-29-2017, 12:46 AM
RE: Woodstock Low Power - teenix - 11-29-2017, 04:03 AM
RE: Woodstock Low Power - PANAMATIK - 11-29-2017, 07:01 AM
RE: Woodstock Low Power - PANAMATIK - 12-01-2017, 06:56 PM
RE: Woodstock Low Power - PANAMATIK - 12-03-2017, 05:27 PM
RE: Woodstock Low Power - hewlpac - 12-03-2017, 05:36 PM
RE: Woodstock Low Power - BobVA - 12-03-2017, 08:30 PM
RE: Woodstock Low Power - PANAMATIK - 12-08-2017, 12:44 PM
RE: Woodstock Low Power - Didier Lachieze - 12-08-2017, 12:57 PM
RE: Woodstock Low Power - PANAMATIK - 12-08-2017, 03:45 PM
RE: Woodstock Low Power - BobVA - 12-08-2017, 04:25 PM
RE: Woodstock Low Power - hewlpac - 12-19-2017, 01:34 AM
RE: Woodstock Low Power - PANAMATIK - 01-06-2018, 07:50 PM
RE: Woodstock Low Power - Dieter - 01-07-2018, 09:41 AM
RE: Woodstock Low Power - rprosperi - 01-08-2018, 09:28 PM
RE: Woodstock Low Power - Harald - 01-06-2018, 08:48 PM
RE: Woodstock Low Power - Paul Dale - 01-07-2018, 06:54 AM
RE: Woodstock Low Power - badaze - 01-07-2018, 12:27 PM
RE: Woodstock Low Power - Dieter - 01-08-2018, 10:25 AM
RE: Woodstock Low Power - badaze - 01-08-2018, 06:46 PM
RE: Woodstock Low Power - hewlpac - 01-08-2018, 07:32 PM
RE: Woodstock Low Power - Harald - 01-09-2018, 09:39 AM
RE: Woodstock Low Power - PANAMATIK - 01-09-2018, 10:00 PM
RE: Woodstock Low Power - Harald - 01-09-2018, 10:39 PM
RE: Woodstock Low Power - PANAMATIK - 01-09-2018, 11:42 PM
RE: Woodstock Low Power - Harald - 01-10-2018, 09:17 AM
RE: Woodstock Low Power - PANAMATIK - 01-10-2018, 09:42 AM
RE: Woodstock Low Power - PANAMATIK - 02-04-2018, 07:26 AM
RE: Woodstock Low Power - PANAMATIK - 02-04-2018, 10:52 AM
RE: Woodstock Low Power - PANAMATIK - 02-04-2018, 04:52 PM
RE: Woodstock Low Power - PANAMATIK - 02-04-2018, 06:01 PM
RE: Woodstock Low Power - PANAMATIK - 02-05-2018, 06:47 PM
RE: Woodstock Low Power - PANAMATIK - 02-12-2018, 05:52 AM
RE: Woodstock Low Power - PANAMATIK - 02-14-2018, 10:09 AM
RE: Woodstock Low Power - BobVA - 02-14-2018, 05:00 PM
RE: Woodstock Low Power - Paul Dale - 02-14-2018, 11:12 AM
RE: Woodstock Low Power - hewlpac - 02-14-2018, 04:29 PM
RE: Woodstock Low Power - Harald - 03-05-2018, 09:46 AM
RE: Woodstock Low Power - PANAMATIK - 03-05-2018, 01:12 PM
RE: Woodstock Low Power - PANAMATIK - 03-12-2018, 10:19 AM
RE: Woodstock Low Power - jjohnson873 - 03-13-2018, 01:00 AM
RE: Woodstock Low Power - jjohnson873 - 03-07-2018, 02:38 PM
RE: Woodstock Low Power - Maximilian Hohmann - 03-24-2018 12:23 PM
RE: Woodstock Low Power - PANAMATIK - 03-25-2018, 12:55 PM
RE: Woodstock Low Power - PANAMATIK - 03-28-2018, 09:17 PM
RE: Woodstock Low Power - PANAMATIK - 05-09-2018, 12:30 PM
RE: Woodstock Low Power - Harald - 05-11-2018, 10:31 PM



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