New Products Flash Sale
Thread Tools
Old May 15, 2015, 07:25 AM
jetigm is offline
Find More Posts by jetigm
Registered User
Joined Aug 2009
38 Posts
Help!
Current sensor @ MOSTET's

This is high power current sensing module for the Ardupilot.
The question is - may I use a MOSFET's in parallel against of the current sensing resistor? I want to design a custom Power Module with the cut off protection to save the LiPo when fully discharged. So I think to use a MOSFET's as a current sensor and at the same time as a key to cut off the load.
Conceptually - is it possible to do in this way?
jetigm is offline Find More Posts by jetigm
Reply With Quote
Sign up now
to remove ads between posts
Old May 15, 2015, 11:02 AM
speedyb_tx is offline
Find More Posts by speedyb_tx
Registered User
speedyb_tx's Avatar
United States, TX, Van Alstyne
Joined Dec 2014
317 Posts
Are you wanting to make a LiPo discharger ?
or just LiPo voltage sensing
speedyb_tx is offline Find More Posts by speedyb_tx
Reply With Quote
Old May 15, 2015, 11:42 AM
jetigm is offline
Find More Posts by jetigm
Registered User
Joined Aug 2009
38 Posts
The question is closed. The resistance of a MOSFET's highly depends of it's temperature so large inaccuracy will be in the current sensing system.
jetigm is offline Find More Posts by jetigm
Reply With Quote
Old May 15, 2015, 02:09 PM
speedyb_tx is offline
Find More Posts by speedyb_tx
Registered User
speedyb_tx's Avatar
United States, TX, Van Alstyne
Joined Dec 2014
317 Posts
so are you going to give up on the project, or seek the correct way of doing it ?
speedyb_tx is offline Find More Posts by speedyb_tx
Reply With Quote


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold FrSky X Serie s.port Telemetry Lipo, GPS and 150a Current Sensor divemasterphil Aircraft - General - Radio Equipment (FS/W) 2 Apr 18, 2015 03:16 PM
Discussion FrSky Current Analog Current Sensor jsut210 Radios 4 Dec 07, 2014 10:29 AM
Discussion Difference between Tiny OSD III w/ 60a Current Sensor vs 80a current sensor? sonicweapon FPV Equipment 1 Nov 02, 2013 05:22 PM
Sold GPS and Current Sensor For Cyclops OSD's Johnnymeg FPV Equipment (FS/W) 0 Jun 23, 2013 11:56 PM
Help! BLACK STORK OSD current sensor's photo fotopilotas.lt FPV Talk 1 May 07, 2010 11:33 AM