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From: | Chris |
Subject: | Re: [Paparazzi-devel] YAPA2 help needed "SOLVED" |
Date: | Fri, 10 Aug 2012 10:46:52 +0300 |
User-agent: | Mozilla/5.0 (X11; Linux i686; rv:14.0) Gecko/20120714 Thunderbird/14.0 |
The results are horrifying.The current sensor's output is not current limited as it does not have any resistor in line with the output and the output follows the I*Rs *(72.3K/1K) formula (72.3K/1K is the op-amp's gain) Assuming a surge current of 100A which is low when thick wiring, low ESR capacitors
and high voltage is used we get an output of 7.23v with no current limiting. A 150A surge current will give an output of 10.8v Arggghhhh..... Chris
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