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Battery Monitor on an Automotive Relay Form Factor

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Thanks to Jesus for sending us another tip! Jesus writes:

On the past you cover some of the designs I post on my webpage. Well, here’s the last one. I hope you find it interesting!

Best regards from Spain, Jesus

From Designing Electronics in Spain:

Hi all! I’m really busy this year so I can’t post all the projects where I’m involved. Here’s one of the design I do last year for a client. He wants to measure the voltage of a car battery and set a couple of alarms when voltage falls below a defined values. Also, he wants to put the device in the relay box of the car, so the design needs to have a relay form factor to easy integration. So, after a couple of iterations, here’s the final design of the battery monitor.

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