An app note from Bourns on their high voltage isolation magnetics to monitor large energy storages. Link here (PDF) Energy storage systems are emerging as one of the potential solutions to increase system flexibility due to their unique capability to quickly absorb, hold and then reinject electricity. Over the last few years, DC voltages in […]
Tag Archives: battery monitor
App note: How to monitor state-of-charge in small batteries with tiny, ultra-low-power comparators
App note from Maxim Integrated about low current and voltage battery monitors. Link here Many of today’s portable consumer electronic devices are powered by small button or coin-cell batteries. Users, of course, expect long battery life and reliable charge-level information. However, it can be quite challenging to efficiently monitor the health and state-of-charge (SOC) of […]
Battery monitor on a automotive relay form factor
Jesus Echavarria made this battery monitor and wrote a post on his blog detailing its assembly: 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 […]
PIC 12F675 battery monitor using a diode/LED and resistor
Here’s a circuit by Joe Desbonnet’s Random Tech Stuff that’s designed to monitor battery voltage. It uses one resistor, one diode (or LED), one microcontroller ADC input and one digital output. A practical application using a PIC 12F675 is presented. This allows you to monitor battery voltage under load, allowing sufficient time to replace the […]