A board to parallel-connect 4 high-power batteries @MicrochipMakes
Limpkin’s blog discusses a board to parallel-connect 4 high-power batteries:
A simple ATtiny microcontroller interfaces with them, together with a simple 7-segment based display, a buzzer and two isolated relays. The microcontroller therefore automatically detects the presence of a battery connected to a given connector by checking for current, and whenever a current reading drops to zero while the others don’t then the MCU will enable the isolated relay connected the (dis)charge controller.
(Dis)charge controller you ask? A fancy word to say that most (for example) DC to AC inverters have dedicated disable inputs, which is exactly what we’ll use in case an issue is detected.
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