Super Capacitors Monitoring System Using CAN Bus Protocol

The present work describes a monitoring system of a bank of supercapacitors (SCB) based on the use of CAN BUS protocol as the data transmission mode. A boost converter with 12.5 V at its output is included to stabilize the voltage in the supercapacitors. This paper provide a basis for the design of a diagnostic systems which aim to monitor the storage, to extend the supercapacitors life cycle and to detect the voltage variations outside the range of operation that could damage the bank. A circuit is implemented in a way that it allows to balance the voltages of the SCB and to avoid a variation of voltage that could cause the destruction of the components. The monitoring system will receive the voltage data of the SCB by means of the CAN bus protocol and show these voltages through a graphical interface in an intelligent screen, the monitoring will allow to detect an over voltage and thus avoid premature damage in these elements.