Backup power supply system using a thermoelectric generator for managing data backup operation of an electronic device

Abstract

A backup power supply system for managing data backup operation of an electronic device, comprising: a DC/DC converter having a main power input and a power output; a boost converter having a power input and a power output; a thermoelectric generator associated with a chip and electrically connected to the power input of the boost converter, wherein the thermoelectric generator is able to heat or cool the chip; a microcontroller electrically connected to the power outputs of the first and the second power converter, and electrically connected to a set of components able to perform data backup operation of the electronic device, wherein the microcontroller is configured to determine an electrical energy required to perform data backup operation by the set of components, wherein the microcontroller is configured to compute from the determined electrical energy a temperature deviation to reach by the thermoelectric generator, wherein the temperature deviation is the difference between the temperature inside the chip and the ambient temperature of the chip, wherein the microcontroller is configured to command the regulation of the temperature inside the chip by means of the thermoelectric generator to reach the temperature deviation, wherein the microcontroller is configured to supply electrical energy to the set of components when data backup operation is triggered, the electrical energy being converted from the heat flux of the temperature deviation from the chip.