| abstract |
PROBLEM TO BE SOLVED: To provide a power supply circuit corresponding to a reduction in size, thickness and weight by providing a new backup battery. A power supply circuit including a main power supply, an operation unit including a memory element, a main power supply monitoring unit, and a backup battery, wherein the power generation unit of the backup battery includes at least a first power source. The acidic medium 32 having the electrode 31 disposed thereon and the basic medium 34 having the second electrode 33 disposed thereon, the acidic medium and the basic medium being adjacent to or close to each other, the acidic medium A power supply circuit comprising a reactive substance in at least one of a medium and the basic medium. [Selection] Figure 3 |