| 摘要 |
PROBLEM TO BE SOLVED: To obtain a power supply circuit by which energy can be supplied to an internal circuit without giving the influence of a noise by a method wherein an aggregate battery in which (n) pieces of battery blocks are cascade-connected is installed and (n) pieces of terminal pairs which supply voltages across both ends of them to the outside are installed. SOLUTION: A power supply circuit 1 for an aggregate battery is constituted of the aggregate battery 10 and of terminals 18 to 28 which are connected to a plurality of lines derived from the aggregate battery 10. The aggregate battery 10 is constituted by connecting four 2.2V battery cells in series. In addition, a terminal 12 and a terminal 16 are connected across both ends of the aggregate battery 10, and the terminal 16 is connected to a ground. Consequently, a voltage of 8.8V can be supplied from a part between the terminal 12 and the terminal 16. A terminal 14 is connected to a part between a battery cell 2 and a battery cell 3 so as to divide a battery cell 1 and the battery cell 2 as well as the battery 3 and the battery cell 4. Consequently, a voltage of 4.4V can be supplied respectively from a part between the terminal 12 and the terminal 14 as well as a part between the terminal 14 and the terminal 16. As a result, energy can be supplied to an internal circuit without giving the influence of a generated noise. |
