| 摘要 |
A circuit for automatically controlling an output voltage of a battery pack according to the present invention includes: a first output voltage regulating unit including a regulator; a first feedback resistance unit connected to the output end of the first output voltage regulating unit; a second feedback resistance unit connected to the first feedback resistance unit; a second output voltage regulating unit including a regulator; a third feedback resistance unit connected to the output end of the second output voltage regulating unit; a variable resistance unit connected to the third feedback resistance unit; and a control unit which detects a region voltage between the first feedback resistance unit and the second feedback resistance unit and the region voltage between the third feedback resistance unit and the variable resistance unit and transmits control signals to the first output voltage regulating unit and the second output voltage regulating unit. When a plurality of output voltage regulating units (regulator units) in parallel are included within the output voltage regulating circuit of the battery pack, the present invention makes equal voltage applied to each of the output voltage regulating units, thereby reducing calories generated in the output voltage regulating unit and expanding a life of the regulator. |
