CPC H02J 7/0031 (2013.01) [H01M 10/4235 (2013.01); H02J 7/0036 (2013.01)] | 13 Claims |
1. A secondary battery protection circuit comprising:
a first memory circuit electrically connected to a secondary battery;
a comparison circuit electrically connected to the first memory circuit;
a second memory circuit electrically connected to the comparison circuit; and
a power-off switch electrically connected to the second memory circuit,
wherein the power-off switch is electrically connected to the secondary battery,
wherein the first memory circuit comprises a first transistor comprising an oxide semiconductor, and
wherein the first transistor is configured to retain a voltage value of the secondary battery in an analog manner.
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