| 摘要 |
PROBLEM TO BE SOLVED: To provide a voltage detection circuit having small detecting errors.SOLUTION: The voltage detection circuit includes: a plurality of even numbered of voltage detection nodes; at least one odd number of voltage detection node; a voltage difference generation circuit; a selection circuit; and an operational circuit. The selection circuit controls a connection relationship between the voltage difference generation circuit, the plurality of even numbered voltage detection nodes, and the at least one odd numbered voltage detection node, so that the voltage difference generation circuit generate a voltage difference between voltage detection nodes. The operational circuit knows that a voltage of a first even numbered voltage detection node is a reference voltage, or obtains a voltage of the first even numbered voltage detection node based on the reference voltage. The voltages of the voltage detection nodes are obtained, based on the voltage difference between the voltage detection nodes and the first even numbered voltage detection node. |
