| 摘要 |
PROBLEM TO BE SOLVED: To provide a switch device that costs less. ! SOLUTION: A switch device 1 has two diodes D1, D2. A switch S3 is disposed so as to be switchable between a connection state in which it connects a terminal t3 with an anode of the diode D1 and an interruption state in which it disconnects the terminal t3 from the diode D1. A switch S1 is disposed so as to be switchable between a first connection state in which it connects a terminal t1 with a cathode of the diode D1 and a second connection state in which it connects the terminals t1, t3 via the switch S3 in the connection state. A switch S4 is disposed so as to be switchable between a connection state in which it connects a terminal t4 with an anode of the diode D2 and an interruption state in which it disconnects the terminal t4 from the diode D2. A switch S2 is disposed so as to be switchable between a first connection state in which it connects a terminal t2 with a cathode of the diode D2 and a second connection state in which it conne |
