| 摘要 |
PROBLEM TO BE SOLVED: To reduce voltage and current ratings for a pressure contact switch, and to provide a smaller shape, reduced cost for parts, simplied mounting on a printed board and assembly, simplified constitution inside equipment, and a reduced number of assembling man-hous by using minute electric power obtained by a capacitor. SOLUTION: This control device comprises a first capacitor 2 and a second capacitor 3 connected, in series between lines of an AC power supply 1 in equipment, with a relay contact 4a being arranged in the line of the AC power supply 1 is controlled to be turned on/off by driving a relay coil 4b via a control circuit 6. The pressure contact switch 8 is arranged between the first capacitor 2 and a control circuit 6. A voltage in the circuit changed with the operation of he pressure contact switch 8, is inputted to a microcomputer 9, whose operation is started when a relay contact 4a is closed, and an output circuit 11 is connected to a microcomputer output which provides an output for controlling the drive of the relay coil 4b, to cause the relay coil 4b to drive. The control device has a function of controlling the relay contact 4a to be turned on/off by the pressure contact switch 8.
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