| 摘要 |
PROBLEM TO BE SOLVED: To provide an energizing device for an electromagnetic welder which is free from making noise, damage and exhaustion of a contact. SOLUTION: Capacitors 1a, 1b, 1c and 1d, upper flat coils 2a, 2b, 2c and 2d, lower flat coils 3a, 3b, 3c and 3d and transistors 4a, 4b, 4c and 4d are connected respectively in series. The connection points of one of the electrodes of the capacitors 1a, 1b, 1c and 1d and the transistors 4a, 4b, 4c and 4d are connected with one electrode of a high voltage DC power source device 5. The other electrode of the DC power source device 5 is connected with the connection points of the other electrodes of the capacitors 1a, 1b, 1c and 1d and the upper flat coils 2a, 2b, 2c and 2d respectively through restriction resistors 6a, 6b, 6c and 6d. |
