Control circuit for electromagnetic apparatus

Details Control circuit for electromagnetic apparatus Control circuit for electromagnetic apparatus

F - Mech Eng,Light,Heat,Weapons

04

B

342/18

F04B 49/00 (2006.01) F04B 49/06 (2006.01) H01F 7/06 (2006.01) H01F 7/18 (2006.01)

Patent

CA 1101967

ABSTRACT OF THE DISCLOSURE A control circuit for an electromagnetic cutting apparatus includes auxiliary power impulse systems and auxiliary condensers for accelerating an already moving plunger of the cutting apparatus. The basic control circuit includes photo- electric sensors for sensing the leading and trailing edges of components. The sensors are part of an electronic circuit for rapidly charging a coil surrounding a core on the plunger for driving a blade downwardly to cut the tape. Condensers in the electronic circuit are normally charged and, in response to signals from the photoelectric sensors, instantaneously discharge into the coil to actuate the plunger. The auxiliary power impulse systems and auxiliary condensers are controlled by timers for discharging the auxiliary condensers into the coil a short time after the condensers of the basic circuit and while the plunger is moving to accelerate the latter.

307385

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