摘要:
A contour line of a circle or an object having a configuration close to a circle or a portion thereof is identified by presuming picture image data representing a contour candidate point of the object to be detected among picture image data representing the brightness of one picture in which the object presents, and then scanning the picture image data of a predetermined region containing the picture image.
摘要:
An electrically insulated switching element driver includes: a pulse transformer driving unit into which a switching element driving signal and a duty signal are input and which drives, in accordance with the duty signal, a first or second pulse transformer that is selected depending on a state of the switching element driving signal; a first edge detection unit that outputs an on-off signal according to an edge in a pre-rectification output of the first pulse transformer; a second edge detection unit that outputs an on-off signal according to an edge in a pre-rectification output of the second pulse transformer; and a control driving unit that drives a switching element to be driven, based on the output of the first and second edge detection units, wherein the first and second edge detection units and the control driving unit operate with power resulting from rectifying the output of the first and second pulse transformers.
摘要:
An electrically insulated switching element driver includes: a pulse transformer driving unit into which a switching element driving signal and a duty signal are input and which drives, in accordance with the duty signal, a first or second pulse transformer that is selected depending on a state of the switching element driving signal; a first edge detection unit that outputs an on-off signal according to an edge in a pre-rectification output of the first pulse transformer; a second edge detection unit that outputs an on-off signal according to an edge in a pre-rectification output of the second pulse transformer; and a control driving unit that drives a switching element to be driven, based on the output of the first and second edge detection units, wherein the first and second edge detection units and the control driving unit operate with power resulting from rectifying the output of the first and second pulse transformers.
摘要:
A vacuum switchgear system for a three phase electric power system, wherein a switchgear comprises a vacuum switch comprising a vacuum container and switches accommodated in the vacuum switch and an operation unit. Each of the switches and each of the operation units is coaxially connected with an operating rod of each of the switches. A link mechanism of the operation unit is connected with a link of the adjoining operation units of the switchgears. Each of the link mechanisms transmits a force of the driving rod assisted by an electro-magnet to the adjoining driving rods through the link mechanisms so that the operation units and the switches in the same phase and the same vacuum container are operated in synchronism in response to a switch-on signal or a switch-off signal.