like a backbone switch, a workgroup switch can support a large number of ethernet addresses per port and can replace a router and segment networks or users 工作組交換機像基干交換機一樣,能在每個端口上支持大量的以太網地址,并能代替路由器和分段網或用戶。
voltage segment network constituted by electron switch of bta and controlled by single chip microcomputer constitutes a new fast electronic regulator . for bta cross zero touch off, sine wave which is exported is integrity . a new way to generate stable ac current is found with feed back control system by single chip microcomputer . so a new high power ac current regulator is developed 采用單片機控制雙向可控硅作為電子開關所組成的電壓分節網絡,組成新穎快速的電子調壓器;由于雙向可控硅過零觸發,所以其輸出是不失真的完整正弦波;再用單片機組成反饋控制系統,從而找到了交流穩流的新方法,研制出一個大功率交流穩流電源
abstract : voltage segment network constituted by electron switch of bta and controlled by single chip microcomputer constitutes a new fast electronic regulator . for bta cross zero touch off, sine wave which is exported is integrity . a new way to generate stable ac current is found with feed back control system by single chip microcomputer . so a new high power ac current regulator is developed 文摘:采用單片機控制雙向可控硅作為電子開關所組成的電壓分節網絡,組成新穎快速的電子調壓器;由于雙向可控硅過零觸發,所以其輸出是不失真的完整正弦波;再用單片機組成反饋控制系統,從而找到了交流穩流的新方法,研制出一個大功率交流穩流電源