本文介紹了一種利用復(fù)雜可編程邏輯器件(CPLD)設(shè)計(jì)28V 直流固態(tài)功控系統(tǒng)的方法,
對整個系統(tǒng)進(jìn)行了詳細(xì)的介紹和說明。固態(tài)功控系統(tǒng)由控制和邏輯部件、固態(tài)開關(guān)部件和電流感受部件組成。固態(tài)開關(guān)部件采用電力MOSFET 做軟開關(guān),使得電路通斷時,不會出現(xiàn)打火花的現(xiàn)象。在可編程邏輯區(qū),運(yùn)用硬件描述語言(VHDL)在CPLD 上實(shí)現(xiàn)了SSPC 的控制和邏輯功能。
關(guān)鍵字: CPLD; 功率控制; 多開關(guān); VHDL
Abstract: This paper introduces a design of the 28V DC-SSPC using complex programmable
logic device (CPLD).A detailed description of the whole system is presented. The SSPC is
composed of control and logic device, solid-state switch device and current-sense device. The olid state switch device uses power MOSFET as soft switch, so, the spark doesn't appear when he circuit turn on or turn off In the design of programmable logic units, the logic control function f SSPC is accomplished by Very-high-peed-IC Hardware Description Language (VHDL) rogrammed on CPLD.
Keywords: CPLD; DC-SSPC; Multi-Switch; VHDL