江蘇省BUMHAN電抗器BHBD-DE3,BHBD-DE6,BHBD-DE12,中山立訊電氣有限公司直銷SHINHO,SYSTEM韓國星河信號變送器,
SHN-500,Programable,Converter
SHN-600,High/Low,Setter(Programable,Converter)
SHN-700,Programable,Pulse,Converter
SHN-ACC,CT,Transmitter
SHN-ASC,Adder&Subtractor,Converter
SHN-AVC,PT,Converter
SHN-DFC,DC,To,Frequnecy,Converter
SHN-DSC,Signal,Converter
SHN-FDC,Frequency,To,DC,Converter
SHN-FRR,Frequency,Surge,Protector(10KA/Wall,Mount)系統(tǒng)響應(yīng)時(shí)間過長是交互式系統(tǒng)中用戶抱怨多的問題,除了響應(yīng)時(shí)間的長短外,用戶對不同命令在響應(yīng)時(shí)間上的差別亦很在意,若過于懸殊用戶將難以接受;用戶求助機(jī)制宜采用集成式,避免疊加式系統(tǒng)導(dǎo)致用戶求助某項(xiàng)指南而不得不瀏覽大量無關(guān)信息;錯(cuò)誤和警告信息必須選用用戶明了、含義準(zhǔn)確的術(shù)語描述,同時(shí)還應(yīng)盡可能提供一些有關(guān)錯(cuò)誤恢復(fù)的建議。此外,顯示出錯(cuò)信息時(shí),若再輔以聽覺(鈴聲)、視覺(顏色)刺激,則效果更佳;命令方式是菜單與鍵盤命令并存,供用戶選用。借助CASE工具構(gòu)造界面原型,并真正實(shí)現(xiàn)設(shè)計(jì)模型軟件模型一旦確定,即可構(gòu)造一個(gè)軟件原形,此時(shí)僅有用戶界面部分,此原形交用戶評審,根據(jù)反饋意見修改后再交給用戶評審,直至與用戶模型和系統(tǒng)假想一致為止。
SHN-FSC,Pulse,Scaler,Converter
SHN-HLS,High/Low,Setter,Converter
SHN-IPS,Current,Loop,Supply,Converter
SHN-ISO,Signal,Converter
SHN-LCT,Load,Cell,Converter
SHN-LIM,Signal,Limit,Converter
SHN-PDB,Power,Supply,Converter
SHN-PDC,Pulse,Divid,Converter
SHN-PHC,Peak,Hold,Converter
SHN-PMC,Potentiometer,Converter
SHN-RTD,RTD,Converter
SHN-RVS,Signal,Reverse,Converter
SHN-SHC,Sample,Hold,Converter
SHN-SHL,High/Low,Select,Converter
SHN-SIS,Signal,Select,Converter
SHN-SQT,Square,Root,Extract,Converter
SHN-T/C,T/C,Converter
SHINHO,SYSTEM韓國星河信號變送器
SPN-ACC,CT,Transmitter(4-Output),,
SPN-AVC,PT,Converter(4-Output),,
SPN-DSC,Signal,Converter(4-Output),,
SPN-HLS,High/Low,Setter,Converter(4-Output),,
SPN-IPS,Current,Loop,Supply,Converter(4-Output),,
SPN-ISO,Signal,Converter(4-Output),,
SPN-PMC,Potentiometer,Converter(4-Output),,
SPN-RTD,RTD,Converter(4-Output),,
SPN-RVS,Reverse,Converter,,
SPN-SQT,Square,Root,Extract,Converter(4-Output),,
SPN-T/C,T/C,Converter(4-Output),,
SSN-ACC,CT,Converter(Wall,Mount),,
SSN-AVC,PT,Converter(Wall,Mount),,其周期決定于kf,振幅決定于ku,中曲線①,載波為雙極性的等腰三角波,其周期決定于載波頻率,振幅不變,與ku=1時(shí)正弦波的振幅值相等。調(diào)制波與載波的交點(diǎn)決定了逆變橋輸出相電壓的脈沖系列,此脈沖系列也是雙極性的,但是,由相電壓合成為線電壓(uab=ua-ub;ubc=ub-uc;uca=uc-ua)時(shí),所得到的線電壓脈沖系列卻是單極性的。(2)雙極性調(diào)制的工作特點(diǎn):逆變橋在工作時(shí),同一橋臂的兩個(gè)逆變器件總是按相電壓脈沖系列的規(guī)律交替地導(dǎo)通和關(guān)斷,毫不停息,而流過負(fù)載ZL的是按線電壓規(guī)律變化的交變電流。實(shí)施SPWM的基本要求(1)必須實(shí)時(shí)地計(jì)算調(diào)制波(正弦波)和載波(三角波)的所有交點(diǎn)的時(shí)間坐標(biāo)。
SSN-DSC,Signal,Converter(Wall,Mount),,
SSN-IPS,Current,Loop,Supply,Converter(Wall,Mount),,
SSN-ISO,Signal,Converter(Wall,Mount),,
SSN-PMC,Potentiometer,Converter(Wall,Mount),,
SSN-RTD,RTD,Converter(Wall,Mount),,
SSN-RVS,Reverse,Converter(Wall,Mount),,
SSN-SQT,Square,Root,Extract,Converter(Wall,Mount),,
SHN-1100,Indicator(Mosaic,Type),
SHN-1200,Total,Counter(Mosaic,Type),,
SHN-3110,Indicator(Only,Display,Type),,
SHN-2000,Total,Counter,,
SMI-3000,Indicator(Smart,Program,Type),,
PRI-3000,Multi,Input,Program,Type,,
SMI-3000,Indicator(Smart,Program,Type),,
SB-6100,Bar-Graphic,Type,,
SHN-3700,Indicator(Large,Display,Type),,
SHN-3800,Indicator(Large,Display,Type/Dual,Indicating),,
SHINHO,SYSTEM韓國星河避雷器
SHN-ARR30/70,,Signal,Line,Surge,Protector(3KA/Wall,Mount),,
SHN-ARR30-1/70-1,,Signal,Line,Surge,Protector(10KA/Wall,Mount),,
SHN-ARR30-1R/70-1R,,Signal,Line,Surge,Protector(10KA/Rail,Mount),,
SSP-10/25/40R,,Signal,Line,Surge,Protector(10KA/25KA/40KA),,
SSP-25/40,,Signal,Line,Surge,Protector(25KA/40KA),,
SHN-PRR125,,Power,Line,Surge,Protector(3KA/110V/Wall,Mount),,
SHN-PRR125-1,,Power,Line,Surge,Protector(10KA/110V/Wall,Mount),,
SHN-PRR125-1R,,Power,Line,Surge,Protector(10KA/110V/Rail,Mount),,按尺寸可分為:貼片型0603,0805,1206,1210,1812,2016,2920;非貼片型Φ2.4×7,Φ3×7,Φ3.6×10,Φ4.5×15,Φ5.0×20,Φ5.16×20,Φ6×25,Φ6×30,Φ6×32,Φ8.5×8,Φ8.5×8×4,Φ10×38,Φ14×51。自復(fù)絲零功率電阻低:自復(fù)絲自身阻抗較低,正常工作時(shí)功率損耗小,表面溫度低。過流保護(hù)速度快:自復(fù)絲由于自身材料特性,過流狀態(tài)響應(yīng)速度比其它過流保護(hù)裝置快得多。自鎖運(yùn)行:自復(fù)絲在過流保護(hù)狀態(tài),以極小的電流鎖定在高阻狀態(tài),只有切斷電源或過電流消失后,才會(huì)恢復(fù)低阻狀態(tài)。自動(dòng)復(fù)位:自復(fù)絲在起到過流保護(hù)作用后(故障排除)自行復(fù)位。
SHN-PRR250,,Power,Line,Surge,Protector(3KA/220V/Wall,Mount),,
SHN-PRR250-1,,Power,Line,Surge,Protector(10KA/220V/Wall,Mount),,
SHN-PRR250-1R,,Power,Line,Surge,Protector(10KA/220V/Rail,Mount),,
PSP-30/40/50,RP,,Surge,Protector(捍紡/竄惑)(30KA/40KA/50KA),,
PSP-30/40/50,RS,,Surge,Protector(流紡/竄惑)(30KA/40KA/50KA),,
PSP30/50,,Surge,Protector(流紡/竄惑/Wall,Mounting)(30KA/50KA),,
PSP-40/80/120(2P2W),,Surge,Protector(捍紡/竄惑/Wall,Mounting)(40KA/80KA/120KA),,
PSP-40/80/120(3P4W),,Surge,Protector(捍紡/3惑/Wall,Mounting)(40KA/80KA/120KA),,
PSP-M200,,Surge,Protector(捍紡/竄惑/3惑)(20KA/40KA/80KA.....),,
PSP-M400,,Surge,Protector(捍紡/竄惑/3惑)(20KA/40KA/80KA.....),,
SHN-TMR,,Telecommunication,Line,Surge,Protector(3KA),,
SHN-TMR-1R,,Telecommunication,Line,Surge,Protector(10KA),,
TSP-10/20,,Telecommunication,Line,Surge,Protector(10KA/20KA),,
SHN-PMR,,Potentiometer,Surge,Protector(10KA/Wall,Mount),,
SHN-FRR,,Frequency,Surge,Protector(10KA/Wall,Mount),,
SHN-RTR,,RTD,Line,Surge,Protector(10KA/Wall,Mount),,
SHN-TCR,,T/C,Line,Surge,Protector(10KA/Wall,Mount),,
SSP-25/40,,Signal,Line,Surge,Protector(25KA/40KA),完全關(guān)斷同樣開關(guān)Q1的時(shí)間大約是完全導(dǎo)通時(shí)間的48倍。當(dāng)外部負(fù)載或C2在啟動(dòng)瞬間要汲取較大電流時(shí),快速導(dǎo)通Q1可能使MAX810輸入電壓低于其復(fù)位門檻電壓從而導(dǎo)致復(fù)位出現(xiàn),因此在圖2基礎(chǔ)上再增加一RC網(wǎng)絡(luò)以減緩其開通過程,合適地選擇R、C可使負(fù)載連接過程延續(xù)到幾個(gè)MAX668開關(guān)工作周期,使MAX668的輸出電壓一直高于MAX810的復(fù)位門檻電壓。假如R、C使Q1的導(dǎo)通時(shí)間延長,同時(shí)也延長了關(guān)斷時(shí)間。因此需要在電阻上并聯(lián)一肖特基二極管,以加速當(dāng)負(fù)載過載時(shí)關(guān)閉Q1的進(jìn)程。為了獲得增強(qiáng)型通道及較低的導(dǎo)通電阻,上述電路均需要采用邏輯電平控制的P溝道MOSFET,如果Q1的導(dǎo)通電阻值較大且在其兩端產(chǎn)生較大的壓降(特別是低輸出電壓應(yīng)用場合或負(fù)載離電源的距離較遠(yuǎn)時(shí))。