6AV6641-0AA11-0AX0觸摸屏
開關型直流穩壓電源
與線性穩壓電源不同的一類穩電源就是開關型直流穩壓電源,它的電路型式主要有單端反激式,單端正激式、半橋式、推挽式和全橋式。它和線性電源的根本區別在於它變壓器不工作在工頻而是工作在幾十千赫茲到幾兆赫茲。功能管不是工作在飽和就是截止區即開關狀態;開關電源因此而得名。
6AV6641-0AA11-0AX0觸摸屏
輔助電路有什麼作用?
答:300V直流電通過輔助電源開關管成為脈衝電流,通過輔助電源變壓器輸出二組交流電壓,一路經整流、三端穩壓器穩壓,輸出+5VSB,加到主板上作為待機電壓;另一路經整流濾波,輸出輔助20V電源,供給PWM等芯片工作。有了輔助電路,計算機就可以實現軟件開機、關機了。
KSD1-16驅動器
6AV6641-0AA11-0AX0觸摸屏
Compaq 223337-001 2mb WRAM PCI VGA
Compaq 223337-001 2mb WRAM PCI VGA
Dual Head AGP G45-MDHA16D/Ibm MGI Ibm 09N9237 MATROX 971-0301 MT061 Grafikkarte
Dual Head AGP G45-MDHA16D/Ibm MGI Ibm 09N9237 MATROX 971-0301 MT061 Grafikkarte
G250-MILA/8/0E5 MATROX 8MB AGP VIDEO CARD WITH VGA OUTPUT
G250-MILA/8/0E5 MATROX 8MB AGP VIDEO CARD WITH VGA OUTPUT
HP/Matrox 5064-7478 Matrox AGP Video Card 871-01 REV A
HP/Matrox 5064-7478 Matrox AGP Video Card 871-01 REV A
IBM/Matrox 728-02 VGA 8mb AGP 顯卡 01k4340 mil2a/8/ib2
IBM/Matrox 728-02 VGA 8mb AGP 顯卡 01k4340 mil2a/8/ib2
Matroc G550 32MB - Grafikkarte - AGP - VGA
Matroc G550 32MB - Grafikkarte - AGP - VGA
Matrox
Matrox 7089-02 rtx10 板顯卡
MATROX 904-04 64+ MDHA16G AGP GRAPHICS CARD
MATROX 904-04 64+ MDHA16G AGP GRAPHICS CARD
MATROX 906-01 MGI G4 MDHA32MB DUAL VGA AGP GRAPHICS CARD
MATROX 906-01 MGI G4 MDHA32MB DUAL VGA AGP GRAPHICS CARD
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G Proa / 8BL/20 AGP
Matrox G+/PROA/8BL/20 AGP
Matrox G+/PROA/8BL/20 AGP
Matrox G100a/4/OEM G100a/4bf/20 MGA-G100A Chip 4MB Sgram AGP Graphic Card 790-01
Matrox G100a/4/OEM G100a/4bf/20 MGA-G100A Chip 4MB Sgram AGP Graphic Card 790-01