用STP40055设计100W电源
时间:10-02
整理:3721RD
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设计要求:
1.0 INPUT CHARACTERISTICS | ||||||
1.1 Input Voltage | 22~~26VDC | |||||
1.2 Input Current | 6.25A | |||||
2.0 OUTPUT CHARACTERISTICS | ||||||
2.1 DC Output Characteristics | ||||||
END-1000 (100W) | ||||||
Output | V1 | V2 | V3 | V4 | V5 | |
Voltage | +5V | +3.3V | +12V | -12V | +5Vsb | |
Max. Load | 6A | 5A | 3A | 0.5A | 2A | |
Max Output power | 30W | 16.5W | 36W | 6W | 10W | |
Over All Reg.% | +/-5% | +/-5% | +/-5% | +/-6% | +/-5% | |
Ripple & Noise | 120mV | 100mV | 120mV | 350mV | 100mV |
2.4 Efficiency | |
85% min. at full load. |
设计计算:
一. FUSE計算
Pout=150W Vin=22V~26V η=85%min
I=P0ut/ηVinmin=8A
在OVER POWER條件下,FUSE不能熔斷,設定OPP點為1.1%~1.5%
故此:FUSE選用:1.5X8A=12A
在OVER POWER條件下,FUSE不能熔斷,設定OPP點為1.1%~1.5%
故此:FUSE選用:1.5X8A=12A
设计计算:
一. FUSE計算
Pout=150W Vin=22V~26V η=85%min
I=P0ut/ηVinmin=8A
在OVER POWER條件下,FUSE不能熔斷,設定OPP點為1.1%~1.5%
故此:FUSE選用:1.5X8A=12A
在OVER POWER條件下,FUSE不能熔斷,設定OPP點為1.1%~1.5%
故此:FUSE選用:1.5X8A=12A
100W电源,采用什么变压器?