參數(shù)資料
型號: AN-30
英文描述: TOPSwitch-GX Forward Design Methodology
中文描述: 的TOPSwitch - GX系列正向設(shè)計(jì)方法
文件頁數(shù): 34/40頁
文件大?。?/td> 311K
代理商: AN-30
AN-30
34
B
12/02
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DUTY CYCLE PARAMETERS (see graph)
Dropout Duty-Cycle Parameters
DMAX ACTUAL
0.67
Operating Duty cycle at DC Bus dropout voltage
DMAX RESET
0.79
Transformer Reset Minimum duty cycle at DC Bus dropout voltage
DXDO MIN
0.68
Device Min Duty cycle limit at DC Bus dropout voltage
DXDO MAX
0.78
Device Max Duty cycle limit at DC Bus dropout voltage
DLL ACTUAL
0.46
Duty cycle at minimum DC Bus voltage
DXLL MIN
0.52
Duty cycle minimum limit at minimum DC Bus voltage
DXLL MAX
0.64
Duty cycle maximum limit at minimum DC Bus voltage
DLL RESET
0.69
Minimum duty cycle to reset transformer at low line
High Line Duty-Cycle Parameters
DHL ACTUAL
0.23
Duty cycle at minimum DC Bus voltage
DXHL MIN
Warning
0.13
!!! < 103% of operating duty cycle at max DC Bus voltage: increase DXHL MIN, decre
DXHL MAX
0.24
Duty cycle maximum limit at maximum DC Bus voltage
DHL RESET
0.36
Minimum duty cycle to reset transformer at high line
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
100
150
200
250
300
350
400
450
DC Bus Voltage, V
D_ACTUAL
D_RESET
DX_MIN
DX_MAX
V_OV
V_DROPOUT
Duty Cycle vs DC Bus Voltage
0.9
0.6
0.5
0.8
0.7
100
150
200 250
DC Bus Voltage, V
300
350 400 450
Duty Cycle vs. DC Bus Voltage
D
P
0
0.3
0.2
0.1
0.4
DX MAX exceeds D RESET
which means transformer
saturation may occur at
this point
V DROPOUT
V OV
D RESET
DX MAX
DX MIN
D ACTUAL
Figure C2. Example of D
RESET
Limit Violation.
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