參數(shù)資料
型號: 30CPU04PBF
廠商: International Rectifier
英文描述: ULTRAFAST RECTIFIER
中文描述: 超快整流器
文件頁數(shù): 5/7頁
文件大?。?/td> 171K
代理商: 30CPU04PBF
Bulletin PD-20674 04/04
5
30CPU04PbF
www.irf.com
Fig. 10 - Reverse Recovery Waveform and Definitions
IRFP250
D.U.T.
L = 70μH
V = 200V
0.01
G
D
S
dif/dt
ADJUST
t
a
t
b
t
rr
Q
rr
I
F
I
RRM
I
RRM
0.5
di(rec)M/dt
0.75 I
RRM
5
4
3
2
0
1
di /dt
/dt
Fig. 9- Reverse Recovery Parameter Test Circuit
Reverse Recovery Circuit
/dt
4. Q
rr
- Area under curve defined by t
rr
and I
RRM
Q
rr
=t
rr
x I
RRM
5. di
(rec) M
/ dt - Peak rate of change of
current during t
b
portion of t
rr
1. di
/dt - Rate of change of current through zero
crossing
2. I
RRM
- Peak reverse recovery current
3. t
- Reverse recovery time measured from zero
crossing point of negative going I
F
to point where
a line passing through 0.75 I
RRM
and 0.50 I
RRM
extrapolated to zero current
2
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