HFR8A12D Datasheet, PDF (3/3 Pages) YENYO TECHNOLOGY Co., Ltd – Glass Passivated Hyperfast Recovery Rectifier

Test Circuits and Waveforms
F IG .6 -t_rr T E S T C IR C UIT
V_{G E} AMP L IT UDE AND
R _G C ONT ROL d_FI /dt
t_{1 A ND}t₂ C ONT R OL _FI
R_G
V_GE
t₁
t₂
L
DUT
IGB T
CUR R E NT
S E NS E
+
- ^VDD
F IG . 8 A-VA L A NC HE E NE R G YT E S T C IR C UIT
I_MAX = 1A
L = 40mH
R < 0.1
E _{AV L} = 1/2L²I [V_{R (AV L )} /(V _{R (AV L )} -V _DD)]
Q₁ = IG B T (B_CV_{E S} > DUTV _{R (AV L )})
L
R
CUR R E NT
S E NS E
Q₁
DUT
+
V_DD
V_DD
-
F IG . 7 t-_rr WAV E F OR MS A ND DE F INIT IONS
dI_F
I_F
dt
0
t_rr
t_a
t_b
0.25 _RI _M
I_{R M}
F IG . 9 -AVAL ANC HE C UR R E NT AND VOLTAG E
WAVE FOR MS
V_{AV L}
I_L
I_L
IV
t₀
t₁
t₂
t
YENYO TECHNOLOGY CO., LTD.
3/3
R3, JAN-11