Datasheet

IRG4IBC30FD
8 www.irf.com
Fig. 18b - Test Waveforms for Circuit of Fig. 18a, Defining
E
off
, t
d(off)
, t
f
∫
Vce ie dt
t2
t1
5% Vce
Ic
Ipk
Vcc
10% Ic
Vce
t1
t2
DUT VOLTAGE
AND CURRENT
GATE VOLTAGE D.U.T.
+Vg
10% +Vg
90% Ic
tr
td(on)
DIODE REVERSE
RECOVERY ENERGY
tx
Eon =
∫
Erec =
t4
t3
Vd id dt
t4
t3
DIODE RECOVERY
WAVEFORMS
Ic
Vpk
10% Vcc
Irr
10% Irr
Vcc
trr
∫
Qrr =
trr
tx
id dt
Same type
device as
D.U.T.
D.U.T.
430µF
80%
of Vce
Fig. 18a - Test Circuit for Measurement of
I
LM
, E
on
, E
off(diode)
, t
rr
, Q
rr
, I
rr
, t
d(on)
, t
r
, t
d(off)
, t
f
Fig. 18c - Test Waveforms for Circuit of Fig. 18a,
Defining E
on
, t
d(on)
, t
r
Fig. 18d - Test Waveforms for Circuit of Fig. 18a,
Defining E
rec
, t
rr
, Q
rr
, I
rr
t=5µs
d(on)
t
t
f
t
r
90%
t
d(off)
10%
90%
10%
5%
C
I
C
E
on
E
off
ts on off
E = (E +E )
V
V
ge