Technical Explanation
SKiiP
®
3 Parallel Board
© by SEMIKRON
2017-08-30
– Rev02
16 / 20
13 Short pulse suppression and pulse extension
The short pulse suppression time is defined as t
SIS
in the SKiiP
®
3 Parallel board data sheet. The function
suppresses short turn-on and off-pulses at the pins TOP IN and BOT IN of the DIN connector of connected
SKiiP
®
3 subsystems. Thus it adds to every commutation ~ 625ns delay time.
In this way the IGBTs are protected against spurious noise which can occur due to bursts on the signal lines.
Pulses shorter than t
SIS
are suppressed. If the pulse is longer than t
sis
=625ns but shorter than 1µs, it will be
automatically extended to 1µs
by the Parallel board. Otherwise it is possible, that the rest of pulse after short
pulse suppression of Parallel board will be faulty determined by the SKiiP
®
3 as spurious noise and will be
suppressed. The short pulse suppression and extension are shown in the Figure 11.
Figure 11:
Short pulse suppression and extension
14 Paralleling of SKiiP systems
Please refer to SKiiP
®
3 Technical Explanation Rev.2
Chapter “Paralleling of SKiiP” for further information.
15 Mounting of SKiiP
®
3 F-Option
For mounting of SKiiP
®
3 F-Option the following components could be used:
Plastic standoff adapters: round, length 20 mm, screw thread M4, material Polyamid 6,6, diamether 8 mm
(for example: 05.44.320)
Plastic round head screw: M 4 x 8, DIN 85/ISO 1580, PA 6.6, trench (for example: 01.45.436)
Plastic screw nut: M4 metric (Example: 02.05.049)
As long as a SKiiP
®
3 F-Option is mounted on a SKiiP
®
3 Parallel board, it will be supplied by the internal 15V
supply voltage from the connector X1.
Table 9:
Digital signal characteristic of +15V separate supply
Para15V
Separate Supply
Specification @ -40°C <= T
a
<= 85°C
Ouput signal
+15V
DC
OUT at connector X1
Circuit supply voltage
V
S
(+15V ±4% / max. 50mA)
