IPC-TM-650 EN 2022 试验方法1.pdf - 第632页
ANSI/J-STD-001 IPC-TM-650 Page 1 of 4
Table 1 Examples for Battery, Dropping
Resistor, and Accuracy
V R Accuracy
6 600 -0.8%
9 900 -0.6%
12 1200 -0.4%
24 2400 -0.2%
48 4800 -0.1%
Figure 3 Simple Constant Current Source
UUT
0 TO 5
OHMS
10 MA
CURRENT
R
V
MILLIVOLT
METER
IPC-TM-650
Number
Subject Date
Revision
Page 3 of 3
ANSI/J-STD-001
IPC-TM-650
Page 1 of 4
Figure 1 Apparatus for Transient Measurement
OSCILLOSCOPE
AC LINE
FILTER ASSEMBLY
1 MEGOHM
INPUT
RECEPTACLE
FOR UUT
UUT
10 MEGOHM
(X10) SCOPE
PROBE
TEST
ELECTRODE
STRAIN
RELIEF
TO
AC
AC
LINE
FILTER
METAL BOX
BLK BLK
WHTWHT
GRN GRN
IPC-TM-650
Number
Subject Date
Revision
Page 2 of 4