■
Fuse is not build-in on input side. In order to protect the unit, install a fuse
shown in Table 2.2 in the input circuit.
(as shown in Table 2.2)
■
When applying for the medical electrical equipment standard, please install F11 and F12.
Table 2.2
Recommended
fuse
■
Install a film capacitor of 3μF or higher as input capacitor C11.
■
Use a safety approved capacitor.
■
If C11 is not connected, that may cause failure of the power supply or external components.
■
When selecting a capacitor, check the maximum allowable ripple current.
■
Ripple current includes low frequency component (input frequency) and high frequency
component (100kHz).
■
Ripple current values flowing into C11 as listed in Table 2.1 are shown in Fig.2.2.
■
The ripple current changes with PCB patterns, external parts, ambient temperature, etc.
Check the actual ripple current value flowing through C11.
Fig.2.2
Ripple current
values
C11
※
Ripple current value is the sum of parallel capacitors.
2.2 Input fuse: F11,F12
2.3 Input capacitor: C11
A-3
Rated current
85
～
264VAC
AC250V
以上
25A
Input voltage
range
85
～
305VAC
AC300V
以上
25A
Rated Voltage
Applications Manual
TUNS1200
0
500
1000
1500
2000
2500
0
20
40
60
80
100
120
Ripp
le
c
urren
t
［
m
A
rms
］
Output current
［
%
］
100VAC
200VAC
277VAC
