| |
|
|
| |
AC-DC Application Note |
|
| |
| AC
Input Line Connection : |
| |
The
pin of AC line (L), ac neutral (N), and the third wire
safety ground (FG) should be retained from the AC power
outlet to the power supply input terminals without
accidental interchange. (Figure 1.1) |
|
| |
 (Figure
1.1) |
|
| |
The
FG pin should be connected to the equipment where power
supply is placed as thicker and shorter to protect
electric shock or noise interference. (Figure 1.2) |
|
| |
 (Figure
1.2) |
|
|
|
| |
|
|
| |
| Fuse
: |
| |
To
add a fuse at the input terminals of the power supply
to provide safety and protection. We suggest using
a 1.5A slow blow fuse for our AC-DC Converters including
AHC, APC, ATC, ANC and ASC series. (Figure 2.1) |
|
| |
 (Figure
2.1) |
|
|
|
| |
|
|
| |
| Series
and parallel operation |
| |
I.
Series operation Most power converters can be operated
in series if they have overload limitation by either
constant current or constant power circuits. To protect
each output from the reverse voltage applied by the
other unit in the event of load short circuits, reverse
biased diodes are used as shown in Figure 3.1 |
|
| |
 (Figure
3.1) |
|
| |
II.
Parallel operation This is only recommended with power
converters specifically designed for parallel connection.
In the parallel redundant scheme illustrated in Figure
3.2 one of the power converters could be replaced by
a battery followed by a DC-DC converter to provide
a no-break power system in the event of main supply
failure. |
|
| |
 (Figure
3.2) |
|
|
|
| |
|
|
| |
| Reduce
the output ripple and noise : |
| |
Using
a LC filter or a Capacitor reduces the output ripple
and noise. (Figure 4.1) |
|
| |
 (Figure
4.1) |
|
|
|
| |
|
|
| |
| Screws
for Switching Power Supply (AQS & AQF Series) : |
| |
Please
be aware the length of screw should not be longer than
3 mm while you mounting/ adopting our power supply
on your end application, in case screw break through
Mylar or PCB Board result in short circuit. |
|
|
|
|
|
|
| |
|
|
| |
  |
|
| |
DC-DC Application Note |
|
| |
| Connection
for standard use : |
| |
Cin:
External capacitor on the input side
Co: External capacitor on the output side |
|
| |
 (Figure
4.1) |
|
|
|
| |
| Reverse
input voltage protection : |
| |
TAvoid
the reverse input voltage because it will damage the
power supply. Installing an external diode can protect
the converter from the reverse input voltage. |
|
| |
 |
|
|
|
| |
| Series
and parallel operation :: |
| |
I.
Series operation Most power converters can be operated
in series if they have overload limitation by either
constant current or constant power circuits. To protect
each output from the reverse voltage applied by the
other unit in the event of load short circuits, reverse
biased diodes are used as shown in Figure 3.1 |
|
| |
(Figure
3.1) |
|
| |
II.
Parallel operation This is only recommended with power
converters specifically designed for parallel connection.
In the parallel redundant scheme illustrated in Figure
3.2 one of the power converters could be replaced by
a battery followed by a DC-DC converter to provide
a no-break power system in the event of main supply
failure. |
|
| |
(Figure
3.2) |
|
|
|
| |
| Remote
On/ Off Control Pin : |
| |
Positive
logic remote on/ off turns the module on during a logic
high voltage on the remote on/ off pin, and off during
a logic voltage low. In order to turn module on or
off, the use must supply a switch to control the voltage
between the on / off terminal and the ¡VVin terminal. |
|
|
|
| |
|
|
| |
| EMI
Block Diagram : |
| |
Different
product series may have various values.Please contact
us for correct parameter if needed. |
|
| |
|
|
|
|
| |
|
|
| |
AC-DC Application Note: 
DC-DC Application Note: |
|
