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參數(shù)資料
| 型號： | DI 300 |
| 廠商： | SIEMENS AG |
| 英文描述： | Phase Switch-off Dimmer(相位轉(zhuǎn)換調(diào)光器) |
| 中文描述： | 相開關(guān)過調(diào)光器（相位轉(zhuǎn)換調(diào)光器） |
| 文件頁數(shù)： | 5/5頁 |
| 文件大?。?/td> | 466K |
| 代理商： | DI 300 |
and those on the component must agree.
When the SMD components have all
been mounted, the next step is to
populate the component side with the
resistors and capacitors, the ceramic
resonator, the fuse-holder halves and the
Z-diode. As will be seen from the
component photo, diodes D1 to D4
should be mounted upright. When
mounting the screw terminal strips, care
must be taken that they lie flat on the
PCB, and the openings are toward the
outside.
After the connecting pins on the
MOS-FET have been bent backward
through 90o at a distance of 3 mm from
the package, it can then be mounted.
Push the M3x8mm pan-head screw
through the appropriate hole in the PCB
from its underside. On the component
side, the heatsink and the MOS-FET are
then put over the screw. These are
followed by the fan-type lock washer and
the M3 nut. After the screw has been
done up tight, the transistor can be
soldered.
Insertion of the fuse into its holder
completes the assembly work; check that
the components are inserted correctly.
Remove any unwanted solder bridges
which are present.
Installation
Figure 7 shows how the dimmer is
connected up. Terminal KL1 is used to
loop the dimmer into the power supply
circuit for the lamp. The incoming live
phase L is connected to the right-hand
terminal connector, while the load should
be connected to the left-hand terminal
connector “L”. The neutral conductor N
is not required on the dimmer itself,
because of its two-wire operation.
One or more switches can be
connected to KL2. As shown in Figure 6,
the L phase is connected internally in the
dimmer from KL1 through to KL2. If a
switch is pressed, the L phase is switched
through to the control input. Switching
the phase line has the advantage that only
one control line is required, provided that
the phase is also available at the point
where the switch is installed. The only
important point is that it must be the
same (!) phase, and that the switch is
approved for such 230 V applications.
The dimensions of the dimmer were
selected so that the circuit board
(diameter 55 mm, depth 16.5 mm) can be
installed without difficulty in a normal
recessed switch box.
It is even possible in some cases to
mount the board directly behind the
switch; however, if this is done, great
care must be taken to ensure appropriate
insulation and adequate heat dissipation.
Depending on the installation location,
the power handling capacity of 300 W
may be significantly reduced
An alternative would be to mount the
dimmer in a suitable housing, wherever
required, for example in a suspended
ceiling directly upstream from the
transformer. Adequate insulation and
heat dissipation facilities are again
important.
ELVjournal 5/99
The fully assembled PCB for the DI 300, viewed from the component side,
and the corresponding component mounting diagram
Fig. 7: Installation of the DI 300 dimmer
Phase switch-off
dimmer
Switch
Halogen
lamp
Electronic
transformer
Parts
switch
-
-
off dimmer
list
:
:
Phase
Resistors
:
:
0
/SMD…………….....BR1-BR6
10k /SMD…………….………R8
22k ……………...…..….R9-R11
47k /SMD……………...…R6,R7
560k …………………...……..R1
100k /SMD………….………..R5
1M ………..………………R2-R4
Capacitors
:
:
68pF/SMD………….……..C5,C6
100pF/SMD……..…...……….C2
4.7nF/SMD………..…...……..C3
100nF………………..……..…C1
100nF/SMD…………....……..C9
100μF/16V…………..……C4,C7
Semiconductors
:
:
HT1036/SMD…………………IC1
ELV99113/SMD………….…..IC2
SPP20N60SS……………..…..T1
BC848……………………….…T2
1N5407……………......…..D1-D4
ZPD3,9V/SMD……………..….D5
LL4148………………...………D6
ZPD10V/1.3W…………………D7
Miscellaneous
:
:
Ceramic oscillator, 455 kHZ.Q1
Mains screw terminals,
2-pin……….………...…KL1,KL2
Fuses, 2 A, slow-blow….….SI1
1 PCB fuse holder (2halves)
1 heatsink, SK 13
1 pan-head screw, M3 x 8 mm
1 nut, M3
1 fan-type lock washer, M3
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