- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄369265 > 71117 (Vishay Intertechnology,Inc.) SI9113 Demonstration Board PDF資料下載
參數(shù)資料
| 型號(hào)： | 71117 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | SI9113 Demonstration Board |
| 中文描述： | SI9113演示板 |
| 文件頁(yè)數(shù)： | 2/11頁(yè) |
| 文件大小： | 201K |
| 代理商： | 71117 |
Si9113DB
Vishay Siliconix
www.Vishay Siliconix.com FaxBack 408-970-5600
2
Document Number: 71117
29-Feb-00
The Si9113D1 and Si9113D2 are designed to operate in
discontinuous mode at nominal line and load conditions. Both
demo boards use the same operational procedure, as follows:
1
Visually inspect the PCB to be sure that all the components
are intact and no foreign substance is lying on the board.
2
Solder the leads at C1 negative and MOSFET Q1 drain to
monitor the drain waveform on the oscilloscope.
3
Reduce the source voltage to zero and connect it through
the dc ammeter at V
IN
+ and V
IN
–. Connect the dc
voltmeter precisely across V
IN
+ and V
IN
–. For the
application where input is of fixed polarity, the diode bridge
BR1 can be eliminated by shorting pin 1 to 4 and pin 2 to
3 to achieve even higher efficiency.
4
Connect the voltmeter precisely across V
OUT1
– Com1 and
V
OUT2
– Com2 for the output voltage measurement.
Connect the oscilloscope ground to C1 negative while the
probe to Q1 drain to observe the switching waveforms.
5
Slowly increase the input voltage while monitoring the input
current meter. Note the input current is less than 10 A at
18 V
IN
and continue to increase the voltage further till the
circuit turns on at approximately 24 V.
6
Set the input voltage to 48 V nominal and monitor the drain
waveform, switching frequency, input and output ripple and
noise.
7
The efficiency, line, load and cross regulation can be
measured by varing the line between 28 to 99 V, and the
load between 10% and 100%.
Drain Voltage and Current
The circuit is designed to operate in discontinuous mode at
nominal line and full load. The transformer is cleverly designed
to reduce the leakage inductance. Refer to Figure 1 for the
drain voltage and current waveforms. The current starting from
zero indicates the discontinuous mode operation and absence
of any leakage spike at drain shows the tight coupling between
the windings.
V
= 28 V
Outputs – Full lLoad
Ch1 – Primary Current (0.1A/div)
Ch3 – Drain Voltage (20 V/div)
FIGURE 1.
Drain Voltage and Current Waveform – Si9113D2
36.00
37.00
38.00
39.00
40.00
41.00
42.00
43.00
44.00
0
3.00
6.00
9.00
12.00
15.00
FIGURE 2.
V
OUT2
(40 V) Load/cross Regulation – Si9113D1
(
V
O
3.3 V @ 12 mA
3.3 V @ 120 mA
I
OUT2
(mA)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 71128 | Simple Solution for Dynamically Programming the Output Voltage of DC-DC Converters |
| 7126CPL | Low Power, 3 Digit A/D Converter |
| 7135CN | 4 1/2-DIGIT PRECISION ANALOG-TO-DIGITAL CONVERTERS |
| 715P | Polypropylene Film Capacitors ORANGE DROP, Low Loss |
| 715P39294J | Polypropylene Film Capacitors ORANGE DROP, Low Loss |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 71117000 | 制造商:DANAHER - TEKTRONIX 功能描述:MANUAL,TECH, INSTRUCTION, TMS855 HYPER TRANSPORT, |
| 71117-1214-7231 | 制造商:Molex 功能描述: |
| 71117501 | 制造商:DANAHER - TEKTRONIX 功能描述:MANUAL,TECH, INSTRUCTION,POWER MEASUREMENTS DESKEW FIXTURE,067-1478-00, |
| 7111760101 | 制造商:Amphenol PCD 功能描述:SINGLE WAY DATA BUS INTERCONNECT - Bag |
| 7111760102 | 制造商:Amphenol PCD 功能描述:SINGLE WAY DATA BUS INTERCONNECT - Bag |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。