- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄379211 > IL1815 (INTEGRAL JOINT STOCK COMPANY) AMPLIFIER IC FOR SENSORS WITH DIFFERENT CONDUCTANCE PDF資料下載
參數(shù)資料
| 型號(hào)： | IL1815 |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | AMPLIFIER IC FOR SENSORS WITH DIFFERENT CONDUCTANCE |
| 中文描述： | 放大器IC與不同電導(dǎo)傳感器 |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 195K |
| 代理商： | IL1815 |
IL1815
6
than 350 mV below ground level, current of input output 03 (right up to 3 mA) will be
sourced from supply output V
P
. If output V
P
is not shunted insufficiently from incoming
pulsation voltage, normal operation of the device on output V
P
will be disturbed. Similarly,
minor changes of ground potential appear on output 02 of the device, in consequence of
which, poor quality of equipment earth related to ground of input signal may cause
unreliable device operation. Thus, to ensure combined input voltage and frequency range
of IC operation it’s necessary to think over an adequate device ground connection and
avoid pulsations of supply voltage V
P
.
Limitation of input current.
As mentioned above, current limit for signal input (output 03) is ensured by the user by means
of external resistor R3 (fig.1). For applications where signal of input voltage is not symmetric
regarding ground the worst case of voltage peak may be calculated by the following formula:
R3
MIN
= (V
IN
peak) / 3 mA
In applied example shown in figure 1 ( when R3=18 KOhm ), recommended maximum input
signal voltage is
±
54 V (amplitude value).
Operation of sensor actuation (detection device) when crossing zero.
LM1815 is purposed for operation as sensor of crossing zero starting unit internal counting
when input signal negative half-wave (trailing edge) crosses zero. As against other sensors of
crossing zero, LM1815 can’t be started until input signal crosses switching threshold on positive
part of waveform, only afterwards electrical circuit is connected again. The following crossings of
zero are disregarded unless switching threshold is exceeded again. This switching threshold
changes depending on connection of output 05. There can be three different operation modes.
Mode 1, output 05 is not connected (open).
In this mode when amplitude of input signal more than typical value
±
75 mV and less than
±
135mV - typical value of switching threshold makes 45 mV. Under these conditions input signal
has to cross first 45 mV of switching threshold in positive direction in order to equip the sensor
of crossing zero, and then cross zero in negative direction to start it.
If signal amplitude is less than 30 mV (minimum in the range of electrical characteristics), short
pulse does not guarantee IC starting (switching).
Input signals with amplitude more than
±
230 mV ensure switching threshold of 80% (typical
value) of input voltage peak. Capacitor of peak detector in the device on output 07 stores
(memorizes) the value regarding positive input peaks determining switching threshold. Input
signals have to exceed this switching threshold in positive direction in order to equip sensor of
crossing zero which operates on negative wavefront (edge) of input signal.
Pulses of peak detector change quickly according to increase in amplitude of input signal and
attenuate owing to the property of externally connected to output 07 resistor, decreasing input
signal. In case when amplitude of input signal decreases quicker than voltage stored on the
capacitor of peak detector, output signal may decrease until the voltage on capacitor becomes
very minor, equal to the ground level.
Note that after input voltage is fixed, waveform observed on output 03 is not identical to the one
observed on variable reactive sensor. Just as voltage stored on output 07 is not identical to pulse
(variable) voltage appears on output 03.
Mode 2, output 05 is connected to V
P
.
Under this mode minimum amplitude of input signal is
±
200 mV. IC is started on negative wave
(edge) of input signal crossing zero, after switching threshold on positive wave (edge) of input
signal is exceeded.
(1)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IL1815D | AMPLIFIER IC FOR SENSORS WITH DIFFERENT CONDUCTANCE |
| IL1815N | AMPLIFIER IC FOR SENSORS WITH DIFFERENT CONDUCTANCE |
| IL19006 | THREE PHASE POWER/ENERGY METERING IC WITH INSTANTANEOUS PULSE OUTPUT |
| IL202 | Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP |
| IL203 | Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IL1815D | 制造商:INTEGRAL 制造商全稱(chēng):INTEGRAL 功能描述:AMPLIFIER IC FOR SENSORS WITH DIFFERENT CONDUCTANCE |
| IL1815N | 制造商:INTEGRAL 制造商全稱(chēng):INTEGRAL 功能描述:AMPLIFIER IC FOR SENSORS WITH DIFFERENT CONDUCTANCE |
| IL19006 | 制造商:INTEGRAL 制造商全稱(chēng):INTEGRAL 功能描述:THREE PHASE POWER/ENERGY METERING IC WITH INSTANTANEOUS PULSE OUTPUT |
| IL19-C20-H05-3150-200 | 制造商:Schaffner 功能描述:Power Cord with locking system, 250VAC, 50/60Hz, 16A 制造商:Schaffner 功能描述:Locking C19 IEC Cable 2M C20 IEC End |
| IL19-C20-SJT-3160-183 | 功能描述:6.0' (1.83m) Power Cord Black IEC 320-C20 To IEC 320-C19 SJT 制造商:schaffner emc inc. 系列:- 零件狀態(tài):有效 樣式:公頭插針（刀片）到插座（插槽） 第一連接器:IEC 320-C20 第二連接器:IEC 320-C19 導(dǎo)體數(shù):3 電線(xiàn)類(lèi)型:SJT 線(xiàn)規(guī):- 屏蔽:- 長(zhǎng)度:6.0'（1.83m） 認(rèn)證標(biāo)記:CSA，KEMA，PSE，RoHS，UR 認(rèn)證國(guó)家/地區(qū):加拿大，日本，荷蘭，英國(guó)，美國(guó) 顏色:黑 額定電壓:250V 額定電流:16A 工作溫度:-25°C ~ 70°C 特性:- 標(biāo)準(zhǔn)包裝:50 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。