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参数资料
| 型号： | 545 |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, DMA25 |
| 文件页数： | 3/5页 |
| 文件大小： | 513K |
| 代理商： | 545 |
A
3
CALEX
FaxFACTS:
324
1997
Models 545 and 546 Voltsensors
http://www.calex.com
2401 Stanwell Drive
Concord, CA 94520-4841
(510) 687-4411 Fax (510) 687-3333
Operation
Set-Point Adjustment
The set-point voltages can be derived from any DC voltage
source. In adjusting the set-point voltages, it is best to start
with the high set at a high positive value and the low set at a
maximum negative value. This is done to prevent crossing
over (low above high). The high set voltage must always be
more positive than the low set voltage for proper operation.
On the mounting kits, there will be a jumper from the pot
wipers to the proper module pins. To operate with remotely-
set potentiometers on Models MK 376, 377, and 378, remove
the jumpers J1 and J3 and insert jumpers J2 and J4. On the
Model MK379, the high and low set points must be set on the
PC card rather than remotely.
Hysteresis
Hysteresis, or ON/OFF differential, is defined as a difference
in comparator switching point depending on input signal
direction (positive or negative). A small amount of hysteresis
is provided internally. To increase the hysteresis, connect a
resistor (approximately 220K) between the appropriate pins
(pin 13 or 14 for the high comparator and pin 4 to 3 for the low
comparator).
Grounding Considerations
Power Common (pin 29) and Signal Common (pin 24), are
connected internally, but noise is minimized by routing the
Power Common line directly to the common of the ±15V
power supply being used to power the Model 545.
Latching
The high comparator can be made to latch by connecting the
high comparator output (pin 13) to the high comparator latch
in (pin 15). This will cause the high comparator to remain in
the on state after it has once been tripped. The comparator
can be reset (unlatched) by opening the connection between
pins 13 and 15 or by temporarily removing power.
The low comparator can be made to latch in a similar manner.
Connect pin 4 to pin 2, and disconnect to reset. This circuit
also latches when switched to the on state.
For both comparators, the on state refers to one of two
conditions: (1) Where the output transistor is saturated (low
state) if the output is connected for current-sinking mode, or
(2) Where the output voltage is high if the output is connected
for current-sourcing. One advantage of the Model 545 and
546 Multifunction Voltsensor is that the high and low
comparators can be latched independently of each other and
independently of the output mode of operation.
Specifications
[1] The module operates from ±15V power, but the positive supply
connection to the output stages can be any voltage from +5V to
+32V. On the mounting kits, the supply voltage is committed to ±15V
and the relays are chosen for 15V operation.
FIGURE 9.
Outline Dimensions and Pin Assignments for Models 545/546
Shaded pins not installed. Shown for position only.
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相关代理商/技术参数 |
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|---|---|
| 545 16 064 00 | 功能描述:电源变压器 POWER TRANSFORMER RoHS:否 制造商:Triad Magnetics 功率额定值:12 VA 初级电压额定值:115 V / 230 V 次级电压额定值:12 V / 24 V 安装风格:SMD/SMT 一次绕组:Dual Primary Winding 二次绕组:Dual Secondary Winding 长度:2.5 in 宽度:2 in 高度:1.062 in |
| 545 23 225 00 | 制造商:Sumida Corporation 功能描述:POWER INDUCTOR UNSHIELDED |
| 545 23 320 00 | 制造商:Sumida Corporation 功能描述:- Tape and Reel |
| 545 24 027 00 | 制造商:Sumida Corporation 功能描述:POWER INDUCTOR UNSHIELDED |
| 545 BK078 | 功能描述:交流电源线 18AWG 3C UNSHLD 25PC PKG. BLACK RoHS:否 制造商:Schaffner 地区:North American 插头:NEMA 5-15P 插座:C13 Locking 功率额定值:2500 W 电流额定值:10 A 线规 - 美国线规（AWG）:18 电压额定值:250 V 长度:6 ft 屏蔽: 外壳颜色:Black |
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