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參數(shù)資料
| 型號： | MIL-STD-1275B |
| 廠商： | SENSITRON SEMICONDUCTOR |
| 英文描述： | DC Solid State Power Controller Module |
| 中文描述： | 直流固態(tài)功率控制器模塊 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 511K |
| 代理商： | MIL-STD-1275B |
SENSITRON
SEMICONDUCTOR
TECHNICAL DATA
DATASHEET 4310, Rev B
Figure 4 - Electrical Block Diagram
221 West Industry Court Deer Park, NY 11729-4681 Phone (631) 586 7600 Fax (631) 242 9798
World Wide Web - http://www.sensitron.com
E-Mail Address - sales@sensitron.com
SPDXXD28 SERIES
Description
Figure 4 shows the block diagram of the SPDXXD28 SSPC Series. It uses a
SN74LVC3G14 device for digital
I/O. This TTL compatible device has a Schmitt-Trigger input to minimize the effects of noise on the input. Its
outputs can each drive more than 10 standard TTL loads. It’s also compatible with CMOS inputs and outputs.
The SN74LVC3G14 is isolated from the remainder of the module circuitry by three optocouplers.
The block labeled “Control & Protection Circuitry” gets power from the DC-DC converter and is referenced to the
output of the
SSPC
. This block contains an amplifier to gain up the voltage developed across the sense
resistor. It also contains a microcontroller with on-board timers, A/D converter, clock generator and independent
watchdog timer. The microcontroller implements a precision I
t protection curve as well as an Instant Trip
function to protect the wiring and to protect itself. It performs all of the functions of multiple analog comparators
and discrete logic in one high-reliability component.
The code programmed in the microcontroller acquires the output of the internal A/D converter, squares the
result and applies it to a simulated RC circuit. It checks the output of the simulated circuit to determine whether
or not to trip (turn off the power Mosfets). Because the microcontroller simulates an analog RC circuit, the
SSPC has ‘thermal memory’. That is, it trips faster if there had been current flowing prior to the overload than if
there hadn’t been current flowing. This behavior imitates thermal circuit breakers and better protects the
application’s wiring since the wiring cannot take as much an overload if current had been flowing prior to the
overload.
相關PDF資料 |
PDF描述 |
|---|---|
| MIL-STD-217F | DC Solid State Power Controller Module |
| MIL-STD-704F | DC Solid State Power Controller Module |
| MINI-MELF | Case No. MINI-MELF Device |
| MINI-SMA | Case No. MINI-SMA Device |
| MIW4021 | 5-6W, Ultra-Wide Input Range DIP, Single & Dual Output DC/DC Converters |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MIL-STD-1285 | 制造商:ITT 制造商全稱:ITT Industries 功能描述:CONNECTORS, ELECTRIC, RECTANGULAR, NONENVIRONMENTAL, MINIATURE, POLARIZED SHELL, RACK AND PANEL, GENERAL SPECIFCATION FOR |
| MIL-STD-1310 | 制造商: 功能描述: 制造商:undefined 功能描述: |
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| MIL-STD-1553B | 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:Universal MacAir/1553 Dumb RTU Hybrid PRELIMINARY DATA SHEET |
| MIL-STD-2003 | 制造商:LITEON 制造商全稱:Lite-On Technology Corporation 功能描述:Meet ROHS, Green Product Extra thin 0.30H mm Chip LED Extra bright A1InGaP Chip LED |
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