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CPU-50GT/256-333-4-2信标激光发射模块为激光通讯链路的树立供应用来对准的信标光,为了便利激光发射和接纳部分的对准,要求信标光的光束具有较大的柬散角和较高的输出功率。 驱动部分是由基准电压源发生基准电压,然后将激光器(LD)输出电流改换为电压进行取样,经过反应环路与基准电压进行比较,使用反应量来操控驱动电流巨细,使供应激光器电流安稳,然后完结恒流操控;将检测二极管(PD)电流巨细反应给驱动,完结功率自动操控;温度操控部分是由内部热敏电阻经过电桥电路扩大供应后续的TEC电路,使用TEC处理芯片完结温度监测和操控。此外由脉冲信号源生成周期的时钟频率信号,作为发射模块操控频率,然后到达完结脉冲输出。
CPU-50GT/256-333-4-2激光器驱动电路规划,激光器驱动电路如图2所示,电路规划中,选用运算扩大器和自动增益操控电路。在该图中电路分红两个部分,图中的上半部分电路为脉冲驱动,下半部分电路为自动增益操控电压电路。
CPU-50GT/256-333-4-2在上半部分电路中,P1为SMA接头,选用50 Ω阻抗匹配将脉冲操控信号接入作为调制激光器驱动的调制信号,经过后续比较器和驱动电路完结开关操控。VD7为稳压二极管供应安稳电压,经过调整滑动变阻器来完结比较器负输入端参阅电压的设定。U8为MAX953集成芯片,内部集成了比较器和扩大器。在该部分规划中,经过比较器完结脉冲操控电压和参阅电压的比较,将比较信号送入后续由MAX953芯片内的扩大器构成的电压跟从器正向输入端。在电压跟从器的正向输入端外接参阅电压的上拉电阻相接,比较器输出开关信号来操控电压跟从器正向输入端的电压巨细完结开关功用,以便完结后续供应场效应管VQ10的敞开和导通,然后完结脉冲开光信号的全体操控。经过反应电压操控电压跟从器的上拉电压到达电流安稳驱动的意图。
在下半部分电路中,将恒电流反应或恒功率反应操控信号经过运放扩大,其间运放仍选用U10中的内部扩大器,将该运放作为电压跟从器,输出信号进入运放 U11A的正向输入端完结扩大。U11B为运放减法电路,将上级扩大输出信号与参阅电压进行比较输出,VD10为稳压二极管供应安稳电压,调整滑动变阻器 R77和R70构成的分压电路来完结比较器负输入端参阅电压的设定。在该部分电路规划中,自动增益操控电路中的扩大器选取带宽较窄、改换速度不能过快的扩大器为宜。因为调制频率为kHz数量级,因此带宽过大会有很大的噪声搅扰,为了使自动增益操控电压保持安稳,使该电压改换缓慢,所以选取改变速度较为缓慢的运算扩大器。R61为恒电流形式中的采样电阻,即它将LD的电流改换为电压信号,经过反应回路作为恒流操控信号,将该小信号扩大供应后续反应回路。 因为LD的输出功率与驱动电流有关,所以驱动电流的安稳性是决议LD的输出光功率安稳与否的一个关键因素。
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CPU-2CE/16
CPU-3CE/16
CPU-3CE/32-40-1
CPU-3CE/64-40-1
CPU-5CE/16-85-2
CPU-5CE/32-85-2
CPU-5CE/64-85-2
CPU-5TE/16-85-0
CPU-5V/64-100-2
CPU-5V/64-110-2
IOBP-10
CPU-8VT/64-170-2
CPU-20 Series
CPU-30BE
CPU-30ZBE
CPU-33XB
CPU-33XN
CPU-40B/16
CPU-40B/16-01
CPU-40B/16-02
CPU-40B/4
CPU-50/128-333-4-2
CPU-50/256-333-4-2
CPU-50GT/256-300-4-2
CPU-50GT/256-333-4-2
CPU-50T/256-300-4-2
CPU-50T/256-333-4-2
SCSI-BP4
CPU-60D/32/C3
6604E/16-200
CPCI-731
CPCI-761
IOBP-731
PMC860-40-E1-75
SCSI-BP4
IOBP-731
IOBP-10
IBC-20-1
SYS68K/PIO-1
CPCI-910
CPU-5V/64-110-2/C13
Force SPARC/CPU-10/128-1251 SPARC/CPU-10/128-1251H1 VME
Force SPARC CPU-5VT VME Board
FORCE SPARC CPU-3CE/16-40-1 P/N 501015 Network #B89
Force Sparc CPU-3CE/16 VME Processor Board
Force Sparc CPU-10/32 VME SBC computer board
Force Sparc CPU-2CE/16 VME SBC computer board with GPIB
Force CPCI-550 sparc/cpci-550
Force SPARC CPU-2s/32 VME SI 600-11573-201
FORCE SPARC CPU-5V CPU-5V/64-100-2 VME MAINFRAME. CARD
Force SPARC CPU-3CE/16 Network 501015 Board #F15
FORCE SPARC CPU-3CE/32-40-1 P/N 501016 Network #B90
FORCE SPARC CPU-5V CPU-5V/64-100-2 VME MAINFRAME. CARD
Force Sparc CPU-20VT VME SBC computer board
Force VME Sparc CPU Military Avionics
Force Sparc/CPU-10/128-51-1 B
FORCE SPARC CPU-3CE/8 NETWORK
FORCE SPARC CPU-10/9U BOARD
Force SPARC CPU-3CE/16-40-1 501015 Network Board #B61
FORCE SPARC CPU-5CE/16 VME SBUS MAINFRAME. CARD
Force SPARC CPU-3CE/16 Network 501015 Board #F16
Force Sparc/mem-50 213802 RevAA Memory Stick #F37
Force SPARC CPCI-523G 256-300-4-2 CompactPCI Card
Force Sparc/CPU-10/64-40-1
Force SYS68K CPU-30Lite
FORCE SYS68K DRAM VME BOARD MVME MAINFRAME. MOTOROLA
Force SYS68K/CPU-6 880-12537-101.A?2 LAM 810-17034-300-1
FORCE SYS68K SRAM-4A VME BOARD MVME MAINFRAME. MOTOROLA
Force SYS68K/CPU-6VB P/N 100611 LAM reseach 17034-3-C
FORCE SYS68K ISCSI-1 VME BOARD MVME MAINFRAME. MOTOROLA
FORCE COMPUTERS SYS68K CPU-6A
FORCE SYS68K CPU-2VF VME SINGLE BOARD COMPUTER MOTOROLA
FORCE SYS68K CPU-30BE/16 VME BOARD
Force SYS68K/SIO-2 P/N 310004
Force SYS68K CPU-33B/4 VME Board
Force SYS68K/SASI-1
FORCE CONTROL BOARD SYS68K ISI0-2/C2 (P/N 220062)
FORCE COMPUTER MODEL SYS68K SASI-1441 LAM REV A
FORCE COMPUTER CPU BOARD SYS68K CPU-1B NEW-NO BOX
Force SYS68K CPU30ZBE CPU-30ZBE CPU Module VMEbus VME
FORCE SYS68K CPU BOARD 310004 WORKING
Force SYS68K/CPU-33B/?4 VME Board CAT#: 510098
FORCE COMPUTERS SYS68K/CPU-6VA USPP SYS68KCPU6VA CIRCUIT CARD
BUS TRONIC FORCE SYS68K MAINFRAME. BOARDS NICE LOT
Force SYS68K/ISIO-2 I/O Controller Board PN: 310031
Force SYS68K ISIO-1 Serial I/O Board
BioRad SYS68K CPU-30ZBE FORCE 25MHZ VME CPU BOARD
FORCE COMPUTER VME BOARD MODEL SYS68K REV C
FORCE SYS68K ISIO-2 MODULE ASSY
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
Force SYS68K/CPU-33B/4 VME Board CAT#: 510098 PN: 600-1
Force SYS68K/CPU-30BE SYS68K/CPU-30BE?/16/C2 VME Module
Force SYS68K/CPU-33B/4 VME Board CAT#: 510098
Force SYS68K/ISIO-1FP I/O Controller Dual Board w Cable
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
FORCE PROCESSOR BOARD Model SYS68K ASCU-2
Force SYS68K/ISIO-2 I/O Controller Board PN: 310031
Force SPARC/CPU-10/128-1251 SPARC/CPU-10/12?8-1251H1 VME
A64520 Force Computers Sparc CPU-24VTF Board
Force CPCI-550 sparc/cpci-550
Force Sparc CPU-3CE/16 VME Processor Board
Force SPARC CPU-2s/32 VME SI 600-11573-201
FORCE SPARC CPU-5V CPU-5V/64-100-2 VME MAINFRAME. CARD
Force Sparc/CPU-10/12?8-51-1
FORCE SPARC CPU-5V CPU-5V/64-100-2 VME MAINFRAME. CARD
Force SPARC CPU-3CE/16-40-1 501015 Network Board #B61
FORCE SPARC CPU-3CE/16-40-1 P/N 501015 Network #B89
Mercury Themis Force VME Sparc CPU Military Avionics
FORCE SPARC CPU-3CE/32-40-1 P/N 501016 Network #B90
FORCE SPARC CPU-10/9U BOARD
FORCE SPARC CPU-3CE/32-40-1 P/N 00157-001 Network #B91
MOTOROLA FORCE SPARC CPU-5CE/16 VME SBUS MAINFRAME. CARD
FORCE SPARC CPU-3CE/8 NETWORK
Force SPARC CPCI-523G 256-300-4-2 CompactPCI Card
Force Sparc/CPU-10/64-40-1
Force SYS68K/CPU-6 880-12537-101.A2 LAM 810-17034-300-1
FORCE SYS68K CPU-2VF VME SINGLE BOARD COMPUTER MOTOROLA
Force SYS68K/CPU-6VB P/N 100611 LAM reseach 17034-3-C
FORCE SYS68K DRAM VME BOARD MVME MAINFRAME. MOTOROLA
Force SYS68K CPU-30
FORCE SYS68K SRAM-4A VME BOARD MVME MAINFRAME. MOTOROLA
FORCE COMPUTERS SYS68K CPU-6A
FORCE SYS68K CPU-30BE/16 VME BOARD
FORCE SYS68K ISCSI-1 VME BOARD MVME MAINFRAME. MOTOROLA
Force SYS68K ISIO-1 Serial I/O Board
FORCE COMPUTER CPU BOARD SYS68K CPU-1B NEW-NO BOX
Force SYS68K CPU-33B/4 VME Board
Force SYS68K/SIO-2 P/N 310004
Force SYS68K/SASI-1
FORCE SYS68K ISIO-2 MODULE ASSY
FORCE CONTROL BOARD SYS68K ISI0-2/C2 (P/N 220062)
FORCE COMPUTER VME BOARD MODEL SYS68K REV C
FORCE COMPUTERS SYS68K/CPU-6VA USPP SYS68KCPU6VA
FORCE COMPUTER MODEL SYS68K SASI-1441 LAM REV A B
FORCE SYS68K CPU BOARD 310004 WORKING
BUS TRONIC FORCE SYS68K MAINFRAME. BOARDS NICE LOT
Force SYS68K/CPU-33B/4 VME Board CAT#: 510098 PN: 600-1
FORCE SYS68K/CPU-30BE/8 REMOVED FROM BIORAD SYSTEM
Force SYS68K/ISIO-1FP I/O Controller Dual Board w Cable
Force SYS68K/CPU-30BE SYS68K/CPU-30BE?/16/C2 VME Module
Force SYS68K/CPU-33B/4 VME Board CAT#: 510098
Force SYS68K/ISIO-2 I/O Controller Board PN: 310031
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
Force SYS68K/ISIO-2 I/O Controller Board PN: 310031
FORCE PROCESSOR BOARD Model SYS68K ASCU-2
Force SYS68K CPU30ZBE CPU-30ZBE CPU Module VMEbus VME
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
Force SYS68K/CPU-33B/4 VME Board CAT#: 510098