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6604E/16-200 FORCE信標(biāo)激光發(fā)射模塊為激光通訊鏈路的建立供給用來(lái)對(duì)準(zhǔn)的信標(biāo)光,為了便當(dāng)激光發(fā)射和接收部分的對(duì)準(zhǔn),要求信標(biāo)光的光束具有較大的柬散角和較高的輸出功率。 驅(qū)動(dòng)部分是由基準(zhǔn)電壓源發(fā)作基準(zhǔn)電壓,然后將激光器(LD)輸出電流轉(zhuǎn)換為電壓進(jìn)行取樣,通過反響環(huán)路與基準(zhǔn)電壓進(jìn)行比較,運(yùn)用反響量來(lái)控制驅(qū)動(dòng)電流大小,使供給激光器電流安穩(wěn),然后結(jié)束恒流控制;將檢測(cè)二極管(PD)電流大小反響給驅(qū)動(dòng),結(jié)束功率自動(dòng)控制;溫度控制部分是由內(nèi)部熱敏電阻通過電橋電路擴(kuò)展供給后續(xù)的TEC電路,運(yùn)用TEC處理芯片結(jié)束溫度監(jiān)測(cè)和控制。此外由脈沖信號(hào)源生成必定周期的時(shí)鐘頻率信號(hào),作為發(fā)射模塊控制頻率,然后抵達(dá)結(jié)束脈沖輸出。
6604E/16-200 FORCE激光器驅(qū)動(dòng)電路規(guī)劃,激光器驅(qū)動(dòng)電路如圖2所示,電路規(guī)劃中,選用運(yùn)算擴(kuò)展器和自動(dòng)增益控制電路。在該圖中電路分紅兩個(gè)部分,圖中的上半部分電路為脈沖驅(qū)動(dòng),下半部分電路為自動(dòng)增益控制電壓電路。
6604E/16-200 FORCE在上半部分電路中,P1為SMA接頭,選用50 Ω阻抗匹配將脈沖控制信號(hào)接入作為調(diào)制激光器驅(qū)動(dòng)的調(diào)制信號(hào),通過后續(xù)比較器和驅(qū)動(dòng)電路結(jié)束開關(guān)控制。VD7為穩(wěn)壓二極管供給安穩(wěn)電壓,通過調(diào)整滑動(dòng)變阻器來(lái)結(jié)束比較器負(fù)輸入端參看電壓的設(shè)定。U8為MAX953集成芯片,內(nèi)部集成了比較器和擴(kuò)展器。在該部分規(guī)劃中,通過比較器結(jié)束脈沖控制電壓和參看電壓的比較,將比較信號(hào)送入后續(xù)由MAX953芯片內(nèi)的擴(kuò)展器
構(gòu)成的電壓隨從器正向輸入端。在電壓隨從器的正向輸入端外接參看電壓的上拉電阻相接,比較器輸出開關(guān)信號(hào)來(lái)控制電壓隨從器正向輸入端的電壓大小結(jié)束開關(guān)功用,以便結(jié)束后續(xù)供給場(chǎng)效應(yīng)管VQ10的打開和導(dǎo)通,然后結(jié)束脈沖開光信號(hào)的整體控制。通過反響電壓控制電壓隨從器的上拉電壓抵達(dá)電流安穩(wěn)驅(qū)動(dòng)的目的。
鄙人半部分電路中,將恒電流反響或恒功率反響控制信號(hào)通過運(yùn)放擴(kuò)展,其間運(yùn)放仍選用U10中的內(nèi)部擴(kuò)展器,將該運(yùn)放作為電壓隨從器,輸出信號(hào)進(jìn)入運(yùn)放 U11A的正向輸入端結(jié)束擴(kuò)展。U11B為運(yùn)放減法電路,將上級(jí)擴(kuò)展輸出信號(hào)與參看電壓進(jìn)行比較輸出,VD10為穩(wěn)壓二極管供給安穩(wěn)電壓,調(diào)整滑動(dòng)變阻器 R77和R70構(gòu)成的分壓電路來(lái)結(jié)束比較器負(fù)輸入端參看電壓的設(shè)定。在該部分電路規(guī)劃中,自動(dòng)增益控制電路中的擴(kuò)展器
選取帶寬較窄、轉(zhuǎn)換速度不能過快的擴(kuò)展器
為宜。由于調(diào)制頻率為kHz數(shù)量級(jí),因而帶寬過大會(huì)有很大的噪聲煩擾,為了使自動(dòng)增益控制電壓堅(jiān)持安穩(wěn),有必要使該電壓轉(zhuǎn)換緩慢,所以選取改動(dòng)速度較為緩慢的運(yùn)算擴(kuò)展器
。R61為恒電流方式中的采樣電阻,即它將LD的電流轉(zhuǎn)換為電壓信號(hào),通過反響回路作為恒流控制信號(hào),將該小信號(hào)擴(kuò)展供給后續(xù)反響回路。 由于LD的輸出功率與驅(qū)動(dòng)電流有關(guān),所以驅(qū)動(dòng)電流的安穩(wěn)性是抉擇LD的輸出光功率安穩(wěn)與否的一個(gè)關(guān)鍵因素。
用誠(chéng)信的心,真誠(chéng)的為您服務(wù)!
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