電源選型推薦

整個DTU系統(tǒng)的電源解決方案，主要考慮到不間斷供電的問題，所以需要雙電源供電的一個供電形式，主流的供電方式一般是有兩部分組成，一部分是大功率300W或者500W的AC/DC充電電源，這個電源一般兩路輸出，一路給后級的板卡進行供電，一方面給后級的蓄電池或者是超級電容進行充電；另外的一部分就是蓄電池或者超級電容，這個主要是在市電斷電的情況下，保證整個系統(tǒng)的正常運行。另外，電網對于EMC方面的要求比較苛刻，特別是浪涌方面，需要完全滿足4級的要求。主電源和蓄電池都掉電時，系統(tǒng)掉電保持時間500mS以上。

根據(jù)上面的應用描述，我們推薦選用金升陽MBP500-2A54D54的接線式電源，它具備電池充電功能，可對48V 鉛酸電池充電；工業(yè)級工作溫度：-40℃～+70℃；2500VAC 高隔離電壓；大瞬時過功率達540W；優(yōu)越的EMC性能；接線式安裝。

另外，如果鉛酸電池的電壓值為24V，還可以選用金升陽公司的MBP300-2A27D27的接線式電源，可對24V的鉛酸電池充電，穩(wěn)態(tài)功率達到351W。
電源是各種電子設備必不可缺的組成部分,其性能優(yōu)劣直接關系到電子設備的技術指標及能否安全可靠地工作。目前常用的直流穩(wěn)壓電源按功率管的工作方式分為線性電源和開關電源兩大類。線性穩(wěn)壓電源亦稱串聯(lián)調整式穩(wěn)壓電源,電路技術比較成熟。具有低紋波、高穩(wěn)壓性能等優(yōu)點。但由于必須使用工頻變壓器,且調整管工作在線性放大區(qū),因而體積大和重量大、效率低。開關電源調整管工作在高頻開關狀態(tài),功率損耗小,且使用小體積的高頻變壓器替代笨重的工頻變壓器來實現(xiàn)電壓變換和電網隔離。
為解決傳統(tǒng)的PWM型變換器的上述問題,可采用諧振、準諧振、多諧振以及具軟開關的PWM型變換器。這些變換器吸收、利用了PWM型變換器中的寄生參數(shù)或外加電感、電容作為諧振參數(shù),使變換器中的功率開關在零電壓或零電流下開通和關斷,開關兩端的電壓或經過開關的電流是正弦或半正弦波形。因此大大減少開關的瞬問損耗和開關應力以及電磁干擾和射頻干擾.使其工作頻率可進一步提高到1Mhz以上，效率達90%以上。再加上小型片狀電子元器件,包括磁性材科,例如:平板型變壓器等以及表面安裝技術以及散熱方式的改進，就使電源系列、標準化、模塊化成為現(xiàn)實。

New Honeywell R7847A1033 R7847 A 1033 Burner Controller
#50 Honeywell Measurex Edge Det Processor 05311400 Rev C
*NEW*  HONEYWELL    621-1180RC  115 VAC INPUT   60 DAY WARRANTY!
*NEW* HONEYWELL 621-1180RC 115 VAC INPUT 60 DAY WARRANTY!
~ Honeywell Screw Terminal Block Excel 800 Controller  XSU821-22 NIB    EC4-3
~ Honeywell Screw Terminal Block Excel 800 Controller XSU821-22 NIB EC4-3
?Yamatake Honeywell AZBIL J-DIM00 /??DHL shipping
1 PC  Honeywell 621-9939-C Link Module for Series 9000 In Good Condition
1 PC  Honeywell XCL5010 Controller Module In Good Condition
1 PC Honeywell 621-9939-C Link Module for Series 9000 In Good Condition
1 PC Honeywell XCL5010 Controller Module In Good Condition
1 PC New Honeywell DN65 ball valve B5011C0065
1 PC New Honeywell R4343E1014 Relay Flame Detecto In Box
1 PC New Honeywell R7849 A 1015
1 PC New Honeywell R7861 A 1026 Self Check Ultraviolet Flame Amplifier In Box
1 PC New Honeywell Voyager 1400G 2D Area-Imaging Scanner
1 PC Used Honeywell 621-9939-C Link Module for Series 9000 In Good Condition
1 PC Used Honeywell XCL5010 Controller Module In Good Condition
1 pcs  Honeywell  L404F1102 pressure controller
1 pcs  HONEYWELL  LSXA3K-1A Limit switch
1 pcs  HONEYWELL CP-WM-VAV control panel
1 PCS  Honeywell HC900 DCS 900P01-0001 Tested
1 pcs HONEYWEL BXA3K-1A Explosion-proof limit switch
1 pcs honeywell  129464N  Ultraviolet phototube
1 pcs honeywell  R7861A1026 Protection relay
1 pcs honeywell  V5011P1038
1 pcs honeywell 129464N Ultraviolet phototube
1 pcs honeywell C7035A1023  Flame Sensor
1 pcs honeywell C7035A1023 Flame Sensor
1 pcs HONEYWELL CP-WM-VAV control panel
1 PCS Honeywell HC900 DCS 900C53-0001 Module Tested
1 PCS Honeywell HC900 DCS 900G02-0001 in good condition
1 PCS Honeywell HC900 DCS 900P01-0001 Tested
1 pcs Honeywell L404F1102 pressure controller
1 pcs HONEYWELL LSXA3K-1A Limit switch
1 pcs honeywell R7849A1023
1 pcs honeywell R7861A1026 Protection relay
1 pcs honeywell TBC1800A1011
1 pcs honeywell V5011P1038
1 PCS NEW Honeywell Pressure Switch SN3-280-LED
1 PCS New IN BOX Honeywell Air Valve Actuator D20010 D20010
1 PCS NEW IN BOX Honeywell Flame Monitor R4343D1017
1 product rating- 1 PC New Honeywell R7861 A 1026 Self Check Ultraviolet Flame Amplifier In Box
1 product rating- 1 pcs Honeywell L404F1102 pressure controller
1 product rating- 100% Tested Honeywell 5010 XC5010C 60-Day Warranty [1ix]
1 product rating- 1PC Brand New Honeywell R7861A1026 Burner Controller DHL free shipping
1 product rating- 1PC New Brand Honeywell R7861 A 1026 One year warranty R7861A1026 Fast Delivery
1 product rating- 1PC New Honeywell 3310G scanning platb fixed barcode scanner free shipping
1 product rating- 1PC New Honeywell L404F1094
1 product rating- 1PC New Honeywell R7861 A 1026 Self Check Ultraviolet Flame Amplifier R7861A102
1 product rating- 1PC New Honeywell R7861A1026 Burner Controller 1 year warranty
1 product rating- 1PC New Honeywell R7861A1026 Burner Controller 1 year warranty#XR
1 product rating- 1PC New Honeywell R7861A1026 Burner Controller one year warranty fast delivery
1 product rating- 1PC New Honeywell R7861A1026 Burner Controller one year warranty free shipping
1 product rating- 1PC New Honeywell RF receiver module spare parts W8665E1000 1 year warranty#XR
1 product rating- 1PC New in box Honeywell R7861 A 1026 One year warranty R7861A1026 Fast Delivery
1 product rating- 1PC New LSN1A honeywell limit switch
1 product rating- 1pcs New Honeywell Pressure Controller L404F1102
1 product rating- Brand New Honeywell R7861A1026 Burner Controller DHL free shipping
1 product rating- EXCEL. HONEYWELL RM7838B1013 BURNER CONTROL R7861A1026,ST7800A1005,Q7800A1005,BV
1 product rating- Full Tested Honeywell 5010 XC5010C 60-Day Warranty [fkc]
1 product rating- HONEYWELL 113228 / 113228 (NEW IN BOX)
1 product rating- Honeywell 113228 Bulb
1 product rating- HONEYWELL 30756113-501 / 30756113501 (BRAND NEW)
1 product rating- HONEYWELL 3310G / 3310G (USED TESTED CLEANED)
1 product rating- HONEYWELL 3310G-4USB-0 / 3310G4USB0 (NEW IN BOX)
1 product rating- HONEYWELL 5495 / 5495 (USED TESTED CLEANED)
1 product rating- HONEYWELL 5881ENHC / 5881ENHC (NEW IN BOX)
1 product rating- HONEYWELL 620-0090 / 6200090 (USED TESTED CLEANED)
1 product rating- HONEYWELL 620-0090 ISSC IPC PLC MODULE CARD I/O RACK CHASSIS
1 product rating- HONEYWELL C7035A-1023 / C7035A1023 (BRAND NEW)
1 product rating- HONEYWELL FLAME SAFEGUARD RA890H1052 *USED*
1 product rating- HONEYWELL HM600XROF1 / HM600XROF1 (BRAND NEW)
1 product rating- HONEYWELL L4017B-1194 / L4017B1194 (USED TESTED CLEANED)
1 product rating- HONEYWELL L91B1035 / L91B1035 (BRAND NEW)
1 product rating- HONEYWELL L91B-1050 / L91B1050 (BRAND NEW)
1 product rating- HONEYWELL M8405A-1006 / M8405A1006 (BRAND NEW)
1 product rating- HONEYWELL M8405A1006 24V 3 POSITION DAMPER
1 product rating- Honeywell M8405a1006 Electric Actuator,25 In.-Lb.,24Vac
1 product rating- HONEYWELL M8405A1006 M8405A1006 24V 3 Position Damper
1 product rating- Honeywell M8405A1006/B 24 Vac Modulating Motor
1 product rating- Honeywell M9182A-1011 Modutrol IV Motor M9182A1011 Tested
1 product rating- HONEYWELL ML6174B-2019 / ML6174B2019 (BRAND NEW)
1 product rating- HONEYWELL MP953C1083 Mp953C1083 Valve Actuator
1 product rating- Honeywell MP953C1083 Valve Actuator
1 product rating- HONEYWELL MS4120A1209 / MS4120A1209 (BRAND NEW)
1 product rating- Honeywell MS4120A1209/U Honeywell Two Position Direct-Coupled Actuator
1 product rating- HONEYWELL MS4120F1006 Electric Actuator,-40 to 130F,SPST
1 product rating- HONEYWELL MS4120F1006, SPRING RETURN,TWO-POSITION 175 lb-in - FREE SHIPPING
1 product rating- Honeywell MS4120F1006/U Honeywell Fast-Acting, Actuator
1 product rating- HONEYWELL Q179A-1183 / Q179A1183 (BRAND NEW)
1 product rating- HONEYWELL R7847B-1031 / R7847B1031 (USED TESTED CLEANED)
1 product rating- Honeywell R7861A 1026 Industrial Control System NEW CIB - Free Shipping
1 product rating- HONEYWELL R7861A-1026 / R7861A1026 (USED TESTED CLEANED)
1 product rating- HONEYWELL RM7838 B 1013 ST7800A 1005,R7847C1005,dynamic Flame Burner ,HA
1 product rating- HONEYWELL RM7838 B 1013,ST7800A 1005,R7847 B 1031,dynamic Flame Burner ,SH
1 product rating- HONEYWELL RM7885A1015 BURNER CONTROL
1 product rating- Honeywell RM7890 B 1048 Primary Flame Safeguard Burner Boiler Control Relay
1 product rating- Honeywell RM7890 B 1048 Primary Flame Safeguard Burner Control Relay Module
1 product rating- HONEYWELL S87D1012 S87D1012 Dsi Control 11 Sec.
1 product rating- HONEYWELL S87K1008 / S87K1008 (BRAND NEW)
1 product rating- HONEYWELL SV9520H8513 / SV9520H8513 (BRAND NEW)
1 product rating- HONEYWELL T991A-1061 / T991A1061 (NEW IN BOX)
1 product rating- HONEYWELL UDC3000 TEMPERATURE CONTROLLER DC300K-E-0A0-21-0000-W
1 product rating- Honeywell V4055A1007 Low Pressure On/OFF Actuator Used on V5055/V5097A/B Valves
1 product rating- HONEYWELL V4943A1029 / V4943A1029 (BRAND NEW)
1 product rating- HONEYWELL V8944N-1012 / V8944N1012 (BRAND NEW)
1 product rating- Honeywell V8944N1012 Industrial Diaphragm Gas Valve
1 product rating- HONEYWELL Y8610-U-3003 / Y8610U3003 (NEW IN BOX)
1 product rating- Honeywell Y8610U6006 Electronic Retrofit Ignition System for LP or Natural Gas
1 product rating- NEW HONEYWELL MS4120F1006 DIRECT COUPLED ACTUATOR 2 POSITION
1 product rating- NEW IN BOX Honeywell R7861A1026 Burner Controller 1 year warranty
1 product rating- ONE USED Honeywell controllers PUL4024S USED
1 product rating- R7861A1026 Honeywell Burner Controller 1 Year Warranty New
1 product rating- S87D1012 Honeywell Dsi Module 11 Sec. Lockout OEM S87D1012
1 product rating- USED HONEYWELL BURNER CONTROL RM7823A1016,BOXZL
1 product rating- USED HONEYWELL M9182A-1011 MODUTROL IV MOTR M9182A1011
1 product rating- USED HONEYWELL RM7823 A 1016 BURNER CONTROL RM7823A1016
1 X CSNK591-001 CSNK591001 CSNK591 HONEYWELL CURRENT SENSOR NEW IN BOX
100% NEW Honeywell 113228 in box
100% NEW Honeywell 129464N in box
100% NEW Honeywell BC1000A0220U in box
100% NEW Honeywell BC1000A0220U/E in box
100% NEW Honeywell C7035A 1023 in box
100% NEW Honeywell H