西門子電源板的工作原理： 1、通電后副電源先啟動工作，為主電路板微處理器控制系統(tǒng)提供正5伏的工作電壓。 2、開機后，副電源為PFC功率因數(shù)校正電路驅(qū)動控制電路UCC28051、主開關(guān)電源驅(qū)動巨制電路DLA001的提供 VCC—ON供電，主開關(guān)電源啟動工作，向主電路板負載電路提供正24伏和正12伏兩種電壓。 3、經(jīng)過抗干擾電路濾除市電中的雜波干擾，整流、PFC電感、濾波輸出300V直流電壓到副電源電路，副電源開始工作輸出+5v電壓。 4、經(jīng)西門子電源板輸出排插端口1腳到數(shù)字板CPU電路，CPU電路經(jīng)過讀取數(shù)據(jù)開機輸出高電平開機電壓。 5、經(jīng)西門子電源板排插端口2腳到電源板穩(wěn)壓開關(guān)機控制電路，開關(guān)機控制電路工作，輸出電壓到PFC振蕩電路，輸出高頻方渡脈沖推動PFC開關(guān)管工作，利用PFC電感產(chǎn)生的逆程脈沖。 6、經(jīng)過整流、濾波生成400V的PFC電壓。PFC電壓送到主電源電路和PFC電壓檢測電路，PFC檢測電路檢測到PFC電壓達到400V，PFC檢測開關(guān)電路輸出電壓到主電源震蕩電路，振蕩電路輸出高頻方波脈沖到主電源功率開關(guān)管電路。 7、開關(guān)管工作推動開關(guān)變壓器工作，從次級感應(yīng)輸出2組電壓，經(jīng)過整流、濾波輸出+12V、+24V電壓。到此，整個西門子電源板啟動過程完成。 8、電視待機時，采用切斷PFC功率因數(shù)校正電路驅(qū)動控制電路UCC28051、主開關(guān)電源驅(qū)動控制電路DLA00l的VCC—ON供電，主電源停止工作。
Opto 22 SNAP-AIV-I 2 Channel Isolated NEW
NEW OPTO 22 SNAP ANALOG VOLTAGE INPUT MODULE ±10,±5 VDC SNAP-AIV-I
NEW OPTO 22 SNAP-AIV-8 ANALOG INPUT MODULE 8 CHANNEL FOR SNAP PAC SYSTEM
SNAP-AIV OPTO 22 -10VDC TO +10VDC ANALOG INPUT MODULE
OPTO 22 SNAP ANALOG Part No. SNAP AIV 2 Channel Voltage Input
Opto 22 SNAP-AIV 2 Channel Analog Module
OPTO 22 SNAP-AIV NSFP SNAPAIV
OPTO 22 SNAP-AIV-8 NSFP SNAPAIV8
OPTO 22 SNAP-AIV-8 USPP SNAPAIV8
OPTO 22 RACK I/O MODULES SNAP ANALOG AITM AIV IDC5 FAST SNAPB3000 SNAPB12MC
OPTO 22 RACK I/O MODULES SNAP AIVRMS AIV AOV ODC5R ODC5SRC SNAPB3000 SNAPB12MC
OPTO 22 SNAP-AIV-72 USPP SNAPAIV72
ALFA-LAVAL LKB53A-6700-4A-E-S
NEW ALFA LAVAL LKB53 VALVE REPAIR KIT
Alfa Laval LKB53A-6000T BUTTERFLY VALVE 2-1/2"
ALFA LAVAL LKB53A-6000-1 1/2-E-316L *USED*
ALFA LAVAL LKB51A-2-1/2-E-S-G NSFP LKB51A212ESG
ALPHA LAVAL / TRI CLOVER LKB53A-6100TKT-3E-316L-R170236 3" S/S SANITARY VALVE
Mitsubishi Drive MDS-C1-V1-3535
From Canada
MITSUBISHI ELECTRIC MDS-B-V2-3535 SERVO DRIVE UNIT
Mitsubishi MDS-DH-V2-8040 Servo Drive Mazak
Mitsubishi Servo Drive MDS-B-V2-2020 MDSBV22020 Tested!
Mitsubishi Servo Drive MDS-C1-V2-2020 MDSC1V22020 Looks New!
Mitsubishi MELDAS SERVO DRIVE MDS A V2 2010 Mazak CNC
OFFER & WIN MITSUBISHI MDS-C1-V2-0303 Servo Drive Unit
From Poland
MITSUBISHI MDS-C1-V2-2010 XLT Fast Shpping
From Korea, South
Mitsubishi MAZAK SERVO Drive MDS B V2 3520 MDSBV23520 repair refurbishing
Mitsubishi MDS-C1-V2-3535 2 Axis AC Servo Drive 30 Day Warranty
NEW LIEBERT 4C13121G4S TEMP/HUMID SENSOR
LIEBERT 4C13121G-4 USPP 4C13121G4
NEW LIEBERT 4C13121G4S TEMP/HUMID SENSOR
? LIEBERT 4C12151G BOARD ? ? GREAT CONDITION ?
USED Liebert 4D14571G1 Assy Control Board PCB
Liebert 4C14651G 1 Rev.03 Fused Circuit Board Card
Liebert 4C13521G Mini Mate Control Circuit Board
LIEBERT 4C13451G USPP 4C13451G
LIEBERT 4C12681G USPP 4C12681G
LIEBERT 4C12151G USPP 4C12151G
NEW LIEBERT 4C13121G4S TEMP/HUMID SENSOR
LIEBERT 4C13121G-4 USPP 4C13121G4
NEW LIEBERT 4C13121G4S TEMP/HUMID SENSOR
Alfa Laval SC05-20B 976-020-001, Used, 976020001, Fast Shipping
From Sweden
Alfa Laval Valve *New* SRC-W-3A-3-7-20-J
10197 New-No Box, Alfa Laval 883-1551-020 Lot-20 O-Ring
ALFA LAVAL,SRC-W-3A-2.5-9-20H W/HD SPRING,PLUG VALVE
39783 New In box, Alfa Laval Seperation Inc 11742 Hex Sleeve Outlet, 20mm ID
ALFA LAVAL SRC-GC-3A-1.5-77-20 STAINLESS PNEUMATIC PLUG VALVE 1-4/10-1-1/2 75658
ALFA LAVAL SRC-GC-3A-1.5-77-20 STAINLESS PNEUMATIC PLUG VALVE 1-4/10-1-1/2 75657
Alfa Laval 316L 1 1/2" Tri Clamp Valve W/ 3/4" Opening #1-316L-RA20MAX-CWP150
ALFA-LAVAL SMU 2A SPEED MONITORING UNIT 551-131-20
Alfa Laval/Saunders Butterfly Valve MXMP112TC 20"
From Canada
NORTEL NT8E06AB 07 OC48 STM16
NORTEL NT8E06AB RLS 04
From Israel
NORTEL NT8E06AB FDN2400 RING DEMUX. Refurbished
NORTEL NT4T06AB DMS-10 NTWK EMPQAET1AA
Norb #NT8D06AB, Power Supply, NEW IN THE BOX!
NORTEL NETWORKS NTN430AA (HECI:SNC3MB06AB) EXPRESS DS1/VT MAPPER
Norb #NT8D06AB, Power Supply, Perfect condition, used, from working unit
Norb Meridian Power Supply Part# NT8D06AB Used
Norb NT2X06AB DMS-100 POWER CONVERTER COMM
Norb Meridian OC48 STM16 NT8E06AB 07 SNPQBR62AC RING DEMUX
NORTEL NT8E06AB 07 OC48 STM16
NORTEL NT8E06AB RLS 04
From Israel
NORTEL NT8E06AB FDN2400 RING DEMUX. Refurbished
NORTEL NT4T06AB DMS-10 NTWK EMPQAET1AA
Norb #NT8D06AB, Power Supply, NEW IN THE BOX!
NORTEL NETWORKS NTN430AA (HECI:SNC3MB06AB) EXPRESS DS1/VT MAPPER
Norb #NT8D06AB, Power Supply, Perfect condition, used, from working unit
Norb Meridian Power Supply Part# NT8D06AB Used
Norb NT2X06AB DMS-100 POWER CONVERTER COMM
Norb Meridian OC48 STM16 NT8E06AB 07 SNPQBR62AC RING DEMUX
NEW Honeywell Burner Control EC7890A1011 EC7890 A 1011
HONEYWELL EC7885-A-1011 BURNER CONTROL EC7885 A 1011 **FREE SHIPPING USA**
Honeywell Flame Burner Control EC7885-A-1011
HONEYWELL RM 7890 A 1031 BURNER CONTROLLER
Honeywell Burner Control RM7890 D 1004 RM7890D1004 Q7800A1005 14-Day Warranty
HoneyWell RELAY MODULE RM7890 A 1015 RECTIFICATION FLAME AMPLIFIER Q7800 A 1005
NEW HONEYWELL PRESSURE REGULATOR ASSEMBLY V5106A 1011 YG-24
Honeywell Fan Center R8239A 1011
HONEYWELL BURNER CONTROL EC7823A 1004 NEW
From Canada
(7989) Honeywell Burner Control RM7890A-1015 w/ R7847A1015 Flame Amplifier (7989
Honeywell V5106A 1011 Pressure Regulator NOS
Cognex ISM1400-00 // Series 1400 In Sight Micro 825-0007-2R // 821-0002-5R 59871
