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LPQ252-CEF LDZ10501382西门子电源
LPQ252-CEF LDZ10501382西门子电源
LPQ252-CEF LDZ10501382西门子电源
LPQ252-CEF LDZ10501382 DC/DC变换是将可变的直流电压变换成固定的直流电压,也称为直流斩波。斩波器的工作方式有两种,一是脉宽调制方式Ts不变,改变ton(通用),二是频率调制(
(1)Buck电路——降压斩波器,其输出平均电压U0小于输入电压Ui,极性相同。
(2)Boost电路——升压斩波器,其输出平均电压U0大于输入电压Ui,极性相同。
(3)Buck-Boost电路——降压或升压斩波器,其输出平均电压U0大于或小于输入电压Ui,极性相反,电感传输。
(4)Cuk电路——降压或升压斩波器,其输出平均电压U0大于或小于输入电压Ui,极性相反,电容传输。还有Sepic、Zeta电路。
上述为非隔离型DC-DC变换器电路,隔离型DC-DC变换器有正激电路、反激电路、半桥电路、全桥电路、推挽电路。
当今软开关技术使得DC/DC发生了质的飞跃,美国VICOR公司设计制造的多种ECI软开关DC/DC变换器,其·大输出功率有300W、600W、800W等,相应的功率密度为(6.2、10、17)W/cm3,效率为(80~90)%。日本TDK-Lambda公司·新推出的一种采用软开关技术的高频开关电源模块RM系列,其开关频率为(200~300)kHz,功率密度已达到27W/cm3,采用同步整流器(MOSFET代替肖特基二极管),使整个电路效率提高到90%。
MDDLT55SF011 1
ABB,晶闸管安装/支架,材料号: HIES311665P0001
216-0BA00-2AC2 2个
MODEL AC-2 2
振动传感器PR9268/301-000EPRO 1只
7MH4950-2AA0 1
Q68DAIN 6
QD62D 6
QJ71E71-100 3
DLS-300-TYB 2
CP20-IO 铭牌
10-VPR-32C(D)-E 1
10-VPR-25C(D)-E 1
PARKER PV36-180B-BX2-B09 1个
43540 925023 25C 200个
ID503A 4
DC1040CL-311-000-E 1
HD-ST-A3-B3 4
7006565 (189140) 100
IN30-50HT-230EXT-T-5-PS-M 2
C113444 1'' Pulse Valve Diaphragm Repair Kit For ASCO SCG353A044 20
数字量输出端子板MTAB-32R11-0A10 2
数字量输入端子板MTAA-32R11-0A10 4
电源模块PSMU-350-3 1
电缆IB-C50G50D480020-SM05 6
Foxboro FCM2F2 1个
FR-E740-2.2KW 2
FR-E740-1.5 KW 2
FR-E740-3.7 KW 2
FR-E740-0.75 KW 2
BK0-CA1425-H03 1
A74GA15B 1
A74MA15B 1
RD0360A 380V 50HZ 1
6ES7288-1ST40-0AA1 15
SAS432443-02/IVISHN12002 4
100NHG00B-690 9
VW3A7102 1
型号:2SA7321-5EE20-4BB4-ZB58 SIPOS1
型号:2SA7321-2CE20-4DB4+LE5,16000N,750W,IP68 1.0
型号:2SA7321-2CE20-4DB4-Z,IP68 1.0
型号:2SA5021-5EE00-3BA3-ZB58,功率:750W;力矩:18-60Nm,IP68 1.0
R9 FAN kit D1751S24B8CP329/THB1724BG 4
HIES311665P0001数量10
Xycom 9465 KPM Flat Panel 9465-219114103500-U - Used
Xycom Automation Flat Panel Industrial PC 3612-0012110003002 KPM new
XYCOM 4850 USPP 4850
XYCOM Xycm-5012KPMT Operator Interface Screen 5012KPMT *NEW in Box*
XYCOM 9487 USPP 9487
XYCOM 9465-KPM USPP 9465KPM
Xycom 9450 Ind. Computer -27B1318010000 - Used
XYCOM 3200AC Operator Interface **NIB** # 1
Xycom Industrial Monitor 4150B FREE SHIPPING
XYCOM 9986-3338-1000 USPP 998633381000
Xycom 9450-0446614010000 38-K42IMA-01 - Used
XYCOM 9487-27B2118050000 USPP 948727B211805000
XYCOM 9487-2891319010000 USPP 9487289131901000
XYCOM 9487-47C2319011-000 USPP 948747C231901100
XYCOM XVME-674 NSFP XVME674
Xycom 1507-0142110001000 Operator Interface - Used
XYCOM 8320 USPP 8320
XYCOM XVME-675 CPU MODULE XVME675
XYCOM 4117T PANELVIEW 4117-0000000002001 *NEW*
XYCOM 3200AC Operator Interface **NIB** # 2
XYCOM 3512-A1A114103500S USPP 3512A1A114103500
Xycom 8450 98649 Industrial Computer USED
XYCOM MODEL 8320 P/N 94321-002 USED OPERATOR INTERFACE DISPLAY 8320
XYCOM 9465-0164141016006 USPP 9465016414101600
XYCOM 9450-723364-T USPP 9450723364T
XYCOM 9450-29H432G010000 USPP 945029H432G01000
XYCOM 9450-713316-T USPP 9450713316T
Harris Inserter NP200 Xycom 2000T Screen
XYCOM 3515-02M414103601Y USPP 351502M414103602
XYCOM 3512-A1F11400355 USPP 3512A1F11400355
XYCOM XVME-674 NSPP XVME674
Pro-face XYcom 4715KPM_4715-0011210110010_1300-512-CDW-F-2K_100-240 VAC, 1 Amp
XYCOM XVME-675 *NEW IN THE BOX*
XYCOM 3515-01L214103501X USPP 351501L214103501
XYCOM 9462-0132120016002 NSFP 9462013212001600
XYCOM 3515-A2H14003100V USPP 3515A2H14003100V
XYCOM 4105-91904-001 USPP 410591904001
Xycom Operator Interface Panel CRT 3515 KPM 3515-A1L214103100V 138605-098 B
XYCOM XVME-674 USPP XVME674
XYCOM 3515-02S314103901T USPP 351502S314103901
XYCOM 8320/94321-002 OPERATOR INTERFACE DISPLAY ***XLNT***
XYCOM 9450-2881318010000 Operator Interface Control Panel computer Option 51338
From China
XYCOM 98500-001 NSFP 98500001
XYCOM 3515T *USED*