Todays deals on Switch Mode?

Schneider Electric 499NSS25102 5 Port Unmanaged Switch (3TX – 2FX Single Mode) $2,256.00

MURR MCS40 85099 3 PHASE SWITCH MODE POWER SUPPLY 40A 24VDC TESTED!!! $699.99

Wago 787-854 Pro primary switch mode power supply 24V DC 40A $623.35

MURR ELEKTRONIK MPS10-230/24 SWITCH MODE POWER SUPPLY $549.99

Wago 787-835 EPSITRON PRO Primary switch mode power supply 48V DC 10A $545.26

Wago 787-844 Pro primary switch mode power supply 24V DC 40A $497.06

Nemic-Lambda RWS150A-24 Switch Mode Power Supply $454.00

Wago 787-845 EPSITRON PRO Primary switch mode power supply 48V DC 10A $471.03

Wago 787-852 Pro primary switch mode power supply 24V DC 20A $467.08

Mastech 30V 50A switchmode adjustable DC rectifier plating annodizing $419.95

Wago 787-831 EPSITRON PRO Primary switch mode Power Supply 48V DC 5 A $430.34

Wago 787-833 EPSITRON PRO Primary switch mode Power Supply 48V DC 5 A $430.34

Wago 787-850 Pro primary switch mode power supply 24V DC 10A $400.09

New Murr Electronik Switch Mode Power Supply MCS40 #85099 Free Shipping $400.00

MURR ELEKTRONIC SWITCH MODE POWER SUPPLY 85063 NEW MCS20-115-230/24 85063 $375.00

Wago 787-842 Pro primary switch mode power supply 24V DC 20A $385.93

Wago 787-821 EPSITRON PRO Primary switch mode Power Supply 12V DC 10A $385.00

Daiwa SS-505 Switch-Mode Power Supply 5-15VDC 50 Amps $379.95

Wago 787-633 Primary switch mode power supply units output voltage 48V DC 5 A $376.35

Wago 787-632 Primary switch mode Power Supply 24V DC 10A $370.56

Wago 787-832 EPSITRON PRO Primary switch mode power supply 24V DC 10A $329.78

TWINPACK PLUS SWITCH MODE RECTIFIER $290.00

PECO II 24VDC SWITCHMODE RECTIFIER * SM100F24P * $299.00

Wago 787-621 Primary switch mode power supply units output voltage 12V DC 8A $319.00

Wago 787-819 EPSITRON PRO Primary switch mode power supply 12V DC 15A $319.00

NEW In BOX EGS Sola/Hevi-Duty SDN 30-24-480 SWITCH MODE 24V NIB $315.50

MURR ELEKTRONIK MPS20-230/24 SWITCH MODE POWER SUPPLY SINGLE PHASE NIB $299.99

NEW Sola/Hevi-Duty SDN30-24-480 Power Supply SWITCH MODE, 24V NEW NO Box $298.50

0-30V 30A switchmode adjustable DC power supply plating $229.00

0-15V 60A switchmode adjustable DC power supply plating $229.00

ABB CP-S 24/5.0 Switch Mode Power Supply 110-240VAC 24VDC $277.49

Sola SDN 10-24-480 Power Supply 340-576VAC 3P to 24VDC 10A SWITCH MODE CONV. $274.99

OMRON Industrial Automation — Power Supply — # S8VS-24024, Switch Mode , 24V $250.00

ABB 1SVR427055R0000 SWITCH MODE POWER SUPPLY CP-T 24/10.0 NEW $249.99

MURR SWITCH MODE POWER SUPPLY MPS10-230/24 $229.99

BK Precision 1692 Switch Mode Power Supply 3V – 15V 40A $225.00

Lambda JWS100-12/A Single Output Power Supply, Switch Mode, 12V $220.00

ABB 1SVR427015R0100 Switch Mode Power Supply CP-S 24/10.0 New $195.00

OMRON S8VS-12024AP SWITCH MODE POWER SUPPLY 24V 120W w/INDICATOR – USED $212.00

NEW ARTESYN NFS40-7610 SWITCH MODE POWER SUPPLY 100-240VAC 1.2-0.6A 50/60HZ $199.99

Lambda Power Supply JWS150-24/A Switch Mode Variable Output (6510) $185.00

ABB CP-S 24/5.0 24v DC 5A switch mode power supply $185.00

0019-0015 Switch-Mode Power Supply 40A SPS-400M $196.00

Nortel MPR25 Switch Mode Rectifier $95.00

MURR ELEKTRONIK SWITCH MODE POWER SUPPLY $175.00

MURR SWITCH MODE POWER SUPPLY MPS20-230/24 SINGLE PHASE $148.00

DENSEI-LAMBDA # HWS100-24/A SWITCH MODE POWER SUPPLY $175.00

Omron S8JC-Z05024C Switch mode power supply, economical power Control system plc $180.00

USED Murr MCS20 Switch Mode Power Supply 1 Phase 24/20A $175.00

MURR 85084 SWITCH MODE POWER SUPPLY *SEALED* $175.00

50,BQ24740 Multi-Cell Synch Switch-mode Battery Charger $172.00

50pcs,BQ24740 Multi-Cell Synch. Switch-mode Battery $171.00

Murr Elektronik Switch Mode DC Power Supply 24V 85086 $156.74

MURR ELEKTRONIX SWITCH MODE POWER SUPPLY MCS-B1 85161 $150.00

USED Acme Electric DR1-2405 Switch Mode Power Supply $150.00

ABB CP-S 24/5.0 Switch Mode Power Supply 24V/DC 5A $139.00

MURR, MCS5 – 230/24, Switch Mode Power Supply, Single Phase. $99.99

0019-0013 Switch-Mode Power Supply (15A) SPS-150M $146.50

Murr Elektronik 85086 Switch Mode Power Supply $129.99

IFM EFECTOR DN2011 SWITCH-MODE POWER SUPPLY (1585) $132.99

ConnectPower 300W Switchmode POWER SUPPLY 991625 0024 Automation Weidmuller $139.99

NEW ASIAN ELECTRON YK-S1250E 500W POWER INVERTER SWITCH MODE MODIFIED SINE WAVE $109.99

Murr Switch Mode Power Supply 24VDC 10A 85086 $124.89

OMRON SWITCH MODE POWER SUPPLY S82K-09024 NEW S82K09024 $125.00

670-1330-00 Tektronix Horizontal Mode Switch Bank for R7704 $125.00

EMERSON ASTEC NETWORK POWER – LPQ112 – POWER SUPPLY, SWITCH MODE, 5V 19380015161 $117.98

Powersolve Power Adapter Switch Mode PSU SMPS Adaptor 12V DC 80W PSE80-12-09 $99.94

NIB ASTEC LPS155 SWITCH MODE POWER SUPPLY $125.00

MURR MCS5 85084 1 PHASE SWITCH MODE POWER SUPPLY 5A TESTED!! $89.99

Omron S82J-15024D1 100-120 Switch Mode Power Supply 24V $109.99

LAMBDA SWITCH MODE POWER-SUPPLY MODEL JWS150-5 , NEW $89.00

Lambda LWD30-0512 Switch Mode Power Supply $115.00

MURR MCS10 SWITCH MODE SUPPLY 85086 *NICE* $100.00

CARLO GAVAZZI – SPD12301 – POWER SUPPLY, SWITCH MODE, 12V $96.87

CARLO GAVAZZI – SPD24301 – POWER SUPPLY, SWITCH MODE, 24V $96.87

MURR Elektronik MCS20 Switch Mode Power Supply 115-230/4 $89.99

Used Omron S8PS05012CD Compact Switch Mode Power Supply $90.00

NEMIC LAMBDA HWS50-12/A POWER SUPPLY SWITCH MODE $99.99

Wago Switch Mode Power Supply 787-622_787622_50/60Hz_Input: 90-264V $99.00

110/220V AC to 12V DC 30A Switch Mode Power Supply $98.99

Omron Switch Mode Power Supplies 24VDC S82J-05024D $93.49

PR Switchmode Powersupply – See pictures and link. $40.00

25p,BQ24740 Multi-Cell Synch. Switch-mode Battery NEW $92.00

OKUMA OPERATION END MODE SWITCH E5420-ZZZ-003-1 E5420ZZZ0031 E5420 ZZZ 003 1 $90.00

OMRON S8VS-12024 POWER SUPPLY SWITCH MODE 24VDC 5A 100-240VAC 1.9A $89.99

Omron – S82J-15024D SWITCH MODE POWER SUPPLY – Very Nice! $75.99

MEAN WELL DR-120-24 NEW SWITCH MODE POWER SUPPLY DR12024 $75.00

Lambda Power Supply JWS50-24/A Switch Mode Variable Output (6681) $74.00

150 Watt Switchmode Power Supplies $58.30

USED MURR SWITCH MODE POWER SUPPLY MCS-10-115/24 MCS-10 $69.00

Powersolve Power Adapter Switch Mode PSU SMPS Adaptor 12V DC 15W PSE16A-12-01 $47.51

Sola HEVI Duty SDN4-24-100LP Power Supply, Switch MODE, 24V $63.95

Powersolve Switch Mode Power Supply Adapter PSU 24V DC 2.71A 65W PSGE65-24-04 $43.25

Powersolve Switch Mode Power Supply Adapter PSU 12V DC 5.42A 65W PSGE65-12-02 $43.25

Powersolve Switch Mode Power Supply Adapter PSU 12V DC 5.42A 65W PSGE65-12-01 $43.25

Powersolve Switch Mode Power Supply Adapter PSU 18V DC 3.61A 65W PSGE65-18-02 $43.25

Eaton Aviation Switch “WTHR MODE” Part #3721-216 NOS -Military NEW $65.00

20pcs,BQ24740 Multi-Cell Synch. Switch-mode Battery $70.55

Omron S82K-00712 100-240 Switch Mode Power Supply 12V $59.99

IMCON-INTEC Switch Mode Power Supply MPS-60EUS $50.00

Switch Mode Questions

Switching Power Supply Repair – Discover 3 Must Avoid Mistakes When Repairing SMPS

Before conducting a switching power supply repair work, there are a few mistakes that you MUST avoid!

Right now, we’re going to take a look at 3 of the most common mistakes that newbie technicians make when repairing switch mode power supplies or SMPS.

Heck, even seasoned technicians commit these mistakes as well…

How about you? Do you make these mistakes when conducting switching power supply repair?

Mistake #1

You lack experience but refuse to follow repair manuals that are presented in a step-by-step manner accompanied with lots of photos and examples.

You see, I know a few technicians who prefer to follow text-intensive SMPS repair manuals as their only reference guide. They say that manual with complete step-by-step photos are meant only for “beginners”.

I totally disagree! If you want to solve your SMPS problems as quickly as possible, then I suggest you refer repair manuals that are photo intensive. You’ll learn to fix SMPS a lot faster with that sort of manual.

Believe me, most text intensive repair manuals are very hard to follow!

Speaking of photo intensive repair manual, here’s one that’s pretty decent (271 pages)… Manual for repairing SMPS (please note that a new window will open)

Mistake #2

Shot circuit problem in the output line and you refuse to remove the components in that section one at a time. Don’t be lazy! I used to take ages to isolate problems in the output line because I was too lazy to troubleshoot one component at a time.

Trust me, with enough practice you’ll be able to remove the components and isolate the problem at lightning speed.

Taking shortcuts is not recommended when it comes to switching power supply repair…

Mistake #3

You replaced the power IC without checking it thoroughly. This is a pretty common problem and I did it a few times when I first began repairing SMPS units.

If you think the issue lies with the power FET for instance, I recommend you inspect the power IC properly before replacing it.

You can actually make your own IC testing tool. And then use this tester on the power IC to assess its condition.

Don’t simply replace because you’ll be wasting money if the power IC turns out to be in good condition.

Yes, you can learn how to build your own power IC AND also zener diode tester by following step-by-step guides that are packed together with the 271+ pages switching power supply repair manual.

Follow this link for download information: http://www.smpsrepair.info/

About the Author

Jerry Gazila

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