hi i have question, can we remove Output capacitor (decoupling) in SMPS circuits, so we can get pulses while charging?
Announcement
Collapse
No announcement yet.
SMPS for charger Car battery
Collapse
X
-
Re: SMPS for charger Car battery
You might be able to that but I would leave in C139 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *
These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%
1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board
All of these had CAPs POOF
All of the mosfet that are taken out by bad caps
-
Re: SMPS for charger Car battery
It will mess up the feedback signal feeding IC1 PIN 15. the steady DC output is also fed to the short circuit protection in Q6 section, and also feeds other circuits as well.
Why would you want to pulse charge in 50K ~ 100KHz?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
-
Re: SMPS for charger Car battery
Originally posted by budm View PostIt will mess up the feedback signal feeding IC1 PIN 15. the steady DC output is also fed to the short circuit protection in Q6 section, and also feeds other circuits as well.
Why would you want to pulse charge in 50K ~ 100KHz?
Comment
-
Re: SMPS for charger Car battery
Originally posted by frogz81 View PostCan we add Inductor and Decoupling Cap at Feed back path?(filter only at feedback path)
I also do not know if pulse charging at 50 ~ 100KHz will have any effect on de-sulfating or not. Do you know? Need to do more research.
You can try building some thing like this:
https://www.electronics-lab.com/proj...cid-batteries/
https://www.homemade-circuits.com/ba...uit-explained/
You can build this add on circuit which may be the best way to go without messing with the charger
Learning:
https://researchrepository.wvu.edu/c...26&context=etd
Notes:I did not look at the schematic to see if they are correct or not but at least it gives you the idea on how to pulse charge the batteries.Last edited by budm; 10-24-2020, 03:14 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
-
Re: SMPS for charger Car battery
Originally posted by budm View PostLook at the circuit, you can see the DC output V+ and V- are fed to other circuits as well, not juts the feedback circuit only.
I also do not know if pulse charging at 50 ~ 100KHz will have any effect on de-sulfating or not. Do you know? Need to do more research.
You can try building some thing like this:
https://www.electronics-lab.com/proj...cid-batteries/
https://www.homemade-circuits.com/ba...uit-explained/
You can build this add on circuit which may be the best way to go without messing with the charger
Learning:
https://researchrepository.wvu.edu/c...26&context=etd
Notes:I did not look at the schematic to see if they are correct or not but at least it gives you the idea on how to pulse charge the batteries.
Comment
-
Re: SMPS for charger Car battery
Please do the follow-up on this project, thanks.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
Comment