I am trying to repair an AC-DC switching power supply with my basic knowledge of electronics. (220 v AC to 34v and 12v DC)
The problem seems to be the MOSFFET (10N60c), It shorts and then the fuse, a capacitor and some resistors blew.
It seems like I would be able to fix it, but the SMD...
Hi, I'm a beginner so please understand if I... you know... don't understand.
I have the attached circuit built and when I run the motor it works fine, but when the motor stops it (sometimes) resets the microcontroller. I know it is not too little current from the supply, but more likely the...
I didn't need one, but it came up on my "coins" page and I couldn't pass up the deal. $9.01 in discounts, reducing the price to less than $33. I paid closer to $40 for the other 2 I purchased.
I don't remember purchasing from this seller before. In the past, I've ordered low priced power...
I want to control two Peltier elements (up to 15V, max 6A each) with an Arduino. Right now, I am able to control them using PWM and a MOSFET (IRLZ44) to modulate an incoming constant voltage signal.
By varying the amplitude of the PWM signal at the Peltier, I recognized, that I...
Hello guys , i am a novice engineer and i have an old linear power supply for a video door phone system.
The P.S. has a 12VAC output (good) , a +15VDC output (bad) and a +18VDC (good). DC outputs share same GND.
The problem is when there is no load on GND and +15VDC output i measure a voltage...
Hello all, I have a Samsung washing machine noise filter that I think has gone bad, I will post a picture and I was hoping one of you could tell me if I was doing my testing correctly , sorry for the bad picture, I am drawing a diagram that will be flat and I will post it later, but my question...
Please advise me to get the best power source for the deadbolt / electronic gate lock system... I want to get the following:
- 12v Fixed voltage 2-3/+- volt no issue
- 2 amp peak when required at once
- Compact Size if possible
I am confused about using LED Driver 220vac...
Currently working on a project to design a personal transportation device and am in the process of teaching myself about motors, receivers, etc.
I am using 2 of these motors: https://www.digikey.com/en/products/detail/ebm-papst-inc/VG-ECI6340BK1-P63-1-5/9598038
But, I am struggling to figure...
I was sitting in front of my computer when suddenly my monitor (LG 49WL95C-W) turned off. I opened it and started troubleshooting. It looks like the power supply is the problem because if you connect it to power, the 3.15A fuse blows immediately.
I live in Germany and therefore...
Please can you help me someone? I'm out of ideas.
I am trying to make power supply for 12V 0.9A LED white chip dimming with ESP32S3 by 24V power supply. I use LM3404HVMA/NOPB. I progressed by this tutorial and change values by this calculator. So I have this schematic, but nothing happend. ESP...
I've got 12V, 20A, 240W SMPS (AC to DC) Power supply,
& I've attached single(1) Peltier Module (TEC- 12706) - 12V, 6A(Max) with that SMPS
But when I gave power to Peltier Module without Heat Sink via SMPS (Power Supply), it works for few seconds & then it stopped (Heating &...
What are the advantages of using a flyback converter in the power supply systems?
What are the complications that designer usually faces when flyback converter is used?
How is GaN based flyback converters different?
Srihari Rao M
I am trying to replace a battery powered circuit with a AC to DC adaptor circuit. I have a 5V adaptor but the device requirement is 1.5V. So, what is best way to reduce this voltage? Is using a resistor good enough? If so can you help me in understanding how to choose the value of resistor...
We need to calibrate a 12000W Xantrex Power Supply XDC 80-150, but the manual we have doesn't have the addendum which details this procedure. Am looking for folks who might have access to it or point us in the right direction.
I'm looking into this (attached) schematic for a bass amp.
I'm not sure, why the low voltage supply (+-16V) has his own transformer windings, regulators etc. but then it's connected to the hugh voltage rail? (I've circled in red)
Hi, this is my first post so, please advise if something is wrong.
I have 4 x 300W power supplies to wire up to 4 dev boards to drive some speakers.
my plan is to run from one plug to function box then out to the 4 power supplies. They are 24V 12.5A output. Each power supply goes to one dev...
I am building a device for a national competition ("Unge forskere") That should be able to sterilize hands with nothing but electricity.
For this project, I need a High-Voltage power supply, capable of delivering 12(or so)kV at 30-100khz.
Therefore my head automatically went to the very...