[MPS Prize-giving Event] Share [PCB Design, Soldering] Problems or Experiences

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[MPS Prize-giving Event] Share [PCB Design, Soldering] Problems or Experiences [Copy link]

 

Welcome to the third stop of the MPS Exploration Camp "Serious Technology". Share PCB design, welding problems or experiences, and win a Xiaomi customized backpack that is both beautiful and popular!

[Event time] From now until April 30, 2023

[Participation method] Enter >> MPS Forum Battery Management Section , in the MPS Forum, with "【MPS Exploration Camp + Third Station】 + Title" as the theme, post a new thread, and share [PCB design, welding] problems or experiences. (How to post >> Click to view )

[Friendly reminder] After the event ends, MPS will select excellent posts based on the content of the posts and give away Xiaomi customized backpacks.

【Gift Setting】 Xiaomi Customized Backpack

lugl4313820

This pit is so deep that you can’t get out of it even in 10,000 years. Life is about falling into pits, climbing out of pits, sometimes digging pits, and sometimes watching others fall into pits. Pitfalls are everywhere.

leetoun

lugl4313820 published on 2023-2-6 17:15 This pit is so deep that you can't get out of it even in 10,000 years. Life is about falling into pits, climbing out of pits, sometimes digging pits, and sometimes watching others fall into pits. It's everywhere...

For example, we have recently been testing Black Sesame's in-vehicle control chip. When a colleague was testing the model processing unit and four Macs were running at the same time, it would die.

kangkls

I used 2596-5 before. According to the manual, there is no problem with 24 volts. I tested 12 volts first and found no problem, so I changed to 24 volts. As a result, it exploded directly, and the subsequent expensive sensors were also burned. It was painful.

Later I saw others using it and it worked fine. Thinking back carefully, I may have chosen the wrong inductor.

hzfei

Tunable diode laser absorption spectroscopy (TDLAS) is a technique that can be used to analyze gases in industrial applications.

laoyee

I would like to ask, for chips with relatively high power consumption and large size, but the application scenarios have certain requirements for size and power consumption, what are the advantages of MPS's battery management solution?

lightxixi

laoyee posted on 2023-2-12 13:47 May I ask, for chips with relatively high power consumption and large size, but the scene application has certain requirements for size and power consumption? MPS's battery management solutions have...

To participate in the event, you need to enter the >> Battery Management section of the MPS Forum and post a new thread to share your experiences, experiences, and interesting stories in [Chip Functional Testing or Structural Design].

lightxixi

hzfei published on 2023-2-10 09:10 Tunable diode laser absorption spectroscopy (TDLAS) technology is a technology that can be used in industrial applications to analyze gas LAS) technology is a technology that can be used in industrial applications...

To participate in the event, you need to enter the >> Battery Management section of the MPS Forum and post a new thread to share your experiences, experiences, and interesting stories in [Chip Functional Testing or Structural Design].

lightxixi

hzfei published on 2023-2-10 09:10 Tunable diode laser absorption spectroscopy (TDLAS) technology is a technology that can be used in industrial applications to analyze gas LAS) technology is a technology that can be used in industrial applications...

To participate in the event, you need to enter the >> Battery Management section of the MPS Forum and post a new thread to share your experiences, experiences, and interesting stories in [Chip Functional Testing or Structural Design].

lightxixi

kangkls posted on 2023-2-8 14:25 I have used 2596-5 before. According to the manual, there is no problem with 24 volts. I tested 12 volts first and found no problem, so I changed to 24 volts. As a result, it exploded directly...

To participate in the event, you need to enter the >> Battery Management section of the MPS Forum and post a new thread to share your experiences, experiences, and interesting stories in [Chip Functional Testing or Structural Design].

lightxixi

leetoun posted on 2023-2-8 14:15 For example, we are currently testing the Black Sesame vehicle control chip. When a colleague is testing the model processing unit and 4 Macs are running at the same time, it will die.

To participate in the event, you need to enter the >> Battery Management section of the MPS Forum and post a new thread to share your experiences, experiences, and interesting stories in [Chip Functional Testing or Structural Design].

懒猫爱飞

Good activity

meiyao

【MPS Exploration Camp + Third Stop】+ PCB Design and Welding

Sent

yxm_0626

When designing some compact instruments, each circuit is connected and fixed by solder pads. I feel like a carpenter drawing a circuit board with mortise and tenon joints. There are also many gaps on the circuit board to fix it to the plastic shell with bayonet. When installing the device, I have to consider whether the height of the components on the opposite circuit board interferes. I also have to worry about whether the test points and adjustment points can be conveniently tested and debugged. When making a product, I don’t talk about the function realization, but just draw the circuit board, and polish the vernier caliper to a bright shine.

程英茂

Hahaha, I got into a trap. I was testing an inverter cabinet at the time. The cabinet was 48V DC and powered 1,000 sets. I had just finished the test. The test team had something to do, so I came back and happened to test a 24V inverter cabinet. As you can guess, the powered capacitors exploded. Three of them were very loud, and they exploded one by one.

程英茂

When repairing the PLC cabinet, it took half a day to check and it would not start up. The reason was that the switching power supply was 24 volts, and one of the outputs was 110 volts DC, causing the back-stage protection. The repair measure was to replace the switching power supply, or connect two 24 volts DC in parallel to power the PLC.

程英茂

My headshot was taken when I was repairing a children's video car.

The cause of the fault was found, the SRC relay was burned out and had been repaired.

The machine will not boot up if it is not installed after removal. Install it and boot up.

Later it stopped moving because the motor circuit was worn out, and it was fixed by replacing the circuit.

程英茂

Another time, I repaired a video game motorcycle.

Is a DC power supply with a no output,

There happened to be a DC power supply that was not broken.

Same model video games, replacement method, repair.

saysay

I have never made a particularly large circuit board, so my experience is very simple. First, make a plan for alternative chip selection. Second, consider the openings and gaps for three repairs. Third, isolate the analog and digital circuits, power supplies, inductors, MOS, and high-power devices. Fourth, define the interchangeable solder joints and short circuits for user products. Fifth, leave enough deformation margin for chips and capacitors in high and low temperature conditions. PCBs require carefulness when they are boring and calmness when they are enjoyable.

hwy2004

Not seen