Questions tagged [high-current]
Say how much current is required, high-current means different things to different people.
491 questions
0 votes
2 answers
92 views
High Voltage Shock Safety in Electroadhesion
I am working on an electroadhesive for a project this year, and I need to find some sources that I can cite for the safety of the high voltages involved. The high voltage converter that I was going to ...
- 1
2 votes
2 answers
160 views
Best Buck converter topology for high power charger?
I am designing a buck converter for a lead acid battery with an output current of 135 A and voltage from 108 V to 142 V in different CC and CV stages. The input voltage is 165 V from a Vienna ...
- 123
2 votes
2 answers
315 views
Is current booster for LM78xx valid for any Linear regulator?
The classical current booster for LM78xx/LM317 series is the use of a BJT in this way: Source I understand the principle of how it works. However, I have a doubt: can this work with any linear ...
- 166
1 vote
3 answers
440 views
High Voltage PCB for Electromagnetic accelerator / Coil-gun
I've been working on a coilgun/electromagnetic accelerator/Gauss cannon for the past few weeks, and I'm having serious trouble building a real physical circuit to test my coils. I'm charging the ...
0 votes
2 answers
79 views
Should I use tracks or copper pour for mains line connection between two points?
I am designing a relay PCB for an application rated upto 16A. The space is a constraint for me so for better connection, I used a copper pour for the line on the top layer and neutral on the bottom ...
- 9
1 vote
1 answer
50 views
Trace width calculator, current values shown
If I use a trace width calculator to find out the width of copper I would need for a specified current. Now for my situation I need 120-150A of current (peak), 40 - 50A continously. I am using a 4 ...
- 557
5 votes
3 answers
489 views
PCB trace width compared to wire gauge
If I have an application that takes 50A DC continuous, then the wire that I have to use 3 or 4 AWG wire. But on a PCB it is enough to use a 1 oz / sqft 70 mm width trace/polygon plane (KiCad trace ...
- 557
0 votes
1 answer
74 views
Current limiting device on solar system [closed]
I have an inverter that has charger controller inside, & the designers of the whole solar system overlooked current parameters. The current from the solar panel to inbuilt charge controller is ...
- 11
1 vote
1 answer
90 views
Mounting Hole Grounding Strategy for High-Current PCB With AC Earth and DC Ground
I'm working on my first PCB that integrates both an AC source (with protective earth/PE) and a DC ground plane (GND). This board is designed for high current (up to 10A), so good layout and grounding ...
- 21
6 votes
3 answers
1k views
Does hot melt glue damage wire insulation?
I'm planning to use hot melt glue to seal gaps in circuits to prevent short circuits. For example, one application where I might use it is fuse box (which might not be a good idea since cooling ...
- 2,168
2 votes
2 answers
153 views
What's the best affordable option for a low voltage high current power supply? [closed]
A specific component (hydrogen electrolyzer) requires 3.5-5V and 8-9A. D-cells drain fast and are not an efficient battery pack for this component. What are the options to deliver the specific voltage ...
- 29
0 votes
1 answer
142 views
Multiplexing large pulses
I’m working on a PCB at the moment which has a pulse generator which generates 20 V, 1 μs pulses. I need to send this pulse to many different endpoints on the board which will each pull between 20 mA ...
- 37
0 votes
1 answer
103 views
DCM Flyback Design secondary peak current is too high
I've started studying power electronics and am currently designing a 45W flyback converter with a 15V, 3A output. The input voltage can vary widely, from 20V to 120V. I'm following classical flyback ...
0 votes
0 answers
87 views
Gate Drivers for 100 SiCFETs in Parallel
I am trying to select a through-hole compatible gate driver that will control 100 SiCFETs (IMZA120R014M1H) in parallel. I am trying to determine the gate resistances as well. The total gate charge \$...
- 27
1 vote
1 answer
78 views
Large Headers for Voltage Converter Breakout Board
https://www.digikey.com/en/products/detail/flex-power-modules/BMR4920300-864/17830016?s=N4IgTCBcDaIEIFkBKAWAnGADAZk5g9ABwBsKIAugL5A I want to make a breakout board for this voltage converter, ideally ...
