revnarwhal
New member
- Joined
- Apr 8, 2019
- Messages
- 9
I have this lab thing that I talked about in a past post.
Basic Power Configuration
Here is the most generic version of my question:
How do I stop my battery pack from energizingthe LED on theDC-DC StepDownBuck that is supposed to be regulating the voltage from the Laptop Power Supply, and how do I do so without reducing the charging amperage greatly?
Attached is the closest thing I can provide as a drawing. Please never mind the markings on some of the listed componentsas they arein place to represent the type of component, not a specific version/model of that component. The diode I am usingis actually a 10A10 (which can allow up to 10A through it). Therelay I am usingis able to withstand coil voltage within the rangeof the Laptop Power Supplies I have as well as amperage higher thanwhat the Buck can withstand.
I've heard people say things like MOSFET and shunts and some other random assortments of letters... I'm learning as fast as I can andas I find things I don't know, but generally this just proves out how much I still need to know. Any advise or guidance about how to accomplish the simple goal
Thank you for your assistance
Basic Power Configuration
- Laptop Power Supply which goes through...
- DC-DC Step Down Buckset to 16.8V which goes to...
- BMS managing 18650 4S5P pack whichgoes to...
- Power Switch which goes to the load
- DC-DC Step Down 5VVoltage Regulatorpowering aRaspberry Pi 3B+
- DC-DC Step DownBuck setto 9V powering anArduino Mega
- LCD Controller Board connect to LCD Screen
Here is the most generic version of my question:
How do I stop my battery pack from energizingthe LED on theDC-DC StepDownBuck that is supposed to be regulating the voltage from the Laptop Power Supply, and how do I do so without reducing the charging amperage greatly?
Attached is the closest thing I can provide as a drawing. Please never mind the markings on some of the listed componentsas they arein place to represent the type of component, not a specific version/model of that component. The diode I am usingis actually a 10A10 (which can allow up to 10A through it). Therelay I am usingis able to withstand coil voltage within the rangeof the Laptop Power Supplies I have as well as amperage higher thanwhat the Buck can withstand.
I've heard people say things like MOSFET and shunts and some other random assortments of letters... I'm learning as fast as I can andas I find things I don't know, but generally this just proves out how much I still need to know. Any advise or guidance about how to accomplish the simple goal
Thank you for your assistance