How to shut off Led on buck converter

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SUMMARY

The discussion focuses on addressing the issue of an LED on a buck converter draining battery power in a USB charger application. The specific buck converter referenced is a DC-Converter Step-Down Buck Module capable of 3A output. Users suggest potential solutions, including disconnecting the converter when not in use, removing the LED, or replacing it with a better diode. The need for a circuit diagram is emphasized for further clarity on modifications.

PREREQUISITES
  • Understanding of buck converters and their components
  • Basic knowledge of LED functionality and circuit design
  • Familiarity with soldering techniques for electronic modifications
  • Ability to read and interpret circuit diagrams
NEXT STEPS
  • Research how to safely remove or replace LEDs on electronic modules
  • Learn about diode specifications and their impact on circuit performance
  • Explore circuit design principles for low-power applications
  • Investigate the use of switches in electronic circuits for power management
USEFUL FOR

Electronics hobbyists, DIY enthusiasts, and anyone involved in power management for battery-operated devices will benefit from this discussion.

Puglife
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I am using a buck converter with a battery pack, for a usb charger. The issue is, is that the buck converter I have ( http://www.ebay.com/itm/DC-Converter-Step-Down-Buck-Module-7V-24V-to-5V-3A-5V-usb-output-power-adapt-/261030150117?hash=item3cc69bffe5:g:Q3UAAMXQTT9R0Qos ) has a led on it, which slowly drains the battery, so it loses its energy in about a day, without any load on the usb port, because of the led.

My question is, what can I do to stop this? Thank you so much for all of your help!
 
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Disconnect the buck converter if you don't use it?

If the LED is not a relevant part of the converter (as those converters use a diode, it might be), it might be possible to simply remove it, or replace it by a better diode. I don't know the circuit they use...
Are you sure it is the LED?
 
mfb said:
Disconnect the buck converter if you don't use it?

If the LED is not a relevant part of the converter (as those converters use a diode, it might be), it might be possible to simply remove it, or replace it by a better diode. I don't know the circuit they use...
Are you sure it is the LED?
well, it is a really small red light, that looks a lot like a square led, with that circular diode in the middle of it, I cannot afford switches at the moment, and was hoping if someone could confirm or deny me being able to remove it, or burn it with something.
 
A circuit plan would help.
 
mfb said:
A circuit plan would help.
I could find none, in the past few hours of searching, I will take your advice and put a switch in. Thanks for your time, I appreciate the help.
 

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