How to shut off Led on buck converter

In summary, it is possible to remove the LED or replace it by a better diode on a buck converter if it is not a relevant part of the converter.
  • #1
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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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  • #2
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?
 
  • #3
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.
 
  • #5
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.
 

1. How do I shut off the LED on a buck converter?

To shut off the LED on a buck converter, you can use a switch or control the input voltage to the LED driver. Alternatively, you can also use a transistor to control the LED's ground connection.

2. Can I shut off the LED without affecting the rest of the buck converter's operation?

Yes, you can shut off the LED without affecting the rest of the buck converter's operation. As long as you are not interfering with the input voltage or ground connection, the buck converter should continue to function normally.

3. Is it possible to adjust the brightness of the LED on a buck converter instead of shutting it off completely?

Yes, it is possible to adjust the brightness of the LED on a buck converter. You can do this by controlling the input voltage to the LED driver or by using a PWM signal to control the LED's ground connection.

4. Will shutting off the LED on a buck converter affect its efficiency?

Shutting off the LED on a buck converter should not significantly affect its efficiency. However, if you are using a switch to control the LED, there may be a small amount of power loss due to the switch's resistance. This can be minimized by using a high-quality switch with low resistance.

5. Are there any safety concerns when shutting off the LED on a buck converter?

There are generally no safety concerns when shutting off the LED on a buck converter. However, it is important to ensure that the input voltage and ground connections are properly controlled to avoid any potential hazards. Additionally, if you are using a switch, make sure it is rated for the appropriate voltage and current to prevent overheating or damage.

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