Hello
It is a noob question. I am trying to repair my garden solar lights and they have a small very simple circuit with something that most likely is a voltage booster.
I tested the output produced from the system and it is only 0.5V or so which is obviously too little to power the LEDs. So for me, it looks like the booster is broken. I thought of replacing it but there is not a number on the part. Would you have an idea of what it could be? Picture attached.
Thank you
krzys
In reply to What is the specification of the solar light? by Sourav Gupta
Thank you Sourav
Solar panel output is 5-6V and the battery is LiMH 1.2V.
LEDs switch on with more than 5V applied.
BEst
The IC number is QX5253. It is a switchable IC that requires three components only, an inductor, a LDR and one Resistor. This works with 2.5V LEDs.
The IC number is - QX5253. You can search google for more info.
This is my best guess.
Sourav Gupta
Joined February 12, 2018 696Monday at 02:11 PM
What is the specification of the solar light? Input voltage? LED voltage or current?
The circuit uses an inductor, therefore this is may be a switching regulator used for LED. No capacitors are attached.
Could you provide the image of the PCB bottom.