IP Library Granted Patent US 12676574
Granted Patent B2
US 12676574 · App. 18/350,236 · Granted Jul 7, 2026

Solar charger USB receiver for laptops

Inventors: Chinmay Somayajula (Boulder, CO); Nagesh Somayajula (Boulder, CO); Nagalakshmi Somayajula (Boulder, CO)
H02S40/34H01M10/465H02J7/35H02S40/38
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Quick Facts
Patent No.
US 12676574
App. No.
18/350,236
Granted
Jul 7, 2026
Kind
B2
Abstract

The present invention is a USB receiver charger for laptops consisting of four internal layers and two external layers. The external layers feature a thin photovoltaic (PV) panel that captures both sunlight and artificial light, integrated on both sides of the USB. Internally, the first layer houses high-powered LED COB lights, illuminating the second layer—the PV panel. The PV panel absorbs light, converting it into electrical energy stored in a rechargeable battery. Excess power is stored in a power bank. The rechargeable battery distributes the energy, powering the LED lights and transferring the remaining power to the device being charged. A solar charge controller, PV energy converter, and temperature controller are included to regulate power distribution and prevent overcharging. The LED lights dim when the power bank reaches maximum capacity to prevent unnecessary energy generation. The USB, equipped with three PV panels, generating minimum 25 watts for efficient laptop charging.

Claims (14)

1 . A USB receiver charger for laptops, comprising:

four internal layers and two external layers;

integrated thin photovoltaic (PV) panels on both external sides;

high-powered LED chip on board lights located within the USB receiver charger;

a PV panel capable of absorbing light and generating electrical energy;

a rechargeable battery for storing electrical energy;

a power bank for storing excess power;

a solar charge controller configured to regulate distribution of energy between the rechargeable battery and a device being charged;

a PV energy converter connected to the integrated thin PV panels; and a temperature controller for regulation;

wherein the high-powered LED chip on board lights are configured to automatically dim when the power bank reaches maximum capacity; and

wherein the USB receiver charger has a capacity to deliver a minimum of 25 watts of power for laptop charging.

2 . The USB receiver charger as claimed in claim 1 , wherein the integrated thin PV panels capture both sunlight and artificial light to convert into electrical energy efficiently.

3 . The USB receiver charger as claimed in claim 1 , wherein the USB receiver charger's internal layers are specifically designed to optimize the charging process and power distribution.

4 . The USB receiver charger as claimed in claim 1 , wherein the USB receiver charger's design enables the seamless integration of renewable energy sources for sustainable and portable laptop charging.