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Electrical Engineering

Questions tagged [solar-cell]

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Solid state electrical device that converts the energy of light directly into electricity by the photovoltaic effect.

1,285 questions
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-2 votes
1 answer
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Is it possible for me to connect my solar panel (150W 18v 10A X4 in parallel) to a Boost converter (1500W 30A input voltage=12v-60v output voltage=10v-90v)then to my inverter (1500W 12v). No battery ...
e-library BHU's user avatar
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-1 votes
1 answer
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The PV cell can be modelled with a current source, a diode and 2 resistors. The following is the equation for single-diode model for a PV cell. Except I and V, every variables are constants like Iph = ...
Knowledge Drilling's user avatar
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2 votes
1 answer
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As part of a project, I have implemented a charger circuit based on the MCP73831 charge controller to keep a 3.7V Lithium Ion battery charged via a small solar panel (5V, 350mW max output): The + ...
erikor's user avatar
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3 votes
2 answers
173 views

So I want to make a direct powered (no battery charging) device that is powered in real time by a small solar cell array. So say the device runs at 3V up to 400 mA, but I want the solar panel to be ...
DaveC1964's user avatar
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0 votes
3 answers
138 views

My charging station DC spec is Wmax = 600W, Vmax = 60V, for 11-32V the supported current is 10A max, for 32-60V, the supported current is 12.5A max. It has an MPPT controller. My solar panel spec is ...
gavenkoa's user avatar
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0 votes
1 answer
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Please review my schematic for solar charger with BMS.
Krocan's user avatar
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0 votes
0 answers
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I am currently conducting solar cell characterization by measuring the IV curve. However, I am encountering an issue with the measurements where the resulting curve is not smooth, particularly with a ...
Annas Jogja's user avatar
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1 vote
0 answers
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I am building a small IV curve tracer for a solar cell using: Solar panel: 2.0 V, 130 mA, 4x4 cm ESP32 WROOM32U INA226 current/voltage monitor (0.1 Ω shunt, I²C) MCP4725 DAC (I²C, 5 V supply, through ...
Annas Jogja's user avatar
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11 votes
3 answers
1k views

How do solar microinverters prevent back-powering an electrical grid during a power company power failure?
Paul Turnquist's user avatar
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0 votes
2 answers
129 views

I am trying to design a simple charging circuit for my pcb however I am not sure if it is correct or makes sense so I am hoping someone with a bit more experience could help me. So I am using Solar ...
Naffa's user avatar
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0 votes
0 answers
89 views

I have a project for monitoring a PV Solar Panel of 100 W, Voc 22.0 V, Isc 6.14 A. It should be autonomous so I bought a LilyGO-T-SIM7000G that is basically a ESP32 with 4G, supports a battery and ...
Marcelo Frutos's user avatar
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0 answers
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I just started working on projects with ESP32 and stuff like that. I’m making a project that requires a solar panel system. My solar panel is 12V, and I have an 11.1V 2600mAh Li-ion battery, a 3S BMS ...
jojo 'S's user avatar
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0 answers
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I have built a small device that fits inside an Altoids tin because it neatly fits in your pocket. In the tin: Raspberry Pi Pico 2 W 2 x Solar panels 10F supercapacitor (to power device in the event ...
Shep's user avatar
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3 votes
1 answer
93 views

I am using a Seeed ESP32S3 WiFi board in a project to get various sensor readings and send them to Adafruit using MQTT as well as preforming some simple tasks. For two hours the ESP32 is in light ...
user4826471's user avatar
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1 vote
1 answer
140 views

I need to charge three car batteries with slightly different specifications from a single solar panel. Since I don't think I can connect the batteries together, I tried making the following wiring ...
colin's user avatar
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