Solar energy is the cleanest and most available renewable energy source. The Modern technology can harness this energy for a variety of uses, including producing electricity, providing light and heating water for…
OscBoardV12 is an open-source printed circuit board by shreya2717, from the shreya2717/Solar-Rooftop-Financing-Market-Risk-Analysis repository on GitHub. It is a 2-layer board of 98.2 × 47.9 mm with 114 parts on 170 nets, routed with 1,269 tracks and 120 vias.
It is built around the 74HC245D, ESP-12E and IR2113S, with the AMS1117-3.3, AT24CS32-SSHM-T and LM393 among its other parts. Its parts include 41 resistors, 33 capacitors, 11 connectors, 8 ICs and 8 diodes. It belongs with the ESP8266 and STM32 boards of this library.
Green Energy is an open source solar energy system.
Solar energy is the cleanest and most available renewable energy source. The Modern technology can harness this energy for a variety of uses, including producing electricity, providing light and heating water for domestic, commercial or industrial application.
The aim of this repository is to design and construct an off grid solar inverter system with mains charging function. The systen is broken into the following modules;
Oscillator Module:
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(i). oscBoard Complited, this board has fully been tested on 12v battery system.
Testing on 24V system is ongoing. for more infomation please dowload the manual DOC.rar
(ii). EGS002 proMAX 1 (atmega328P version) coming soon
(iii). EGS002 proMAX (stm32f103 version), this board has fully been tested on 12V and 24V battery system.
Power Inverter Module: Tested.
Display Module: Testes.
Current Sensor Module: Tested.
Power Supply Module: Tested.
Solar Charge Controller Module: Coming soon.
1.0 OSCILATOR / CONTROLLER BOARD
1.1 EGS002 proMAX (stm32f103 version)
The EGS002 proMAX module generates the sinusoidal pulse width modulated signal.
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Fig1 EGS002 proMax front view
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Fig2 EGS002 proMax back view
Main Controllers
EG8010 Chip: Generates the fundamental frequency of 50Hz for the inverter using sinusoidal pulse width modulation, with a modulation frequency of 23.4Khz.
STM32F103: Generates 50KHz for the boost converter, and also provides all the control function for the inverter.
PZEM004T: Provides all metering function for power management.
Specification
Fundamental frequency is 50Hz
Modulation frequency is 23.4KHz
Boost converter frequency is 50KHz
Unipolar Modulation
Constant current CC and constant voltage CV charging (bulk, absorption and float)
Charging control algorithm (P controller)
Inverter output voltage control algorithm (PI controller)
Short circuit protection (not tested yet)
Mains over voltage and under voltage protection
Inverter over voltage and under voltage cut-off
Serial LCD interface (modbus RTU)
User interface
TWI interface
Serial LCD interface (using UART or Modbus RTU)
Power ON/OFF switch interface
Programing Enable Interface (Boot0)
Debug Enable Interface
Configuration Enable Interface
Programing Interface (UART)
for more infomation on the EGS002 proMAX, please download the manual
Solar energy is the cleanest and most available renewable energy source. The Modern technology can harness this energy for a variety of uses, including producing electricity, providing light and heating water for…
Solar energy is the cleanest and most available renewable energy source. The Modern technology can harness this energy for a variety of uses, including producing electricity, providing light and heating water for…
Solar energy is the cleanest and most available renewable energy source. The Modern technology can harness this energy for a variety of uses, including producing electricity, providing light and heating water for…
I used hardware serial on pins GPIO15/GPIO13 and one pin for RTS from a GPIO5 Mini ESP board. In a 'normal' situation, the ESP12E only listens to communication between the remote and the heat pump, so you can have…
The KiCad Schematic and PCB Layout for a Half Bridge Class-D Audio Amplifier using an MH-M28 for inputting the audio via an audio jack or via bluetooth.
It measures 98.2 × 47.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OscBoardV12 use?
114 parts, built around the 74HC245D, ESP-12E, IR2113S and AMS1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the OscBoardV12 KiCad files?
From the shreya2717/Solar-Rooftop-Financing-Market-Risk-Analysis repository on GitHub, at the commit this page was made from: the board is oscBoardV1.2_circuit/oscBoardV1.2/oscBoardV12.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the OscBoardV12 design in my own project?
Its repository states no licence, so its author keeps all rights: ask shreya2717 before reusing the design.