Hi. Thanks for posting your project about a 12V circuit for a thermostat. Please find below a summary of my proposal.
SCOPE OF THE WORK:
If I understand correctly, you look for a circuit to feed a thermostat with 12V pulses of the specified timing and phase, while the contacts are wired to a 220V floor heater.
In that case, I can design a simple 12V pulse generator, either self-timed or synchronized to the zero crossings of the Mains 220VAC.
The synchronization is done by an opto-coupler. The pulses are generated with logic gates so there is no need to use a microcontroller.
The entire board can include a 12V regulator or just an input for external 12V supply.
DELIVERABLES:
- Circuit diagram (.PDF)
- PCB manufacturing files (Gerber, pick & place, drill list, etc.)
- Bill of parts (.XLSX) with 3 vendor codes per part and confirmed stock.
- 3D CAD model of the board (.STEP)
- Render images of the board
BACKGROUND:
11+ years of experience in hardware design, including:
- Circuit design and simulation (Altium Designer)
- PCB layout design, high-speed and multilayer boards
- Managing PCB manufacturing, assembly, prototyping and global shipping
- Programming in C, C++, Arduino, Python, Pytorch, NumPy
Please check my portfolio with examples of past jobs. Hoping it will meet your requirements.
Looking forward to helping you with this project.
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Best Regards,
Gonzalo Perez, EE