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I've already built some prototypes of a circuit capable of switching a single 230 V, 16–30 A line to 4, 8, or 12 outputs—without power loss—but none of them have reached the standards I expect. I have schematics, calculations, thermal measurements, and test logs: enough material to clarify every technical detail and speed up your work. I need a senior designer who can transform all this into a final solution, complete with ESP32 firmware, a multilayer PCB (4 or 6 layers, JLCPCB production - 3oz copper), and an accurate and documented simulation before production. Technical requirements to be met: • Maximum energy efficiency, component protection, and precision switching under load. • Integrated remote control, real-time monitoring, and an alarm system. &b...

I have already fixed the cabinet envelope at 2000 mm wide × 700 mm deep × 2000 mm high and now need a full design package that will let me manufacture and source a multi-deck open chiller for the Saudi Arabian market. Your job is to turn that bare dimension set into a complete solution: select an appropriate refrigeration system that can cope with local ambient temperatures, recommend reputable brands that are readily available in the Kingdom, and present the whole assembly in a clean exploded view. What I expect from you • A 3-D CAD model of the chiller (SolidWorks, Inventor, or a compatible format) showing every major component. • An exploded drawing that makes the assembly sequence obvious to a fabricator. • A short technical note explaining why the chose...

Ho già costruito alcuni prototipi di un circuito in grado di commutare un’unica linea da 230 V, 16–30 A, verso 4, 8 o 12 uscite; --senza perdita di potenza--, nessuno, però, raggiunge ancora gli standard che mi aspetto. Dispongo di schemi, calcoli, misurazioni termiche e log di prova: materiale sufficiente per chiarire ogni dettaglio tecnico e velocizzare il tuo lavoro. Mi occorre un progettista senior che sappia trasformare tutto questo in una soluzione definitiva, completa di firmware su ESP32, con PCB multilayer (4 o 6 strati, produzione JLCPCB - copper 3once) e una simulazione accurata e documentata prima della produzione. Requisiti tecnici da rispettare • Massima efficienza energetica, protezione dei componenti e precisione nella commutazione sot...

I’ve drafted a single-layer board in Altium Designer and now need a seasoned set of eyes to run thorough simulations before I commit to building the first prototype. Your task is to import my project, verify the stack-up and component models, and perform all relevant electrical, thermal, and rule-check simulations available in Altium. Key goals • Confirm that signal integrity and power distribution meet design intent. • Flag any DRC or manufacturing issues early so I can correct them before fabrication. • Produce a concise simulation report summarizing the tests run, key plots or screenshots, and your recommendations. Deliverables 1. Updated Altium project files with all simulation settings preserved. 2. PDF or DOC report of findings and suggested fixes. ...

I am finalising a small retrofit application for an existing building in Düsseldorf and need a lean, no-frills bauphysikalische Stellungnahme that I can drop straight into the permit package. The core issue is Wärmeschutz; a quick eye on Schallschutz or Abdichtung is welcome only where it helps head off obvious objections, but the thermal side drives the brief. What I will send you: • Current plans (PDF/DWG) and material specs • Notes from the designer about planned interventions What I expect back: • A focused review of the existing insulation levels on the exterior Wände plus all Fenster und Türen, with U-value or thermal-bridge comments where relevant (DIN 4108 / GEG as anchors) • Practical, clearly ranked recommendations for improvement alongsi...