Power electronics & drives
Solar-pump VFDs, PMSM/BLDC sensorless FOC, inverters, chargers and DC-DC stages.
- SVPWM, SMO / observer-based sensorless control
- MOSFET / IGBT stages, gate drive, protection
- Supercapacitor and battery charging
Services
From idea to production board
Each engagement has a written scope, a definition of done and review gates before anything goes to the fab or the field.
Embedded firmware
Production firmware with field diagnostics and safe update paths.
- Qorvo PAC5xxx, TI C2000, STM32, ESP32
- Motor control loops, fault handling, RS-485 / Modbus
- Flashing tools with licensing and audit
LoRa, 4G & remote monitoring
Long-range links and monitoring systems that work beyond the lab.
- LoRa / LoRaWAN IN865, link budgets and range trials
- 4G (Quectel) remote monitoring units, MQTT / TLS
- Dashboards and device data back-ends
PCB design & review
KiCad schematics and layouts built to manufacturable rules, with independent pre-fab reviews.
- DRC to fab minimums, HV creepage checks
- EMC risk and SPICE checks before fab
- BOM costing, Gerbers, assembly files
Engineering software
Automation and analysis tools for engineering teams.
- CAD automation (single-line to three-line diagrams)
- Power-flow and hosting-capacity studies
- Applied ML for control and diagnostics
R&D mentoring & training
Building in-house engineering teams: structured bootcamps, design reviews and milestone tracking.
- Technical mentorship retainers
- Hands-on training on controllers and drives
- Workshops: MATLAB, motor control, embedded
Capability sheet
What we work with
A quick reference for engineering buyers. Ask for details on anything not listed.
| Area | Range / parts | Notes |
|---|---|---|
| Motor drives | 0.5–10 HP · DC bus to 900 V | PMSM / BLDC / induction; solar pumps to MNRE / KUSUM requirements |
| Controllers | PAC5250 · F2800137 · STM32 · ESP32 | Bare-metal and RTOS firmware, bootloaders, field flashing |
| Radio | 865–867 MHz LoRa · 4G LTE | Link budget, antenna matching, range trials, gateways |
| PCB | 2–4 layer · 1–2 oz copper | KiCad 10; THT or SMD; branded enclosures with antenna inside |
| Simulation | MATLAB/Simulink · ngspice · PLECS | Control design, power stages, pandapower / pvlib grid studies |
| Interfaces | RS-485 · Modbus · CAN · SPI · I²C | Displays: 7-segment, character LCD, graphic LCD, TFT |
Selected work
Built and in use
Client names are shared only with permission. Details are available on request under NDA.
Renewable energy · manufacturer
Universal solar-pump controller
Firmware and drive platform for solar water-pump VFDs from 0.5 to 10 HP, with self-learning motor start. More than 2,000 units running in the field.
Defence R&D
Supercapacitor engine cranking
24 V, 1200 F supercapacitor bank with fast charger for cranking large diesel engines, demonstrated on a 430 kW engine.
Industrial software · Japan
SLD to TLD conversion engine
Automatic conversion of substation single-line diagrams into three-line diagrams inside the client's CAD tool.
Electric vehicles
3.2 kW wireless EV charger
High-frequency full-bridge inductive charger for EV batteries, designed and verified in MATLAB/Simulink and ANSYS Simplorer.
Power utilities · research
Rooftop solar hosting capacity
Simulation platform that tests how much rooftop solar a distribution feeder can host before voltage or thermal limits.
Industrial IoT
Monitoring and display boards
CT-based energy monitors, UPS display and control boards, and remote monitoring units for solar installations.
Research to hardware
Published, then built
45+ papers, 500+ citations, h-index 11. Much of the work was implemented on real controllers and tested on real motors and radios. Full list on Google Scholar.
| Year | Hardware result | Venue |
|---|---|---|
| 2020 | Disturbance-observer-based sensorless control of PMSM with integral state feedback (190+ citations) | IEEE Trans. Power Electronics |
| 2015 | Speed control of PMSM with Hall sensors on DSP TMS320F2812 | IEEE PEDS, Sydney |
| 2015 | Hall-sensor fault detection and fault-tolerant PMSM drive | IEEE ICIC |
| 2016 | Implementation issues of sliding-mode observer for sensorless FOC on TMS320F2812 | IEEE SLED |
| 2017 | Vector control of PMSM on TI LaunchPad F28069 with MATLAB Embedded Coder | ICPS |
| 2019 | Fast charging of a supercapacitor bank with a high-frequency matrix converter | IEEE ICETAS |
| 2020 | Fuzzy-logic speed control of a PMDC motor on ATmega328P | IEEE Int. Conf. on Electronics, Computing & Communication |
| 2020–21 | LoRa water-quality monitoring and antenna-dependent LoRa range trials, deployed on a university campus | IEEE ICCCNT · IEEE ICCED · J. Phys. Conf. Ser. |
| 2021 | Lab-built colorimeter for hexavalent chromium detection | J. Phys. Conf. Ser. |
Workshops & FDPs
Recurring 3-day "MATLAB for Electrical Engineers" (IEEE Pune Section, University of Pune); FDPs on DSP TMS320F2812, MSP430, Arduino and EVs.
Industry certified
Honeywell PLC ML200R, RTU RC500 and Experion PKS; L&T switchgear & protection; FPGA Spartan-6; C/C++ (CMC, A+).
How we work
Gates, not guesses
Every board and firmware release passes the same sequence, so you know where the project stands at each step.
Scope
Requirements, constraints and a written definition of done.
Design
Architecture and calculations, signed off before any layout.
Build
Schematic, PCB and firmware to our fab and coding rules.
Review
An independent pre-fab review with evidence for every finding.
Test & hand over
Bench and field tests, documentation, training for your team.
About
Engineering with a research backbone
Aethertec Innovative Solutions was founded in 2018 by Hrishikesh R. Mehta, an electrical engineer (M.E. Power Systems) with more than 12 years in power electronics, motor control and embedded systems.
Our work runs from research prototypes for national R&D programmes to products made in thousands. Our published research, including work in IEEE Transactions on Power Electronics, feeds directly into the drives and controllers we build.
- Founded2018
- BaseBavdhan, Pune
- RegisteredMSME · GSTIN 27AUIPM1665P1ZY
- Publications45+ papers · h-index 11
- SectorsEnergy · Defence · Industry
Contact
Tell us what you are building
Send a short description of the product, the stage it is at and your timeline. We reply within two working days with questions or a proposal.
Email
info@aethertecinnovations.com
Phone
+91 98602 45338
Office
Bavdhan, Pune 411021, Maharashtra