HA

Harsh Saini

@harsh-hw-dev

Embedded Systems | Hardware Design | EVSE & Power Electronics Enthusiast | ESP32 Developer

Noida NCR

Website

Joined October 2025

13 Followers

18 Following

AI Insights & Achievements

41/ 100

Growth

26 new projects with 156 stars.

Consistency

41 day streak.

Profile README

👋 Hi, I'm Harsh Saini

⚡ Embedded Systems • Power Electronics • High-Speed PCB Design Engineer

🧠 About Me

⚙️ Hardware Design Engineer specializing in power electronics, embedded systems, and multi-layer PCB design. I build production-grade hardware, not just prototypes.

🎓 B.Tech – Electronics & Communication Engineering
💼 1+ year hands-on industry experience
⚡ Core focus: SMPS, EVSE, BMS, Embedded Control
📐 Strong in signal integrity, EMI-safe PCB layout
🧠 Firmware + Hardware Co-Design (ESP32, STM32)
🎯 Goal: Become a world-class Power & High-Speed Hardware Engineer

🧰 Tools, Languages & Platforms

Altium Designer KiCad OrCAD ESP32

🏗️ Core Technical Strength

✔ PCB Design: 1L to 6L boards
✔ Power Electronics: Buck, Boost, Flyback, BMS, EVSE
✔ Embedded Systems: ESP32, STM32, UART, SPI, I2C, CAN
✔ Protection: OVP, UVLO, OCP, SCP, Reverse Polarity
✔ EMI/ESD: TVS, CM Chokes, Y-Caps, Stitching Vias
✔ Manufacturing: Gerbers, BOM, Pick & Place, DFM/DFA

🚀 Flagship Engineering Projects

⚡ 7.4 kW Single-Phase EVSE Power Board

230VAC → High-power AC load control
Isolated SMPS + Protection + Relay/Contactor Drive
EMI Filter + Surge + Grounding Strategy
Designed for AIS-138 / IEC Safety Concepts

⚡ 48V 16-Channel PWM Power Controller

ESP32-S3 based real-time PWM engine
MOSFET Gate Drive + Current Monitoring
Industrial connector system
EMI-safe power + control routing

🔋 Multi-Output Power Converter (12V → 5V & 3.3V)

Linear + Switching regulation
Load transient tested
Noise-optimized analog rail

🌐 ESP32 IoT Sensor Node

Wi-Fi telemetry + OTA firmware updates
Deep-sleep low-power optimization
Sensor front-end filtering

🧠 Analog Signal Conditioning Board

Precision op-amp amplification
Active low-pass & band-pass filtering
ADC-ready scaling and buffering

🧪 What I Actually Engineer

✔ Power stage calculations
✔ Inductor & MOSFET stress analysis
✔ Copper thickness & current density
✔ Return path & loop area minimization
✔ Impedance & crosstalk control
✔ Ground partitioning & stitching
✔ EMI failure debugging & fixes