Discrete Analog Capsense + CC Driver
PCB based capacitive sensing via AC division (heavy analog work!) and mixed signal routing. (all this for a clock)
2-Channel 500 MSPS Oscilloscope
AFE -> HMCAD1511 @ 500 MSPS/ch -> Artix-7 -> DDR3L -> USB 3.0
Marvin Tian
ECE @ Carnegie Mellon University
Hi! I’m a junior at Carnegie Mellon studying Electrical and Computer Engineering. I enjoy mixed signal circuit design, designing and (re)working PCBs, and tinkering with retro tech. In my spare time, I enjoy playing classical guitar and occasionally releasing magic smoke.
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projects
100W USB-C PD Driver Board
20V 5A with USB-C PD negotiation IC -> synchronous buck converter -> 12V 7A
Vacuum Fluorescent Display
A custom driver PCB and firmware for a Noritake Itron VFD from the 90s.
Handbells
An embedded project for Roboclub. A nontrivial SI problem solved the cheapest way possible (595 + 165)
ESP32-CAM Devboard Modification
Dev Board has an always-on camera (OV3660) that eats battery life. 11mA -> 500uA true sleep after mod
Sahara: A Project for 15-112
From-scratch game engine plus a taste of inverse kinematics, inspired by Rain World.
