elin – Page 2 – Random Fun only

Robogrinder: stm32g474 constant power converter and super capacitor

It’s an ongoing project for Robot development for Robogrinder: an undergraduate engineering design team at Virginia Tech that competes in the DJI RoboMaster University Championship.

This circuit board is a digital power converter for charging or discharging the super capacitor. STM32 g474 is used as the main controller to provide a precise wave (up to 5.4ghz) to switch MOSFET. Several OPAMP circuits provide the information of input current and voltage to MCU for PID and type3(improvement PID) algorithm.

This project is developed from an old project also for Robogrinder.

Robogrinder: two-stage buck-boost-boost DCDC converter with stm32g474, constant power enable

A super capacitor board is made for the competition as well. 10 super capacitors are implemented and safety circuits for each capacitor to prevent over-charging are on the board.

2022 年 11 月 13 日

4 H-bridge DC motor drivers

High-power DC motor driver which is implemented by H-bridges. N-Mosfet and MOSFET drivers are the main components of this circuit board. INputs from MCU are required for driving this board.

A maximum of 4 DC motors can be derived by this board. This project is for a driver for a drone that has 4 Mecanum wheels. Max power per motor is 120W.

2022 年 11 月 13 日

Robogrinder: two-stage buck-boost-boost DCDC converter with stm32g474, constant power enable

A project for developing super capacitor charger for Robogrinder.

2022 年 11 月 13 日

6s 18650 battery charge and discharge protection

A battery protection board. Include 6 18650 lithium batteries. Tested voltage 24v, 120w output is ok.

2022 年 11 月 13 日

Robogrinder: high-power DCDC buck converter and terminal adapter

It’s a finished project for Robot development for Robogrinder: an undergraduate engineering design team at Virginia Tech that competes in the DJI RoboMaster University Championship.

This project is aimed at providing power to mini-pc, ammo system, and gimbal system. These boards are used in the current competition. Details will not be talked about because of security reasons.