Lithium battery active balancing board 20s-ETA3000

Introduction: ETA3000 lithium battery balancing board design, with LED light indication function and TVS tube and freewheeling diode protection function

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Lithium battery protection board BYD0.0.1

Introduction: A maximum 20s lithium battery protection board made using BYD's BM3451 solution. The string number can be configured as 3-20s without equalization version. It can be used with another lithium battery active balancing board that I open source!

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HT16512_VFD_Demo

Introduction: VFD driver backplane based on HT16512, transformer-less power supply solution, VFD model is DL18-0615

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EPB-INBX32V3251DA_EQModule

Introduction: DIXT-1300-EXTREME board (EQ and filter module)

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EPB-INBX32V3251DA_ConPanel

Introduction: EPP-INBX32V3251DA board (control panel module)

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ZVS circuit DIY

Introduction: ZVS

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Circuit DIY driver board DRSSTC

Introduction: Circuit DIY driver board DRSSTC (non-fiber arc extinguishing)

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push-down magnetic levitation

Introduction: Push-down magnetic levitation based on operational amplifier

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hydroacoustic transmitter

Introduction: A garbage transmitter

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Spot welding

Introduction: Supercapacitor welding machine-unfinished

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Inkjet printer adjustable boost power supply/PD decoy + USB bus lead out

Introduction: A USB power supply + adjustable boost for inkjet printers

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LTC2172-14 Evaluation Board

Introduction: 4-channel high-speed and high-precision ADC evaluation board

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Three-string active balanced mini version

Introduction: A small-sized balanced version of three-string lithium batteries that can be inserted into a 12.6v hand drill battery pack. The balanced current reaches 300ma+@530mv under voltage difference. Based on the working principle, balancing can be achieved without limiting the variety of lithium batteries.

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5050RGBW driver controller

Introduction: A lithium battery-powered RGBW handheld fill light designed based on CN5611. It is battery-powered and USB dual-power supply design. Each channel is independently controlled and designed to facilitate parameter adjustment. The board has reserved expansion interfaces for later upgrade of microcontroller control.

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3.3V5V output buck module based on MT2492 (actual verification)

Introduction: DC-DC step-down module made using 2 pieces of MT2492.

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love flowing water lantern

Introduction: The love flowing water lamp drives the triode on and off through the charging and discharging characteristics of the capacitor, thereby lighting up the LED.

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[Nanjing Post and Telecommunications School Competition] Fourth-order band-pass filter

Introduction: This is a fourth-order bandpass filter. With an operational amplifier connected at the end of the filter, it can achieve more effective filtering. The operational amplifier at the end can compensate for the gain loss of some filter circuits.

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1969 Xiaojia amplifier

Introduction: Mono 1969 Xiaojia power amplifier adopts single point grounding and the output stage is TO220 TIP41.

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sstc arc extinguishing plate

Introduction: sstc arc extinguishing plate

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Single power supply TDA2030A power amplifier

Introduction: Simple 2030 amplifier

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