PWM speed control board

Introduction: pwm speed control board

Schematic PCB

Resistance accuracy test board

Introduction: Suitable for multimeter resistance test

Schematic PCB

7377

Introduction: 7377 power amplifier, this PCB supports Bluetooth audio cable, the potentiometer can be separated

Schematic PCB

1875 amplifier

Introduction: 1875

Schematic PCB

TPA3116 dual 50-watt amplifier

Introduction: A 50-watt two-channel small power amplifier based on Texas Instruments' TPA3116D2DADR power amplifier chip. It is small in size and high in power. Working voltage 12~24V.

Schematic PCB

IP5389[100W two-way fast charging mobile power supply solution]

Introduction: 100W two-way fast charging mobile power solution

Schematic PCB

[Version 21700] IP5358 two-way multi-protocol fast charging mobile power supply/power bank

Introduction: A power bank solution suitable for four 21700 battery cells.

Schematic PCB

Simple 18650 battery charger, emergency power bank/power bank.

Introduction: Simple 18650 battery charger, emergency power bank/power bank

Schematic PCB

USB3.0 hub based on VL812

Introduction: USB3.0 hub design based on VL812

Schematic PCB

[Training Camp_Basic Class] FE1.1S One to Four Hub

Introduction: One-to-four hub design based on FE1.1S

Schematic PCB

USB Type-C PD development board

Introduction: FUSB302B (C132291) controller + INA226 (C49851) current detection, implements USB-PD protocol, can DIY wire detector, charger output capability detector, etc. And integrated QC3.0 manual deception circuit to test QC3.0 function

Schematic PCB

push-down magnetic levitation

Introduction: Push-down magnetic levitation based on operational amplifier

Schematic PCB

SSTC+PLLSSTC double TC composite board

Introduction: SSTC+PLLSSTC dual TC combined board. In the video, the power bridge and driver are powered by 12V. Because the power bridge and driver are isolated by GDT, the power bridge can accept rectified and filtered mains power.

Schematic PCB

QCW Dual E Class Arc Amplifier (Double E Tesla Coil)

Introduction: Dual E Class Tesla Coil

Schematic PCB

Based on 555 delayed starter copy

Introduction: Delay starter countdown to power on

Schematic PCB

ESP32 Minimal System Boardcopy

Introduction: The pin definitions are the same as the official board circuit, but the layout is slightly different.

Schematic PCB

STC8H_HID_Keyboard_RGB

Introduction: An STC8 USB RGB keyboard development board with four-way touch

Schematic PCB

Spot welding

Introduction: Supercapacitor welding machine-unfinished

Schematic PCB

Esp32_v1

Introduction: esp32 minimal board

Schematic PCB

dot matrix clock

Introduction: Say nothing

Schematic PCB