TqKcfEXJ6

touch desk lamp

Overview

Touch pwm dimming module using 8022W chip.

Thanks again to Jialichuang and Lichuang eda, which makes the drawing board and board making very simple and convenient. The pcb is very compact
using Lichuang eda to draw the board . The touch chip is powered by 2.4-5.5v. 78l05 is used here. Linear voltage regulator tube, because 78l05 generates a lot of heat under a large voltage difference, a voltage dividing resistor is added. My COB lamp bead is more than 30 volts. The measured working current of the touch chip is about 4ma. The voltage dividing resistor is about 4.7k. Oh, after the actual measured voltage division, the voltage regulator tube input is 11 volts, and it does not generate heat! Here you need to match the resistance value according to the power supply voltage, R=(vcc-5)/0.004. The picture below shows the chip function settings. The chip technical manual has been included in the attachment.

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-07-08 18:52:45

Watch foreigners teach you how to buy cheap components in China
[size=6]The following is from the wiki of a robotics association at the Imperial College. There are some tutorials on it. Suddenly I saw this and laughed. China is so powerful! ! I don’t need to trans
FreeUI Brief Introduction 1 Why to Reinvent the Wheel Yourself
[i=s]This post was last edited by Xin Xin on 2016-1-13 21:39[/i] I just checked Baidu, what a sin... I have never typed wow, why is such a good name already used by someone else, but, but... I really
Analysis of IC Testing Principles
[size=3] [/size][size=4]Chip Testing PrinciplesDiscuss the basic principles of chip testing during chip development and production. This article will discuss how to apply these principles to the testi
CSocket Assertion Error
I use CSocket to transfer files, and an assertion error occurs when receiving: socketcore.cpp, line: 1466. I looked at this file and the assertion is the assert(hEvent!=Null) in the OnSocketDead funct
Transplanting Qt Input Method on S3C2440
[align=center][b]Author: Fang Shiwen, lecturer of Wuhan Huaqian[/b][/align]Development platform: ubuntu 8.04 Target platform: S3c2440 Development tools: arm cross tool chain version EABI 4.3.3 Qt4 emb
6SIGMA Daily Learning 10 - 6SIGMA Organizational Structure

Datasheet More

Circuits More