Home > Basic Circuits >Sensor Circuits > Touch delay switch power supply circuit

Touch delay switch power supply circuit

Source: InternetPublisher:jikai233 Keywords: Touch delay switch switching power supply circuit Updated: 2020/11/20

54.<strong>Touch</strong><strong>Delay switch</strong>Power circuit.gif

Touch delay switch power supply circuit

Shown is the touch delay switch power supply circuit. When the hand touches the touch chip, it is equivalent to giving a trigger signal to the base of VT1 to turn it on
, so VI2 is also turned on, and the power supply charges the capacitor cz through VT2. When the charging voltage is high enough, VT2 is cut off, VT3 is turned on, and VT4 is
also turned on. Then it is turned on, and the bulb emits light and illuminates. When the charge on C2 is slowly released, vr3 is cut off. VT4 also cuts off causing the light bulb to go out.

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews


Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号