Home > Optoelectronic Circuits >Optoelectronic Display Circuits > One of the power outage and incoming call alarm circuits

One of the power outage and incoming call alarm circuits

Source: InternetPublisher:赔钱虎 Keywords: Alarm circuit alarm potentiometer power supply Updated: 2020/02/25

74. One of the <strong>alarm circuits</strong> for power outages and incoming calls.gif

The alarm can automatically alarm when the mains power fails or when a call comes in, and the sound can last for 10 to 30
seconds. The alarm time is determined by potentiometers RP and C2.

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