tag:blogger.com,1999:blog-6356425659873504094.post981689871325449213..comments2023-03-08T13:01:59.659+05:00Comments on Making Electronics: PIR Motion sensor relay fast repairavrnoobhttp://www.blogger.com/profile/03442239095072309381noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-6356425659873504094.post-77904043605884259322017-07-06T06:18:45.604+05:002017-07-06T06:18:45.604+05:00Nope I have not had this issue before it died :) M...Nope I have not had this issue before it died :) Maybe there is not enough charge to switch relay or voltage dropdown happens when relay switched first time and ic resets.Anton Veretenenkohttps://www.blogger.com/profile/18150583438255070310noreply@blogger.comtag:blogger.com,1999:blog-6356425659873504094.post-31790527153626785472017-06-15T05:21:24.946+05:002017-06-15T05:21:24.946+05:00Just to let you know< i had measured the voltag...Just to let you know< i had measured the voltage at ref pin4 and it is good, 3.1V and there is nothing wrong with the power supply.Anonymoushttps://www.blogger.com/profile/09830629777253234338noreply@blogger.comtag:blogger.com,1999:blog-6356425659873504094.post-46488711175368782462017-06-15T05:19:09.955+05:002017-06-15T05:19:09.955+05:00I have bought 2 new PIR with these LP8072C to swit...I have bought 2 new PIR with these LP8072C to switch a transistor. When switch on main power, they sometimes immediately flickers on the relay for 3 times before stable down at off: on-off-on-off-on-off. The time between on off or off on are about 0.4 seconds apart.<br />As this is to switch an AC fluorescent lamp, this is very bad.<br />Do you have this problem?Anonymoushttps://www.blogger.com/profile/09830629777253234338noreply@blogger.com