Mains overvoltage alarm circuit
Source: InternetPublisher:三岁就很酷 Keywords: Alarm circuit voltage regulator tube relay Updated: 2020/10/28
When the mains voltage
is overvoltage
(such as 240V), the voltage regulator tubes Vsl~VS4 break down, and the relay
KA absorbs and alarms.
- Making a photometer with light measuring function
- USB powered portable light
- Low illumination amplifier circuit
- Simple electronic doorbell circuit
- Lighting sound-activated switch circuit using thyristors Part 3
- Colorimeter circuit
- One of the circuits that control one light in multiple placesb
- Mains undervoltage and overvoltage alarm circuit 2
- 6-digit cathode fluorescent triode display circuit
- Night target display circuit diagram
- Verbal reversing alarm circuit (2)
- High voltage alarm circuit
- Household harmful gas alarm circuit
- Pulse beat monitoring sound and light alarm circuit
- Phase loss alarm circuit 3a
- Current transformer secondary open circuit alarm circuit
- One of the phase loss alarm circuits
- One of the three-phase AC power neutral line open circuit alarm circuits
- Power outage and incoming call alarm circuit 3
- Power outage alarm circuit 4