Relay Re-Activating: Solve Problem Now | John

  • Thread starter Thread starter jbord39
  • Start date Start date
  • Tags Tags
    Relay
AI Thread Summary
The discussion centers on a relay circuit issue where the relay disengages approximately one minute after being activated. John reports that the relay remains off indefinitely once disengaged. The circuit involves a 100 uF capacitor that charges to 6 volts and discharges to 1.83 volts when the switch is pressed. Participants are asked to provide insights into potential causes for the relay's premature disengagement. Troubleshooting suggestions are likely to focus on capacitor behavior, relay specifications, or circuit design flaws.
jbord39
Messages
74
Reaction score
0
Hey guys,

I am using the following circuit to switch on/off another circuit.

toggle7.gif


The problem is that for some reason the relay will disengage about a minute after it is switched on (although it seems to remain off indefinitely).

Does anyone have any ideas for what could be causing this?

Thanks,

John
 
Engineering news on Phys.org
100 uF charges to 6 volt.

When switch is pressed, 100 uF discharges to 1.83 volt.
 

Thread 'How might electronics be different if AC voltage was 72V at 45 Hz?'

Hey guys. I have a question related to electricity and alternating current. Say an alien fictional society developed electricity, and settled on a standard like 73V AC current at 46 Hz. How would appliances be designed, and what impact would the lower frequency and voltage have on transformers, wiring, TVs, computers, LEDs, motors, and heating, assuming the laws of physics and technology are the same as on Earth?
View full post »

Thread 'What happens if shielded cable has a short to the shield?'

While I was rolling out a shielded cable, a though came to my mind - what happens to the current flow in the cable if there came a short between the wire and the shield in both ends of the cable? For simplicity, lets assume a 1-wire copper wire wrapped in an aluminum shield. The wire and the shield has the same cross section area. There are insulating material between them, and in both ends there is a short between them. My first thought, the total resistance of the cable would be reduced...
View full post »

Thread 'Why does the amperage go real high if there is a low voltage short?'

I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...
View full post »

Similar threads

Switching between parallel and series connections (solar)
Replies
31
Views
4K
Relay and Capacitor circuit - blinking LED
Replies
26
Views
6K
Solving Power Delivery Issues in a 5V Series Circuit with a 1.5V Rated Relay
Replies
12
Views
3K
Motorcycle starter safety circuit
Replies
11
Views
4K
Rounding down measured value in Arduino
Replies
5
Views
3K
How do you read the ratings of a relay?
Replies
4
Views
4K
Solving Relay Problem in Thermistor Controlled Comparator Circuit
Replies
2
Views
2K
Arduino and DC Solid State Relay 'Flicker'
Replies
5
Views
4K
Is using a darlington transistor pair the solution for my noisy relay switch?
Replies
8
Views
4K
Figuring out how a Relay circuit functions
Replies
4
Views
3K

Hot Threads

Recent Insights

Back
Top