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Annoyingly simple 555 problem
Sorted it! A combination of the diode (thanks BMNET) and experimenting with various capacitors across the motor terminals fixed the problem - I suspect a particualrly noisy motor. Thanks to all who answered.- TopRigger
- Post #9
- Forum: Power supply & electronic component design
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Annoyingly simple 555 problem
The output is driving a 12V SPST relay used to turn a 12V motor on/off. I have already added a flywheel diode across the relay coil for back EMF protection.- TopRigger
- Post #3
- Forum: Power supply & electronic component design
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Annoyingly simple 555 problem
Iv'e spent ages trying to solve what should be a ridiculously easy problem but it's got me stumped. A standard 555 monostable circuit, output drives a small relay that controls a small motor - it should turn on for 2.5 seconds when the 555 is triggered but just turns back off again - 555 doesn't...- TopRigger
- Thread
- Replies: 8
- Forum: Power supply & electronic component design
