What causes voltage spikes when a switch bounces?
What causes voltage spikes when a switch bounces?
Oscilloscope capture of the LC voltage spikes caused by a large bouncing mechanical switch. The results can be even worse when a switch isn’t used at all and power is instead applied by touching a wire to a circuit or by plugging in connectors.
What causes a voltage spike on an oscilloscope?
Oscilloscope capture of the LC voltage spikes caused by a large bouncing mechanical switch. The results can be even worse when a switch isn’t used at all and power is instead applied by touching a wire to a circuit or by plugging in connectors. 5. Limiting the Magnitude of the LC Spikes
Are there electrical spikes that can destroy electronics?
However, the spikes can last long enough to destroy your electronics, so it’s definitely worth being aware of. The problem can be exacerbated by mechanical switch bouncing, which can introduce a new set of spikes with each bounce of the contacts.
How big is the LC spike on an oscilloscope?
Oscilloscope capture showing LC spike voltage (yellow) and current (green). There are several noteworthy features to the above traces. Most striking is the magnitude of the first spike, which at almost 40 V is more than three times the 12 V we were attempting to apply to the circuit. We also see that there are four peaks above 15 V.
Oscilloscope capture of the LC voltage spikes caused by a large bouncing mechanical switch. The results can be even worse when a switch isn’t used at all and power is instead applied by touching a wire to a circuit or by plugging in connectors.
However, the spikes can last long enough to destroy your electronics, so it’s definitely worth being aware of. The problem can be exacerbated by mechanical switch bouncing, which can introduce a new set of spikes with each bounce of the contacts.
Oscilloscope capture of the LC voltage spikes caused by a large bouncing mechanical switch. The results can be even worse when a switch isn’t used at all and power is instead applied by touching a wire to a circuit or by plugging in connectors. 5. Limiting the Magnitude of the LC Spikes
When to troubleshoot an unusual voltage system drop?
Troubleshooting for Unusual Voltage System Drops Usually, the first sign that your charging system is in trouble is a “battery,” “ALT,” or “CHARGE” warning light illuminating on your instrument panel while driving. It means that for some reason, the alternator has stopped charging the battery and your car is running on battery power.
