SUMMARY
The Rigol DG1022 function generator emits a faint high-pitched sound when the voltage exceeds 2V peak to peak, which is a common occurrence in digital function generators. This sound, approximately 15 kHz, is likely due to hysteresis in the transformer of the switching power supply and does not indicate a malfunction. As long as the output waveforms remain accurate at the rated load and there are no overheating issues, this phenomenon is considered normal.
PREREQUISITES
- Understanding of function generator operation
- Familiarity with digital signal processing
- Basic knowledge of switching power supply design
- Experience with waveform analysis
NEXT STEPS
- Research the characteristics of digital function generators
- Explore the effects of transformer hysteresis in power supplies
- Learn about waveform integrity and measurement techniques
- Investigate common noise issues in electronic devices
USEFUL FOR
Electronics engineers, hobbyists working with function generators, and anyone troubleshooting or optimizing performance in digital signal applications.