Ripple Noise Measurement with High Definition Oscilloscope
Ripple Noise Measurement with High Definition Oscilloscope
Issue:
Ripple noise observation of a switching power supply is usually performed with AC coupling, but there may be times when you want to see the waveform including DC, such as when the output fluctuates greatly. At that time, conventional 8-bit oscilloscopes do not have sufficient resolution, making it difficult to capture noise. Some operators overdrive the waveform to capture it, but be careful as it distorts the waveform and makes it impossible to measure accurately.
Solution:
The DLM5000HD with 12-bit ADC has 16 times the vertical resolution compared to 8-bit oscilloscopes, making it ideal for such measurements. Also, a record length of up to 1 G points enables long time measurements at high sample rates.
Switching power supply output element overview
Observation of ripple noise (BW 100MHz, high-res mode)
Switching noise can be identified even in waveforms taken with DC coupling.
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DLM5000HD Series High-Definition Oscilloscope
The DLM5000HD High-Definition Oscilloscope from Yokogawa Test&Measurement is the new standard of high-definition oscilloscope.
- Frequency Bandwidth: < 500 MHz
- Sample Rate: < 2.5 GS/s
- Vertical Axis Resolution: 12 bit
- High Resolution Mode: < 16 bit
- Measurement Memory: < 1 G points
- History Waveforms: < 200,000
- Simultaneous Multi-Channel Measurements: < 32 bit logic + 8 channels
- < 16 channels with two connected DLM5000HDs via DLMsync
- Highly-Responsive, Intuitive 12.1in Touchscreen
- with Traditional Oscilloscope Control Panel
- IEEE1588 Synchronous Support
- Superior Noise Immunity
- Vehicle Serial Bus
- Additional Math Channels
- Extensive Voltage Ranges
- Compact, Light, Portable
Mixed Signal Oscilloscopes
- Yokogawa mixed signal oscilloscopes
- Simultaneous, time correlated observations
- Analysis of analog with digital (logic) signals
- Troubleshooting electrical anomalies, measuring parametric values, monitoring signals
Oscilloscopes
- Digital oscilloscopes
- High-speed sampling
- Range of bandwidths for electronic device design and development
- Advantages of oscilloscope and multi-channel data recorder
