HD scopes support development of automotive SiC power electronics
Next generation power electronics, used in vehicles, for example, can be supported by the DLM5000HD series high definition oscilloscopes. Yokogawa Test & Measurement said it is a high performance version of the DLM5000 series. The DLM5000HD series expands Yokogawa’s oscilloscope lineup with 500MHz and 350MHz frequency bandwidth models that deliver higher resolution.
The DLM5000HD follows the eight-channel mixed signal oscilloscopes and the DLM5000 series and addresses the increase in applications for, and production of. next-generation power devices utilising silicon carbide (SiC) technology which is driving the need for ever greater measurement precision. The DLM5000HD supports multi-channel measurement and improved resolution on the vertical axis, said Yokogawa.
The DLM5000HD series consists of two eight-channel models (500MHz DLM5058HD and 350MHz DLM5058HD) and two four-channel models (500MHz DLM5054HD and 350MHz DLM5034HD).
The models offer 12-bit vertical resolution that is 16 times higher than that of the existing DLM5000 series. The result is greater accuracy in waveform observation, said Yokogawa. This is particularly beneficial for developers of next-generation inverters, enabling the accurate observation of minute changes in high speed signals. It also allows the detection of phenomena that can cause unexpected anomalies.
The scopes also have a time-saving serial bus analysis auto-setup function, which automatically sets the optimal bit rate and threshold level. This can now also be used with previously captured waveforms for the auto-setup to be used for low frequency signals, improving the efficiency of in-vehicle bus development and evaluation work.
The DLM5000HD series is able to store up to one billion points of acquired data, which is twice that of the DLM5000 series. This allows users to store history data on up to 200,000 captured waveforms as history waveforms. This is double the number of waveforms that can be searched and compared using the long memory, enabling a single device being able to measure the behaviour of braking systems and other apparatuses that needs to be captured at a high sampling rate for several milliseconds.
Measurements can be captured with up to 16 analogue channels and 64 bits of logic (eight eight-bit logic channels) by using the dual-unit synchronous measurement (DLMsync) function to operate two eight-channel units. This allows the simultaneous measurement of both analogue and logic signals to, for example, analyse power-on sequences while debugging an electronic control unit.
The oscilloscopes can be used in car electronics systems, power electronics, such as electronic devices, inverters and power generation devices, household appliances and air conditioners and mechatronics such as industrial devices.
They can be used for the design and assessment of electric and electronic circuits, developing and debugging semiconductors, electronic devices, and embedded firmware, simultaneous measurement of analogue signals and bus signals based on the CAN, CAN FD and other in-vehicle standards, to analyse power and confirm the operation of power electronics and to simultaneously measure and assess high speed signals and fluctuating signals (for example, communication signals and mechatronics signals).