12bit oscilloscope tech targets power designs
Teledyne LeCroy has launched a series of high definition 12bit oscillloscopes for power applications.
The WaveRunner 8000HD High Definition Oscilloscope (HDO), the MDA 8000HD Motor Drive Analyzer (MDA), and OscilloSYNC technology are aimed at designers of high-power inverters and motor drives, such as electric vehicle (EV) propulsion drives, vehicle non-propulsion drives, and solar photovoltaic (PV) inverters that require an accurate understanding of system power under varying loads.
At the same time, designers of embedded systems found in power conversion systems, consumer electronics, mobile devices, and automotive electronics must validate complex power distribution networks (PDNs). Both designers must correlate a significant number of power, sensor, and control events.
The WaveRunner 8000HD uses Teledyne LeCroy’s HD4096 technology to provide 12bit resolution all the time across 8 channels, up to a market-leading 2 GHz of bandwidth and offers five times more memory than any other oscilloscope. The combination of 12-bit vertical resolution and high bandwidth enable better visibility into high-speed signal details. The higher channel count and long memory permit more signals to be captured over a longer period.
“With more signals, sensor inputs and power rails than ever, engineers need oscilloscopes with lower noise and more channels, resolution, bandwidth, and acquisition memory to understand and debug the tangle of tightly coupled signal interactions,” said Tyler Cox, General Manager at Teledyne LeCroy’s Oscilloscope Business Unit. “The WaveRunner 8000HD oscilloscope allows engineers to address these complex power conversion, embedded control system and power integrity issues.”
Like its predecessors, the WaveRunner 8000HD contains an industry-leading, powerful and deep toolbox for analysis of electronic signals. Combined with HD4096TM High Definition technology, WaveRunner 8000HD oscilloscopes provide the most comprehensive and efficient debug and validation solution for complex electronic designs.
The MDA 8000HD motor drive analyzer combines the capabilities of a power analyzer with those of an oscilloscope. In this case, the MDA 8000HD uses the WaveRunner 8000HD platform for unprecedented channel counts, memory depth, sample rates and bandwidth. The MDA adds the ability to perform comprehensive static and dynamic 3-phase electrical and mechanical power analysis for complete test coverage of the entire motor-drive system.
“Ubiquitous and growing in complexity, motors and drives are increasingly optimized for dynamic operating conditions,” said Kenneth Johnson, Director of Product Marketing at Teledyne LeCroy. “Traditional power analyzer instruments have not kept up with industry needs for dynamic power analysis. At the same time, oscilloscopes have been the traditional tool for gaining insight into embedded control system operation. The two instruments historically have operated in different domains, making it difficult to correlate their respective data sets and leaving large gaps in engineers’ knowledge of dynamic system operation. The MDA 8000HD closes this knowledge gap by offering complete insight across the entire system.”
The OscilloSYNC technology offers the flexibility to team two WaveRunner 8000HD or two MDA 8000HD instruments together. For the first time, users can view and control 16 synchronized analogue channels from a single display and front panel—the equivalent of having a single 16-channel acquisition system. When necessary, design teams can exit OscilloSYNC and use each oscilloscope independently. No other oscilloscope manufacturer offers this level of flexibility or this many channels.
This doubling of input channel count supports power integrity measurements in embedded systems with more than 8 power rails and correlated current, clock, logic, sensor, and serial data signals, as well as Electrical Power Measurements on 3 phase motors where 16 channels are required to measure complete 3-phase AC input, DC bus, 3-phase drive output, plus calculate mechanical power output and efficiency.
Cascaded H-bridge (3-phase) inverter subsection analysis requiring 12 to 16 analogue channels to measure six power-semiconductor outputs and six gate-drive signals with some scenarios adding three-phase output signals and one DC bus-voltage signal.
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