PSD Switching Measurement with High Definition Oscilloscope
PSD*Switching Measurement with High Definition Oscilloscope
* Power Semiconductor Device
Issue:
The switching loss ("Power" in the example) is calculated by multiplying the output voltage(VDS) and current(Id) in the switching period (turn ON/turn OFF). The ON voltage is only a few volts for an output voltage of several hundred volts, but with a typical 8-bit oscilloscope, this is only 1 to 2 bits of AD resolution, and highly accurate measurements are not possible.
Solution:
The DLM5000HD with 12-bit ADC has 16 times the resolution of conventional 8-bit oscilloscopes, making it ideal for such wide dynamic range measurements. In addition, next-generation devices such as SiC/GaN have a high-speed rising switching voltage, which causes high-voltage ringing, and suppressing it is an important point in designing inverters. High Definition Oscilloscope is also effective for such ringing/noise observations.
Example: SiC MOSFET double pulse test waveform
相关行业
相关产品和解决方案
701978 Differential Probe 1500 V / 150 MHz
- 701978 Differential Probe for Oscilloscope
- 1500 V / 150 MHz
- 500:1 / 50:1
- Max. Differential Voltage：±1500 V (DC + ACpeak)
702916 Current Probe 120 MHz/ 0.5 ARMS, 5 ARMS, 30 ARMS
Frequency bandwidth: DC to 120 MHz
Maximum continuous input range: 0.5 Arms/5 Arms/30 Arms
Functions with Digital Oscilloscopes, ScopeCorders and other waveform measuring instruments
电流探头 100MHz 701928
此探头不需要额外的电源连接(LEMO接口)，可被自动识别，通过DLM2000、DLM3000、DLM4000、DL6000/DLM6000、DL9000/DLM9000、SB5000系列的操作调整零位。
高分辨率示波器 DLM5000HD 系列
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
数字式混合信号示波器
让我们来感受世界一流的横河示波器：自1988年首款机型面世以来，YOKOGAWA一直不断创新，致力于电力电子、机电一体化和新能源等前沿行业专用示波器的研发，近期又推出全新DLM系列示波器，既有面向低成本市场的4CH MSO示波器——DLM3000系列，也有业界全新的8CH MSO示波器——DLM5000系列，在由智能控制的消费电子和工业驱动等电路设计的众多领域中，成为全球工程师的首选工具。
获得更多专业服务