The CS548 from Cleverscope is an oscilloscope system with 4 fully galvanically isolated internal channels for demanding measurement tasks in modern power electronics. This allows high-side and low-side signals to be measured simultaneously, reliably and with maximum accuracy.
The CS548 was specially developed for applications involving high voltages, extremely fast switching edges and large common-mode voltages. Typical areas of application include inverters, switched-mode power supplies, motor drives, automotive electronics, GaN and SiC power semiconductors as well as EMC and efficiency measurements.
The combination of very high common mode rejection, high resolution and high bandwidth means that even the smallest signal components can be cleanly recorded in the presence of large interference voltages. The integrated isolated signal generator, digital expandability via pods and the option of coupling up to four devices to form a 16-channel system make the CS548 a complete measurement platform for the development, analysis and validation of power electronics systems.
Typical areas of application:
- Measurement of high-side and low-side signals in half and full bridges
- Analysis of gate drivers (dead time, gate charge, timing, overshoot)
- Measurement of switching and conduction losses on MOSFETs, IGBTs, GaN and SiC transistors
- Current, voltage and power analysis in converters and power supplies
- EMC and spectrum analysis of switching nodes and supply rails
- Frequency response analysis (FRA) of power supplies, filters and passive components
- Synchronized multi-channel measurements with up to 16 isolated channels
Technical product features:
- Up to 4 fully galvanically isolated analog channels (optionally available with fewer channels)
- Isolation per channel: 2 kV DC, 600 V AC CAT III (local channels)
- Up to ±30 kV isolation when using the remote digitizers
- Extremely high common mode rejection ratio (CMRR): up to 100 dB at 50 MHz
- 14 bit resolution with approx. 100 dB dynamic range
- Analog bandwidth: 200 MHz
- Sampling rate: up to 500 MS/s on all channels simultaneously
- Two hardware input ranges: ±0.8 V and ±8 V (automatic scaling via probes)
- Very low noise: approx. 200 µV RMS in the ±0.8 V range
- Integrated isolated signal generator up to 65 MHz
- Isolated digital inputs and outputs expandable via pod system
- Synchronizable with up to 3 additional CS548 devices for 16-channel measurement systems
- Very low channel-to-channel jitter for precise time correlation
- USB 3.0 interface for fast data transfer
- Developed according to safety standards for measurements up to CAT III
Recommendations - Get the most out of your high-performance oscilloscope system:
CS1200 Voltage Digitizer (Voltage Digitizer)
The CS1200 Voltage Digitizer is an external, battery-powered, fully isolated voltage digitizer. It is connected to the CS548 via a fiber optic connection and enables measurements directly in the high-voltage range or inside safety cages. It is required when voltages with extremely high common-mode potential or at a greater distance from the oscilloscope need to be measured safely. This enables high-precision voltage measurements to be carried out on floating potentials, e.g. on high-side switches or DC links.
CS1201 Current Digitizer
The CS1201 Current Digitizer is used together with a low-impedance shunt (e.g. 1 mΩ) and enables high-precision, isolated current measurements with a very high bandwidth. It is required to measure switching currents, current ramps and fast current transients directly on power semiconductors. This enables precise calculations of switching losses, conduction losses and energy per switching operation.
Other important accessories:
- CS1301 Isolated Digital Input Pods: Isolated digital inputs for the acquisition of logic signals, triggers and control lines (included in the scope of delivery).
- CS1302 Isolated Digital I/O Pod: Generation of isolated PWM, pulse and double-pulse signals, ideal for gate control and DPT tests.
- CS1133 VSAT Probe: Special probe for measuring very low saturation voltages on power semiconductors with high reverse voltage at the same time.
- CS1501 Shunt Sensor: Precise 1 mΩ shunt for the CS1201 for highly dynamic current measurement.
- Link cable: For coupling several CS548 devices to form a synchronized multi-channel system.
- Isolated probes and 100x probes: For measurements on high voltages and fast switching nodes.
