High-Current Measurement Solutions for Power Electronics Testing NEW HIOKI AC/DC Current Probes | Up to 500 A | Up to 30 MHz
The new HIOKI CT6704 and CT6705 AC/DC Current Probes are designed for high-current, high-frequency applications, including power electronics development, electric vehicle inverters, industrial motor drives, switching power supplies and renewable energy systems.
Combining HIOKI's fluxgate sensing technology with improved amplitude accuracy and minimal temperature-related offset drift, both probes help engineers capture fast current changes and observe waveforms reliably under different operating conditions.
With a standard BNC connection, the probes can be used with compatible oscilloscopes, Memory Recorders and data acquisition systems, allowing engineers to integrate high-current measurement into their existing test setup.
Key Features
► 200 A | DC to 30 MHz | 11.6 ns Rise Time
The CT6704 is designed for high-speed current-waveform measurement where bandwidth and transient response are critical.
With a rated current of 200 Arms and DC to 30 MHz bandwidth, it is particularly suited to power converter development, high-frequency switching applications and transient current analysis.
Typical applications:
► 500 A | DC to 15 MHz | 23.3 ns Rise Time
The CT6705 is designed for applications requiring higher-current measurement while maintaining wide frequency bandwidth and stable waveform observation.
With a rated current of 500 Arms and DC to 15 MHz bandwidth, it is suitable for evaluating current behaviour in high-power converters, inverters and industrial power electronics.
Typical applications:
| Specs | CT6704Current Probe | CT6705Current Probe |
|---|---|---|
Rated current | 200 Arms | 500 Arms |
Maximum peak current | ±400 A | ±800 A |
Frequency bandwidth | DC to 30 MHz | DC to 15 MHz |
Rise time | 11.6 ns | 23.3 ns |
Amplitude accuracy | ±0.5% of reading | ±0.5% of reading |
Output voltage ratio | 0.01 V/A | 0.01 V/A |
Output connector | BNC | BNC |
Offset temperature coefficient | ±0.1 mV/°C | ±0.1 mV/°C |
Operating temperature | −10°C to 50°C | −10°C to 50°C |
Measure inverter switching currents, current overshoot and transient responses in EV traction inverters and DC-DC converters under different operating conditions.
Capture fast switching currents, waveform ringing and transient behaviour during the development of high-frequency SiC and GaN power converters.
Evaluate startup currents, switching behaviour and transient responses during changing load conditions to support power supply design and verification.
Observe inverter and motor currents during startup, acceleration, deceleration and load variations to evaluate motor drive performance.
Measure current waveforms in solar inverters, energy storage converters and bidirectional power systems during switching and changing operating conditions.
Capture current transients, load variations and power transition behaviour in UPS systems, battery backup units and critical power infrastructure.
Current measurement is often one part of a wider testing process. By combining HIOKI current probes with oscilloscopes, programmable DC power supplies, electronic loads and recording instruments, engineers can evaluate how power electronic devices behave under different operating conditions.
Capture and Analyse Current Waveforms
Connect the HIOKI CT6704 or CT6705 to a compatible oscilloscope to observe switching currents, transient events and current-waveform behaviour.
Current measurements can be displayed alongside voltage and control signals to support power electronics development and verification.
Available Manufacturers:
Provide Controlled Input Conditions for Power Electronics Testing
Programmable DC power supplies provide the voltage and current required to operate the device under test.
Combined with HIOKI current probes and an oscilloscope, engineers can evaluate current behaviour during startup, changes in input conditions and normal operation.
Available Manufacturers:
Capture and Analyse Current Waveforms
Connect the HIOKI CT6704 or CT6705 to a compatible oscilloscope to observe switching currents, transient events and current-waveform behaviour.
Current measurements can be displayed alongside voltage and control signals to support power electronics development and verification.
Available Manufacturers:
Capture and Analyse Current Waveforms
Connect the HIOKI CT6704 or CT6705 to a compatible oscilloscope to observe switching currents, transient events and current-waveform behaviour.
Current measurements can be displayed alongside voltage and control signals to support power electronics development and verification.
Available Manufacturers:
