DP-50 High Voltage Differential Probe
The differential probe DP-50 allows isolated and floating measurments with any oscilloscope or data recorder, allowing the oscilloscope to remain grounded.
Highlights
- High voltage differential probe
- Max. Input Voltage: 6.5kV DC / 6.5kVp-p
- Bandwidth: DC-50MHz
- Input Impedance 54MΩ and 1pF
- x100, x200, x500, x1000 Attenuator
- Max to ground voltage: 6.5kV CATIII
- Output Impedance 50Ω
- Used for isolation of oscilloscope and data loggers
- Suitable for power electronic systems and EV electric vehicle power systems
- Allows isolated floating safe measurements
- Prevents ground loop currents between test equipments
Description
About the DP-50 High Voltage Differential Probe
The DP‑50 differential voltage probes are an essential accessory for engineers working in power electronics, high‑voltage systems and industrial energy conversion. Designed for safe, accurate and isolated measurements, the DP‑50 enables reliable oscilloscope observation of high‑potential signals while keeping the oscilloscope itself securely grounded. This makes it a critical tool for applications where standard single‑ended probes cannot be used due to grounding limitations or elevated voltage levels.
The DP‑50 differential voltage probes are an important accessory for any application involved in power electronics and high voltage systems. These probes allow isolated and floating measurements with any oscilloscope or data recorder, allowing the oscilloscope to remain grounded. Using a DP‑50 differential probe, differential and floating (isolated) measurements can be made on a variety of AC power systems found in 460V/230V/110V AC input power supplies, chopped and switching power supplies, thyristor controllers, variable‑speed motor drives (PWM signals), motor inrush current and measurement across current shunts.
Engineered for versatility and safety, the DP‑50 features isolated inputs via two 4mm safety banana sockets, ensuring secure connection to high‑voltage test points. The BNC output provides effortless compatibility with oscilloscopes and DAQ systems, enabling clean, stable waveform capture across a wide range of power‑electronics environments.
The DP‑50 isolation probes can be powered from either a battery or an external power supply, offering flexibility for both bench and field use. With strong common‑mode noise rejection, high input impedance and robust insulation, the DP‑50 delivers accurate differential measurements even in noisy, high‑EMI switching environments.
Ideal for R&D labs, industrial maintenance, academic programs and system validation. The DP‑50 is the go‑to solution for engineers who require safe floating measurements, high‑voltage differential accuracy and reliable oscilloscope performance in demanding power‑electronics applications.
Applications
DP-50 High Voltage Differential probe:
- Accurate measurement of high‑Voltage, floating points
- Measurements of High‑Voltage DC Bus
- Switch‑Mode Power Supplies like Snubber Circuits
- DC bus ripple and switching noise
- High‑Voltage DC Bus Measurements
- Measuring differential voltage across low‑Ω shunts
- Inverters and Motor‑drive development
- Measuring common‑mode noise in switching converters
- Inverter,UPS and PFC testing
- Investigating ground loops and floating nodes
- Floating gate drivers analysis(bootstrap circuits)
- EMI troubleshooting
- SiC/GaN devices, IGBT gate ringing and overshoot analysis
- High‑voltage battery systems
- MPPT converter switching nodes
- Measuring common‑mode noise in switching converters
- Grid‑Connected Systems
Specifications
| DP-50 High Voltage Differential Probe | |
|---|---|
| Differential Voltage DC/AC peak | 6.5kVp-p |
| Bandwidth (50Ω load -3dB) | 50MHz |
| Common Mode Voltage DC/AC pk | 3.25kVp-p |
| Common Mode Voltage RMS CAT|| / CAT||| | 3.25kVp-p |
| To Ground Maximum Voltage | 3.25kVp-p CAT||| |
| Attenuation(Switchable) | x100, x200, x500, x1000 |
| Input R (Each Input) | 27MΩ >±2% |
| Input C (Each Input) | <2pF |
| Maximum Operation Voltage (DC + AC pk) | ≤650V at x100 |
| ≤1300V at x200 | |
| ≤3.25kV at x500 | |
| ≤6.5kV at x1000 | |
| Common Mode Rejection Ratio(CMRR) | 60Hz: > 10000:1 |
| 100Hz: > 1000:1 | |
| 1MHz: > 300:1 | |
| Noise (Into 50Ω Load) | ≤2mVrms |
| Input Impedance(Between Input) | 54MΩ 1.25pF |
| Accuracy (at 20-30°C 70%RH after 20minutes) | ≤ ±2% |
| Maximum Output Voltage | 6.5Vp-p |
| Power Source | External 9V DC Adaptor |
| Other | Over Range Indication |
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