In power electronics applications, converter validation, and energy system testing, accurately measuring high-voltage signals is a major technical challenge. In industrial environments such as Monterrey and its metropolitan area, where sectors such as automotive, electronics, and energy converge, having the right instrumentation is key to reliable results.
The MICSIG DP series of high-voltage differential probes offers a robust solution for safe, high-fidelity measurements on oscilloscopes, allowing floating signals to be analyzed without a direct ground reference. Its design aims to minimize loading on the circuit under test while preserving the integrity of the measured signal.
Differential measurement in high-voltage environments
Unlike conventional probes, a differential probe measures the potential difference between two points without referencing either one to ground. This is essential in applications such as:
- DC-DC and AC-DC converters
- Power inverters
- Electric traction systems
- Switch-mode power supplies (SMPS)
- Power semiconductor testing
The DP series makes these measurements possible at voltages up to 7000 V peak, while maintaining safety and accuracy.
Performance and key features
MICSIG DP Series probes stand out for their balance of bandwidth, accuracy, and protection:
- Bandwidth of 100 to 300 MHz, suitable for analyzing fast signals
- High common-mode rejection ratio (CMRR) for stable measurements
- High-impedance, low-capacitance design, reducing the impact on the circuit
- Standard BNC interface, compatible with most oscilloscopes
- One-button auto calibration
- Visual and audible overload alarm
- Range setting memory after power-off
- 5 MHz bandwidth limit function for noise reduction
In addition, command programmability allows integration into automated test benches.
Technical specifications – MICSIG DP Series
| Parameter | Specification |
|---|---|
| Available models | DP700 / DP702 / DP703 / DP1500 / DP1502 / DP1503 / DP3000 / DP3002 / DP3003 / DP7000 / DP7002 / DP7003 |
| Bandwidth | 100 MHz / 200 MHz / 300 MHz |
| Rise time | ≤ 3.5 ns / 1.8 ns / 1.13 ns |
| Attenuation | 20X / 200X, 50X / 500X, 100X / 1000X |
| Maximum differential voltage | Up to 7000 V peak (depending on model) |
| Maximum voltage to ground | Up to CAT III 600 V / CAT II 1000 V |
| Noise | From ≤ 20 mVrms to ≤ 600 mVrms (depending on range) |
| CMRR | DC: > -80 dB / 100 kHz: > -60 dB / 10 MHz: > -30 dB / 100 MHz: > -26 dB |
| Input impedance | Up to 120 MΩ / 0.78 pF (differential) |
| Output voltage | ≤ 3 V – 3.5 V |
| Accuracy | ±2% (1% option under specific configuration) |
| Output impedance | 1 MΩ (100 MHz) / 50 Ω (200–300 MHz) |
| Power supply | DC 5 V |
| Protection | Overload LED and audible alarm |
| Dimensions | 13.5 × 5 × 2.5 cm |
| Cable length | Input: ~31 cm / Output: ~100 cm |
| Operating temperature | 0 °C to 40 °C |
| Standards | EN 61010, EN IEC 61326, among others |
Benefits of renting
Renting MICSIG DP Series differential probes provides access to high-performance instrumentation without a permanent investment, making it easy to use in specific projects, validations, or specialized testing.
Key benefits include:
- Immediate availability for critical tests
- Flexibility according to the required voltage level
- Compatibility with existing equipment
- Lower costs on temporary projects
- Support for advanced measurement applications
This approach optimizes resources while maintaining accuracy and safety in high-voltage measurements within demanding industrial environments.
