Sapphire Instruments
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Sapphire Instruments
Overview
The differential amplification principle of a high-voltage differential probe refers to a pair of signals being input into an amplification circuit simultaneously and then subtracted to obtain the original signal.
A differential amplifier is an amplifier composed of two transistors with identical parameter characteristics and directly coupled.
If signals of equal amplitude and the same phase are input to both input terminals, the output is zero, thereby overcoming zero drift.
Typical applications of high-voltage differential probes:
Dynamic parameter measurement of SiC and GaN semiconductors
Evaluation of power supply system switching parameters
Floating ground voltage measurement of high-voltage inverters
Electric & hybrid vehicle electric drive systems
High-energy physics research
——— Related Applications ———
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CIC high-voltage differential probe DP20-20K-LVC high-precision 0.1% high-frequency isolated high CMRR 20 kV
Specifications
SI-9010 Specifications
| Parameter | Specification |
|---|---|
| Bandwidth | DC to 70MHz (-3dB) |
| Attenuation | 1:100 / 1000 |
| Accuracy | ±2% |
| Rise Time | |
| Input Impedance | 10MΩ // 10pF each side to ground |
| Input Voltage | |
| - Category | CAT I |
| - Differential Range | 700Vrms and ±700V(DC+Peak AC) @1/1005000Vrms and ±7000V(DC+Peak AC) @1/1000 |
| - Common Mode Range | 2500Vrms and ±7000V(DC+Peak AC) @1/100 & 1/1000 |
| - Absolute Max. Voltage | 2500Vrms and ±7000V(DC+Peak AC) @1/100 & 1/1000 in common mode5000Vrms and ±7000V(DC+Peak AC) @1/100 & 1/1000 in differential mode |
| Output Voltage | |
| - Swing | ±7V (into 50kΩ load) |
| - Offset (typical) | |
| - Noise (typical) | 0.9mVrms |
| - Source Impedance (typical) | 50Ω (for using 1MΩ input system oscilloscope) |
| CMRR (typical) | -80dB @ 50Hz, -60dB @ 20kHz |
| Ambient Operating Temperature | -10 to 40℃ |
| Ambient Storage Temperature | -30 to 70℃ |
| Ambient Operating Humidity | Up to 85% RH |
| Ambient Storage Humidity | Up to 85% RH |
| Power Requirements* | |
| - Standard | 4xAA cells |
| - Options | Power leads, Mains adaptor* (6VDC/200mA or regulated 9VDC/120mA), USB power cord |
| Length of BNC Cable | 90cm |
| Length of Input Leads | 60cm |
| Weight | 500g |
| Dimension (L×W×H) | 202mm × 83mm × 38mm |
Notes:
a. The supplied voltage must be less than 12V and greater than 4.4V, otherwise the probe could be damaged or can't operated properly.
b. Polarity is "+" inside and "-" outside. For wrong polarity, built-in circuit protects the probe, no danger or damage will occur.
c. When the voltage of the cells become too low, the power indicator on the panel will flicker.
Expand
* Specifications are subject to change without notice.