Differential Voltage Probes | Powertek DP Series
Differential Voltage Probes DP30HS 30MHz 65V and DP40LV 40MHz 1300Vp-p
The DP-30Hs is a high sensitivty differential voltage probe for measuring small signals where signal isolation is key; an important accessory in applications involving measurement of small voltages superimposed on a larger voltage. These probes allow isolated and floating measurments with any oscilloscope or DAQ Card, yet allowing the measurement inputs to remain grounded.
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Differential Voltage Probe Product DP-25 25MHz 1400Vp-p 20mV/Div
The DP-25 series differential voltage probes are a general purpose accessory for any lab or application involved in power conversion. These probes allow isolated and floating measurments with oscilloscopes or data acquisition computers, allowing their measurement inputs to remain grounded.
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Differential Voltage Probes DP-35 35MHz 1600Vp-p 10mV/Div
The DP-35 differential voltage probe is a good all-rounder in applications based around 110V-480V systems and power electronics. These probes add safety allowing floating measurments with any DAQ, DSO, oscilloscope, where test equipment may remain grounded.
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Differential Voltage Probe HIGH SENSITIVITY DP-60HS 60MHz 70Vp-p 1mV/Div
The DP-60HS differential voltage probe provides a safe way of measuring floating voltage signals with all models of oscilloscopes. It converts the high differential voltage (≤ 70 V peak) into a low voltage (≤ 4.0 V) with reference to the earth for display on the oscilloscopes. It is designed specifically for high sensitivity use.
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Differential Voltage Probe DP-40K 20MHz 40kVp-p 500mV/Div
The DP-40k High Voltage differential voltage probe, provides a safe method of measuring very high voltage, protecting DSOs and oscilloscopes and adding safety. It converts the high differential voltage (40kVp-p) into a low voltage (≤ 4.0 V) referenced to earth for display on the oscilloscopes. It is designed specifically for high voltage but also at 20MHz
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Differential Voltage Probe DP-50 50MHz 6.5kVp-p 100mV/Div
The DP-60HS differential voltage probe provides a safety means of measuring floating potentials for all models of oscilloscopes in complete safety. It converts the high differential voltage (≤ 70 V peak) into a low voltage (≤ 4.0 V) with reference to the earth for display on the oscilloscopes. It is designed specifically for high sensitivity use.
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Differential Voltage Probe DP-15K 75MHz 15kVp-p 100mV/Div
The DP-15k High voltage differential probe has a great combination of high voltage and high frequency (75MHz on x100), particularly with HV pulses containing high dv/dt, protecting its users and their test equipments; like DSOs, DAQs and oscilloscopes. It converts its high differential voltage (15kVp-p) into a low voltage (≤ 8.0 V) referenced to earth for display on the oscilloscopes. It is designed specifically for high voltage - high frequency requirements >75MHz
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Differential Voltage Probe DP-16VF 100MHz 16kVp-p 100mV/Div
The DP-16VF High voltage differential probe has a great combination of high voltage and high frequency (150MHz), particularly with HV pulses containing high dv/dt, minimising common mode errors, protecting users and their test equipments; like DSOs, DAQs and oscilloscopes. It converts its high differential voltage (16kVp-p) into a low voltage (≤ 8.0 V) referenced to earth for display on the oscilloscopes. It is designed specifically for high voltage/high frequency applications
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Differential Voltage Probe DP-30K 75MHz 30kVp-p 200mV/Div
The DP-30k High Voltage differential voltage probe, provides a convenient-safe method of measuring very high voltage, protecting test and measurement equipments like Digital Storage Oscilloscopes (DSO), adding safety minimizing errors. It converts high voltage (30kVp-p) into a low voltage (+/-8.0Vpk) referenced to earth for display on oscilloscopes. It is designed specifically for high voltage but also at 75MHz
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Differential Voltage Probe DP-8V 50MHz 8kVp-p 10mV/Div
The DP-8V High voltage differential probe is a mid-range high voltage (8kV) and high frequency probe (50MHz), useful with HV pulses containing high fast risetimes, protecting users and their test equipments; like DSOs, DAQs and oscilloscopes. It converts its differential voltage input (8kVp-p) into a low voltage (≤ 8.0 V) referenced to earth for display on oscilloscopes and computer DAQ systems
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Differential Voltage Probe DP-16VF 150MHz 16kVp-p 100mV/Div
The DP-16VF High voltage differential probe has high voltage and high frequency (150MHz), particularly good with HV pulses containing high dv/dt, minimising common mode errors, protecting users and their test equipments: like DSOs, DAQs and oscilloscopes. The DP=16VF converts its input differential voltage (16kVp-p) into a safe-low voltage (≤ 8.0 V) referenced to earth for display on oscilloscopes. It is designed specifically for high voltage/high frequency applications
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Differential Voltage Probe DP-02VF 150MHz 80Vp-p 2mV/Div
The DP-02VF Very High Frequency differential voltage probes offer high sensitivity of 2mV/Div and high frequency wideband operation (150MHz), particularly useful when measuring high speed trigger circuits with GaN switching technologies containing high dv/dt, minimizing errors caused by ground path leakage via test equipments; like DSOs, DAQs and oscilloscopes. It converts wideband high differential voltage to a low voltage signal (≤ 8.0 V) referenced to earth for safe-easy display on the oscilloscopes
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Differential Voltage Probe DP-08VF 150MHz 800Vp-p 10mV/Div
The DP-08VF Very High Frequency differential voltage probes offer moderately high voltage (800V) and high frequency (150MHz), particularly useful with GaN switching technologies containing high dv/dt, minimizing errors caused by ground paths via test equipments; like DSOs, DAQs and oscilloscopes. It converts wideband high differential voltage to a low voltage signal (+/- 2.0 V) referenced to earth for safe-easy display on the oscilloscopes.
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What is a Differential Voltage Probe?
A differential voltage probe measures the difference in voltage between two points on the device under test (DUT). However, these two points may be floating; meaning they not ground referenced - typically found in switching power supplies or similar power electronic devices. As the name suggests a Differential Probe uses a differential amplifier along with sufficient input impedance, often several MOhms. The differential probe presents little influence on the DUT's operation and allows safe monitoring of DUT system voltages. Often it is crucial for safety when measuring high-voltage signals in non-ground-referenced circuits. Finally an important distinction is that a differential probe does not use galvanic isolation.
Differential Voltage Probe Applications
High voltage transmission is often thought of when thinking of high voltage applications, however there are many applications that require a high voltage power source. The definition for high voltage applications varies by industry and region. The IEC defines high voltage as anything above 1kV for AC and above 1.5kV for DC, in automotive engineering high voltage is anything above 60V. The primary use of high voltage outside of transmission can be found in the industrial, scientific, medical and imaging fields.
High voltage applications within the medical field include:-Electrophoresis (a technique used to separate proteins, and nucleic acids such as DNA/RNA based on their size and electrical charge)
PCR (polymerase chain reaction) tests, and DNA sequencing
X-ray tubes require a high voltage to be able to generate x-rays used for imaging
Image intensifiers (where photomultiplier tubes also use a high voltage field to accelerate photoelectrons). This effectively multiplies the incoming light signal
HV applications outside the medical field:-
Differential Voltage Probe summary