Teledyne LeCroy - HVFO High Voltage Fiber Optically-isolated Probe

Teledyne LeCroy - HVFO High Voltage Fiber Optically-isolated Probe
  • Applications
  • Upper-side gate drive signal measurements
  • Floating control signal or sensor voltage measurements
  • EMC, EFT, ESD, and RF immunity testing and system optimization
  • Any small signal measurements with high common-mode voltage
  • 60 MHz bandwidth
  • 35 kV common-mode voltage rating (fiber optic isolation)
  • Superior Noise and Rejection
    • 140 dB CMRR
    • Low loop inductance
    • Low attenuation
  • Reduced DUT loading, better pulse response compared to conventional HV differential probes
  • Selectable tips from ±1V to ±40V
  • Eliminates need to “float” the oscilloscope
  • ProBus-compatible with many Teledyne LeCroy oscilloscopes

More

The HVFO is an affordable, optimally designed probe for measurement of small signals floating on an HV bus in power electronics designs or for EMC, EFT, ESD, and RF immunity testing sensor monitoring. It far surpasses the measurement capabilities and signal fidelity of both conventional HV differential probes and acquisition systems that rely on galvanic high voltage isolation. Furthermore, it mitigates the need to rely on dangerous test setups that require floating the oscilloscope and probe.

Key Features

  • 60 MHz bandwidth
  • Common-mode (safety) voltage virtually unlimited (optical isolation)
  • Superior Noise and Rejection
    • 140 dB CMRR
    • Low loop inductance
    • Low attenuation
  • Reduced DUT loading, better pulse response compared to conventional HV differential probes
  • Selectable tips for from +/-1V to +/-40V
  • Eliminates need to "float" the oscilloscope
  • ProBus-compatible with many Teledyne LeCroy oscilloscopes
Upper-side Gate Drive Signal Measurements

Upper-side gate drive signals will be faithfully reproduced without loading and distortion or mysterious ringing, overshoots and transients, providing a clear view of the Miller effect on the gate drive signal. Any conventional HV differential probe with high tip capacitance in parallel with CGE or CGS, and/or high impedance and large loop inductance in series with the gate drive impedance will at best load the gate drive signal or pick up interference and at worst cause circuit malfunction. The HVFO performs much better for these measurements.

Floating Control or Sensor Signal Measurements

The HVFO measures only the low voltage sensor voltage across its high impedance input leads. Total load on the device under test (DUT) is very small. Furthermore, the low lead loop inductance, >100dB CMRR, and low attenuation provide superior signal fidelity, noise and rejection.

EMC, EFT, ESD and RF Immunity Testing and System Optimization

AC and DC sensor signals floating at a high voltage or in the presence of EMC disturbance signals can be acquired with high signal fidelity and correctly correlated to in-circuit and control activities.

Optical Isolation is Best

Optical isolation between the probe tip and the oscilloscope input reduces adverse loading of the DUT, provides faithful pulse response, and increases confidence in the measurement. Safety against dangerous high voltage levels can be ensured and unsafe "floating" of the oscilloscope can be avoided.

Superior Noise and Rejection

High CMRR (>100 dB) provides more accurate representation of the measured signal despite the presence of high dV/dt or dA/dt events elsewhere in the circuit. The test lead is optimized to limit loop inductance and radiated pickup. Tip attenuations are optimized for a wide range of signal amplitudes.

Compact, Simple, Affordable

The HVFO103 is small enough to fit in tight spaces, provides just enough performance for real-world needs, and is affordable enough to fit the tightest of equipment budgets. A single laser and fiber optic cable is used for optical isolation and modulated signal + data communication, and multiple tips achieve different operating voltage ranges.

More Product Information

Teledyne LeCroy - PPE5KV 100:1 400 MHz 50M Ohm High-Voltage Probe

The PPE series of probes are suitable for a wide range of applications where high-voltage measurements must be made safely and accurately. There are five fixed-attenuation probes covering a range from 2 kV to 20 kV, and one switchable probe providing ÷10/÷100 attenuation for voltage inputs up to 1.2 kV.

New technology which utilizes hybrid circuitry (and switch reading for probes with switchable gain/attenuation) minimizes ringing and overshoot to provide a precise response.

All fixed-attenuation, standard probes automatically re-scale any Teledyne LeCroy 9300C or LC series oscilloscope for the appropriate attenuation factor of the probe.

Teledyne LeCroy - PPE4KV 100:1 400 MHz 50M Ohm High-Voltage Probe

The PPE series of probes are suitable for a wide range of applications where high-voltage measurements must be made safely and accurately. There are five fixed-attenuation probes covering a range from 2 kV to 20 kV, and one switchable probe providing ÷10/÷100 attenuation for voltage inputs up to 1.2 kV.

New technology which utilizes hybrid circuitry (and switch reading for probes with switchable gain/attenuation) minimizes ringing and overshoot to provide a precise response.

All fixed-attenuation, standard probes automatically re-scale any Teledyne LeCroy 9300C or LC series oscilloscope for the appropriate attenuation factor of the probe.

Teledyne LeCroy - PPE2KV 100:1 400 MHz 50M Ohm High Voltage Probe

The PPE series of probes are suitable for a wide range of applications where high-voltage measurements must be made safely and accurately. There are five fixed-attenuation probes covering a range from 2 kV to 20 kV, and one switchable probe providing ÷10/÷100 attenuation for voltage inputs up to 1.2 kV.

New technology which utilizes hybrid circuitry (and switch reading for probes with switchable gain/attenuation) minimizes ringing and overshoot to provide a precise response.

Teledyne LeCroy - PPE6KV 1000:1 400 MHz 50M Ohm High-Voltage Probe

The PPE series of probes are suitable for a wide range of applications where high-voltage measurements must be made safely and accurately. There are five fixed-attenuation probes covering a range from 2 kV to 20 kV, and one switchable probe providing ÷10/÷100 attenuation for voltage inputs up to 1.2 kV.

New technology which utilizes hybrid circuitry (and switch reading for probes with switchable gain/attenuation) minimizes ringing and overshoot to provide a precise response.

All fixed-attenuation, standard probes automatically re-scale any Teledyne LeCroy 9300C or LC series oscilloscope for the appropriate attenuation factor of the probe.

Teledyne LeCroy - HVP120 400 MHz High Voltage Passive Probe
  • 400 MHz probe bandwidth
  • 900 ps rise time
  • 1000 Vrms maximum input
  • Up to 6 kV transient overvoltage

Teledyne LeCroy - HVD3605 6kV, 100 MHz High Voltage Differential Probe
  • 6 kV CAT safety rated
  • Widest differential voltage range available
  • Exceptional common-mode rejection ratio (CMRR) across a broad frequency range
  • 1% gain accuracy
  • High offset capability at both high and low attenuation
  • AC or DC coupling
  • 6 meter cable
  • ProBus active probe interface with automatic scaling
  • Auto-zero capabilities
  • Wide oscilloscope compatibility

Teledyne LeCroy - HVD3206 2kV, 120 MHz High Voltage Differential Probe
  • 2 kV CAT safety rated
  • Only 1500 Vdc safety rated probe per IEC/EN 61010-031:2015
  • Exceptional common-mode rejection ratio (CMRR) across a broad frequency range
  • 1% gain accuracy
  • High offset capability at both high and low attenuation
  • AC or DC coupling
  • ProBus active probe interface with automatic scaling
  • Auto-zero capabilities
  • Wide oscilloscope compatibility

Teledyne LeCroy - HVD3106 1kV, 120 MHz High Voltage Differential Probe
  • 1 kV CAT safety rated
  • Exceptional common-mode rejection ratio (CMRR) across a broad frequency range
  • 1% gain accuracy
  • High offset capability at both high and low attenuation
  • AC or DC coupling
  • ProBus active probe interface with automatic scaling
  • Auto-zero capabilities
  • Wide oscilloscope compatibility
Teledyne LeCroy - HVD3102 1kV, 25 MHz High Voltage Differential Probe
  • 1 kV CAT safety rated
  • Exceptional common-mode rejection ratio (CMRR) across a broad frequency range
  • 1% gain accuracy
  • High offset capability at both high and low attenuation
  • AC or DC coupling
  • ProBus active probe interface with automatic scaling
  • Auto-zero capabilities
  • Wide oscilloscope compatibility