Celebrating 40 Years of Innovation: 1968-2008

Products: High Voltage Amplifiers

Model PD05034 High-Voltage Power Amplifier

The Trek Model PD05034 is a DC-stable, high-voltage power amplifier designed to provide precise control of output voltages in the range of 0 to ±7.5 kV DC or peak AC with an output current range of 0 to ±50 mA DC with a peak current capability of 160 mA for 60 us. The Model PD05034 is configured as a noninverting amplifier with a fixed gain of 1000 V/V. Industrial and research applications include dielectric material characterization, polymer and ceramic corona charging, and piezoelectric driving and control.

The Model PD05034 features an all solid-state design for high slew rate, wide bandwidth, and low-noise operation. The four-quadrant, active output stage sinks or sources current into reactive or resistive loads throughout the output voltage range. This is essential for achieving the accurate output response and high slew rates demanded by reactive loads.

The Model PD05034 is protected against overvoltage and overcurrent conditions that may be generated by active loads or by output short circuits to ground. Precision voltage and current monitors provide low-voltage replicas of the high-voltage output and load current for monitoring purposes or for use as feedback signals in a closed-loop system.

The Remote High-Voltage On/Off feature provides a connection for a remote device to turn on and off the High-Voltage of the instrument. This makes the Model PD05034 suitable for automated or computer controlled systems.

The Model PD05034 can be operated on a bench top or in a standard 19-inch rack.

back to top

PERFORMANCE

  • DC Voltage Gain
    1000 V/V.
  • DC Voltage Gain Accuracy
    Better than 0.1% of full scale.
  • Offset Voltage
    Less than ±2 V.
  • Output Noise
    Less than 5 V rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
  • Slew Rate (10% to 90%, typical)
    Greater than 1000 V/µs.
  • Large Signal Bandwidth (1% distortion)
    DC to greater than 15 kHz.
  • Small Signal Bandwidth (-3dB)
    DC to greater than 75 kHz.
  • Settling Time (to 1%)
    Less than 50 µs for a 7.5 kV step.
  • Stability
    • Drift with Time
      Less than 50 ppm/hr, noncumulative.
    • Drift with Temperature
      Less than 200 ppm/°C.
  • Automatic Power Limit
    Automatically limits the output power to protect the Model PD05034 from overheating due to excessive internal power dissipation. The following graph illustrates the Model PD05034 operating range automatic power limits.

back to top

PRODUCT FEATURES

  • High-Voltage On/Off
    Switch selectable for either local or remote control.
    • Local
      Individual push-button switches.
    • Remote
      A TTL compatible input. A TTL high (or open) turns off the high-voltage output. A TTL low turns on the high-voltage output.
  • Dynamics Adjust
    A graduated one-turn panel potentiometer used to optimize the AC response of the Model PD05034 for various load parameters.
  • Current Limit/Trip
    Switch selectable for either limit or trip. A graduated one-turn panel potentiometer is used to adjust the limit or trip level from 0 to ±50 mA.
  • Out of Regulation Status
    An amber indicator will illuminate and a BNC will provide a TTL low when the Model PD05034 fails to produce the required high-voltage output such as during current limit or short circuit load conditions.
  • Trip Status
    An indicator will illuminate and a BNC will provide a TTL low when the high-voltage output is disabled due to:
    a) the output current exceeding the current trip level,
    b) the detection of a high-voltage power supply fault, or
    c) the removal of the top cover.
  • Fault Status
    A BNC will provide a TTL low when the Model PD05034 is out of regulation for greater than 100 ms.
  • Voltage Monitor
    A buffered output providing a low-voltage replica of the high voltage output.
    • Scale
      1/1000th of the high-voltage output signal.
    • DC Accuracy
      Better than 0.1% of full scale.
    • Offset Voltage
      Less than ±2 mV.
    • Output Noise
      Less than 10 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
    • Output Impedance
      47 ohms.
  • Current Monitor
    A buffered output providing a low-voltage representation of the load current.
    • Scale
      0.05 V/mA.
    • DC Accuracy
      Better than 1% of full scale.
    • Offset Voltage
      Less than ±10 mV.
    • Output Noise
      Less than 30 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
    • Bandwidth (-3db)
      DC to greater than 5 kHz.
    • Output Impedance
      47 ohms.

back to top

OUTPUT

  • Output Voltage Range
    0 to ±7.5 kV DC or peak AC.
  • Output Current Range
    0 to ±50 mA DC with a peak current capability of ±160 mA for 60 us.
    (See Automatic Power Limit feature for limitations.)

back to top

AMPLIFIER INPUT

  • Input Voltage Range
    0 to ±7.5 V DC or peak AC.
  • Input Impedance
    10 kohm, nominal.

back to top

ACCESSORIES

  • Accessories Supplied
    • Operator’s manual, Alden high-voltage output cable assembly, and line cord.

back to top

GENERAL

  • Dimensions
    279 mm H x 482 mm W x 654 mm D
    (11" H x 19" W x 25.8" D).
    • Weight
      24.9 kg (55 lb).
  • High-Voltage Output Connector
    Alden high-voltage connector.
  • Amplifier Input
    BNC connector.
  • Voltage Monitor Connector
    BNC connector.
  • Current Monitor Connector
    BNC connector.
  • Remote High-Voltage On/Off Connector
    BNC connector.
  • Out of Regulation Status Connector
    BNC connector.
  • Fault/Trip Status Connector
    BNC connector.
  • AC Line Receptacle
    Standard IEC three-prong line connector.
  • Power Requirements
    • Line Voltage
      104 to 127 V AC or 180 to 250 V AC, at 48 to 63 Hz (specify when ordering).
    • Power Consumption
      1000 VA, maximum.
  • Operating Conditions
    • Temperature
      0 °C to 40 °C.
    • Relative Humidity
      To 75%, noncondensing.

    back to top

CERTIFICATION

TREK, INC. certifies that each Model PD05034 is tested and calibrated to specifications using measurement equipment traceable to the National Institute of Standards and Technology or traceable to consensus standards. A Certificate of Calibration accompanies each instrument when it is shipped from the factory.

  • Low-Voltage Safety Compliance (EN 61010-1)
    • Installation Category
      CAT II: Local level mains, appliances, portable equipment.
    • Pollution Category
      Degree 1: Operate in environments where no pollution or only dry, nonconductive pollution occurs.

All specifications are with no load unless otherwise noted.
All specifications are subject to change.

back to top