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Products: High Voltage Power Amplifiers

Trek Model 10/10B High-Voltage Power Amplifier

The Trek Model 10/10B is a DC stable high-voltage power amplifier capable of precise control of output voltages in the range of 0 to ±10 kV DC or peak AC with an output current range of 0 to ±10 mA DC or peak AC. The Model 10/10B is configured as a noninverting amplifier with a fixed gain of 1000 V/V.

Industrial applications include electrophoresis, electrophotography, electrostatic deflection, electrooptic modulation, and AC or DC biasing. The Model 10/10B 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 10/10B is protected against over-voltage and over-current conditions that may be generated by active loads or by output short circuits to ground.

Precision voltage and current monitors provide low-voltage representations 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 output. This makes the Model 10/10B suitable for automated or computer-controlled systems.

The Model 10/10B can be operated on a bench top or in a standard 19-inch rack.

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AMPLIFIER INPUT & Output

  • Output Voltage Range
    0 to ±10 kV DC or peak AC.
  • Output Current Range
    0 to ±10 mA DC or peak AC.
    (See Automatic Power Limit feature for limitations.)
  • Input Voltage Range
    0 to ±10 V DC or peak AC.
  • Input Impedance
    20 kohm, nominal.

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PERFORMANCE

  • DC Voltage Gain
    1000 V/V.
  • Gain Accuracy
    Better than 0.1% of full scale.
  • Offset Voltage
    Better than ±2 V.
  • Output Noise
    Less than 0.5 V rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
  • Slew Rate (10% to 90%, typical)
    Greater than 350 V/µs.
  • Large Signal Bandwidth (-3dB)
    DC to greater than 15 kHz.
  • Large Signal Bandwidth (1% distortion)
    DC to greater than 10 kHz.
  • Small Signal Bandwidth (-3dB)
    DC to greater than 20 kHz.
  • Settling Time (to 1%)
    Less than 100 µs for a 0 to 10 kV step.
  • Automatic Power Limit
    Automatically limits the internal power dissipation to protect the 10/10B from overheating. The following graph illustrates the automatic power limit.
  • Stability
    • Drift with Time
      Less than 100 ppm/hr, noncumulative.
    • Drift with Temperature
      Less than 100 ppm/°C.

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PRODUCT FEATURES

  • High-Voltage On/Off
    Switch selectable for either local or remote control.
    • Local
      Individual push button.
    • Remote (Digital Enable)
      A TTL compatible input. A TTL high (or open) turns off the high-voltage output. A TTL low turns on the high-voltage output.
  • Dynamic Adjustment
    A graduated one-turn potentiometer used to optimize the AC response of the 10/10B under various load parameters.
  • Current Limit/Trip
    Switch selectable for either limit or trip. A graduated one- turn potentiometer is used to adjust the limit or trip level from 0 to 10 mA.
  • Out Of Regulation Status
    An indicator will illuminate and a BNC will provide a TTL low when the 10/10B fails to produce the required high-voltage output such as during current limit.
  • FAULT/TRIP STATUS Indicator and Connector
    An indicator will illuminate and a BNC will provide a TTL low when the high-voltage is disabled due to one of the following conditions: the set current trip level is exceeded or the internal interlock circuit is interrupted such as by removal of the cover. The FAULT/TRIP STATUS connector will also provide a TTL low when the 10/10B is out of regulation for more than 500 ms, such as during a current limit. However, in this instance the high-voltage output is not disabled.
  • 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
      Better than ±3 mV.
    • Output Noise
      Less than 20 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
      1 V/mA.
    • DC Accuracy
      Better than 1% of full scale.
    • Offset Voltage
      Better than ±10 mV.
    • Output Noise
      Less than 50 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
    • Bandwidth (-3db)
      DC to greater than 10 kHz.
    • Output Impedance
      47 ohms.

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GENERAL

  • Dimensions
    190 mm H x 432 mm W x 417 mm D
    (7.5" H x 17" W x 16.4" D).
  • Weight
    14 kg (31 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 AC line connector with an integral fuse holder.
  • Power Requirements
    • Line Voltage
      Factory set for one of two ranges: 90 to 127 V AC or 180 to 250 V AC, at 48 to 63 Hz (specify when ordering).
  • Power Consumption
    680 VA, maximum.
  • Operating Conditions
    • Temperature
      0 °C to 40 °C.
    • Relative Humidity
      To 85%, noncondensing.
    • Altitude
      To 2000 meters.

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ACCESSORIES SUPPLIED

Operator's manual, Alden 3 m (10 ft) high-voltage output cable assembly (43406), (2) line fuses, and line cord.

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CERTIFICATION & Compliance

Certification
TREK, INC. certifies that each Model 10/10B 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

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.

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