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Products: High Voltage Power Amplifiers

Trek Model 609B-3 High-Voltage Power Amplifier

The Trek Model 609B-3 is a DC-stable, high-voltage power amplifier designed to provide 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 ±2 mA DC or peak AC. The 609B-3 can be configured as a noninverting amplifier, as an inverting amplifier, or as a differential amplifier. The different input configurations are connected into the AMP INPUT receptacle on the rear of the unit.

The Model 609B-3 features a four-quadrant, active output stage that 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 609B-3 is protected against over-voltage and over-current conditions that may be generated by active loads or by output short circuits to ground.

A precision voltage monitor provides a low-voltage representation of the high-voltage output for monitoring purposes, or for use as a feedback signal in a closed-loop system.

The 609B-3 can be operated on a bench top or, with optional hardware, 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 ±2 mA DC or peak AC.
  • Input Voltage Range
    0 to ±10 V DC or peak AC.
  • Noniverting Input Impedance
    10 kohm, nominal.
    • Inverting Input Impedance
      20 kohm, nominal.
    • Differential Input Impedance
      20 kohm, nominal.

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PERFORMANCE

  • DC Voltage Gain Noninverting (A) Configuration
    1000 V/V.

  • DC Voltage Gain Inverting (B) Configuration
    -1000 V/V.

  • DC Voltage Gain Differential Configuration
    Function of the difference between two input signals. Represented by the equation:
  • V out = 1000 [V in (A) - V in (B)]
  • DC Voltage Gain Accuracy
    Better than 0.1% of full scale.
  • Offset Voltage
    Less than ±1 V.
  • Output Noise
    Less than 50 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
  • Slew Rate (10% to 90%, typical)
    Greater than 30 V/µs.
  • Large Signal Bandwidth (1% distortion)
    DC to greater than 400 Hz.
  • Small Signal Bandwidth (-3dB)
    DC to greater than 10 kHz.
  • Settling Time (to 1%)
    Less than 700 µs for a 0 to 10 kV step.
  • Stability
    • Drift with Temperature
      Less than 50 ppm/°C.
    • Drift with Time
      Less than 180 ppm/hr, noncumulative.

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PRODUCT FEATURES

  • Amplifier Input Configuration Programming
    The 609B-3 can be configured as a noninverting amplifier, an inverting amplifier, or a differential amplifier. The different input configurations are wired into the AMP INPUT receptacle on the rear of the unit.
  • External Control Connector
    Connections from customer supplied remote switching devices can turn on and off the high-voltage output and/or the AC power to the unit using a multi-pin connector on the rear of the unit.
  • High-Voltage Switch
    A three-position switch to select ON, OFF or REMOTE.
  • Power Switch
    A three-position switch to select ON, OFF or REMOTE.
  • 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 ±5 mV.
    • Output Noise
      Less than 5 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
    • Output Impedance
      0.1 ohm.

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GENERAL

  • Power Requirements
    • Line Voltage
      Factory set for one of three voltages:
      100 V AC (609B-3-F),
      115 V AC (609B-3-G), or
      230 V AC (609B-3-K)
      (specify when ordering).
    • Power Consumption
      200 VA, maximum.
  • Operating Conditions
    • Temperature
      0 °C to 40 °C.
    • Relative Humidity
      To 85%, noncondensing.
  • Dimensions
    149 mm H x 432 mm W x 370 mm D
    (5.9" H x 17" W x 14.3" D).
  • Weight
    11 kg (24 lb).
  • High-Voltage Output Connector
    Alden high-voltage connector.
  • Amplifier Input
    Four (4) pin connector.
  • Voltage Monitor Connector
    BNC coaxial connector.
  • AC Line Receptacle
    IEC 320 series inlet.

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ACCESSORIES SUPPLIED

Operator’s manual, 4-pin mating connector with 3 meters of cable, Alden 3 meters (10 ft) high-voltage output cable assembly, and line cord.

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CERTIFICATION & Compliance

TREK, INC. certifies that each Model 609B-3 is tested and calibrated to specifications using measurement equipment traceable to the National Institute of Standards and Technology or traceable to consensus standards.

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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