High Voltage Power Amplifiers


Trek Model 10/10B-HS High-Voltage Power Amplifier

Please note Trek Model 10/10B-HS replaces Trek Model 10/10B.

The Trek Model 10/10B-HS 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-HS 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-HS 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-HS suitable for automated or computer-controlled systems.

The Model 10/10B-HS 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 ±40 mA peak AC for 1 ms.
(See Automatic Power Limit feature for limitations.)

Input Voltage Range
0 to ±10 V DC or peak AC.

Input Impedance
20 kohm, nominal.

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 700 V/µs.

Large Signal Bandwidth (-3dB)
DC to greater than 19.5 kHz.

Large Signal Bandwidth (1% distortion)
DC to greater than 9.5 kHz.

Small Signal Bandwidth (-3dB)
DC to greater than 60 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-HS 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.

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-HS 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-HS 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-HS 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/4 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.

ACCESSORIES SUPPLIED

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

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.

CERTIFICATION & Compliance


TREK, INC. certifies that each Model 10/10B-HS 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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