High-voltage Power Amplifier

  • Product No:50/12
  • Manufacturer:Trek, Inc.

The Model 50/12 is a DC-stable, high-voltage power amplifier featuring an all solid-state design for high slew rate, wide bandwidth, and low-noise operation. It is designed to provide precise control of output voltages in the range of 0 to ±50 kV DC or peak AC with an output current range of 0 to ±12 mA DC or peak AC.  

The 4-quadrant, active output stage sinks or sources current to reactive or resistive loads throughout the output voltage range.  、This is essential to achieve the accurate output response and high slew rates demanded by reactive loads.


Features and Benefits

Four-quadrant output for driving capacitive loads 

Closed loop system for high accuracy 

Short-circuit protected for equipment protection 

All solid-state design for maintenance free operation 

DC-stable for programmable supply applications 

Low output noise for ultra-accurate outputs

NIST-traceable Certificate of Calibration provided with each uni

CE compliant


Model 50/12 Specifications

Performance

Output Voltage Range:0 to ±50 kV DC or peak AC

Output Current Range:0 to ±12 mA DC or peak AC

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

Input Impedance: 25 kW, nominal (inverting/differential option 50 kW nominal)

DC Voltage Gain: 5000 V/V 

DC Voltage Gain Accuracy: Better than 0.1% of full scale 

Offset Voltage: Less than ±5 V 

Output Noise: Less than 10 V rms*

Slew Rate (10% to 90%, typical): Greater than 350 V/µs

Small Signal Bandwidth (-3dB): DC to greater than 20 kHz

Large Signal Bandwidth (2% distortion):DC to greater than 1.4 kHz

Stability: Drift with Time Less than 50 ppm/hr, noncumulative    

           Drift with TemperatureLess than 100 ppm/°C 


Voltage Monitor

Ratio: 1 V / 5000 V 

DC Accuracy: Better than 0.1% of full scale

DC Offset Voltage: Less than ±4 mV

Output Noise: Less than 20 mV rms* 

Output Impedance: 47 W


Current Monitor

Ratio: 0.5 V/mA 

DC Accuracy: Better than 2% of full scale

Offset Voltage: Less than ±10 mV

Output Noise: Less than 30 mV rms*

Bandwidth (-3dB): DC to greater than 5 kHz

Output Impedance: 47 W


Features 

High-Voltage On/Off

    Local Individual push-button switches

    Remote TTL compatible input. TTL high (or open) turns off  high-voltage output. TTL low turns on highvoltage output. 

Dynamic Adjustment: Graduated 1-turn potentiometer is used to optimize the AC response for various load parameters.

Current Limit/Trip:

Switch selectable for limit or trip. Graduated 1turn panel potentiometer is used to adjust limit or trip level from 0 to ±12 mA. Out of Regulation Status Indicator and Connnector: 

Illuminates and  TTL low is provided when unit fails to produce  required HV output such as during current limit.

Limit/Trip Status Indicator and Connector:

An indicator will illuminate and a BNC will provide a TTL low when the high-voltage output is disabled due to the output current trip level, the detection of a high-voltage power supply fault, removal of one of the panels, or if the Model 50/12 is in an out of regulation status for greater than 500 ms.


Mechanical 

Dimensions: 1473.5 mm H x 628.7 mm W 948.4 mm D (58.01” H x 24.75” W x 37.34” D) 

Weight: 125-136 kg (275-300 lb) 

HV Connector: High Voltage Connector 

BNC Connectors: Amplifier Input, Voltage Monitor, Current Monitor, Remote High Voltage ON/OFF, Out of Regulation Status, Fault/Trip Status


Operating Conditions 

Temperature: 0°C to 40°C (32°F to 104°F) 

Relative Humidity: To 75%, noncondensing

Altitude: To 1524 meters (5000 ft.)


Electrical 

Line: Voltage 180 to 250 V AC at 48 to 63 Hz

Power Consumption: 1800 VA, maximum

AC Line Receptacle: Standard 3-prong with integral fuse holder


Supplied Accessories

Operators Manual PN: 23459 

Shorting BNC Cap PN: B3060

HV Output Cable PN: 43466

Line Cord, Fuses Selected per geographic destination