7548 POWER AMPLIFIER

7224 amplifier

 

Up to 100 Apeak, DC - 100kHz Amplifier for Pulse or Continuous Duty

7548 voltage potential

Features

The 7548 power amplifier offers up to 100 Ap power, DC - 100 kHz bandwidth, controlled current or controlled voltage modes of Operation, in a compact 5U size. The 7548 works best with loads of 2 ohms or more. For greater voltage (up to 750Vp) or current, units can be combined in series or parallel.

Typically used as a gradient amplifier in small bore, high gain MRI systems of up to 100 Ap per axis and to reproduce waveforms found in EMC standards like MIL 704.

Optional "P" version offers precision control of output offset, DC drift and gain linearity.

 

 

  • CONTROLLED VOLTAGE
  • CONTROLLED CURRENT
  • FREQUENCY DATA
  • PHYSICAL CHARACTERISTICS

AC Specifications

Standard
Ohms

PEAK OUTPUT
RMS OUTPUT
40mSec Pulse,
20% Duty Cycle		 5 Min,
100% Duty Cycle		 1 Hr,
100% Duty Cycle		 5 Min,
100% Duty Cycle		 1 Hr,
100% Duty Cycle
Volts Amps Volts Amps Volts Amps Volts Amps Volts Amps Watts
open 200 0 200 0 200 0 141 0 141 0 0
16 195 12 195 12 195 12 138 8 138 8 1170
8 183 23 183 23 183 23 129 16 129 16 2104
4 165 41 165 41 165 41 117 29 117 29 3381
2 150 75     86 43 0 0 61 30 1848
1.5 134 90  
1 116 105  
0.5 66 112  

Optional High-Current (HC) Version
Ohms

PEAK OUTPUT
RMS OUTPUT
40mSec Pulse,
20% Duty Cycle		 5 Min,
100% Duty Cycle		 1 Hr,
100% Duty Cycle		 5 Min,
100% Duty Cycle		 1 Hr,
100% Duty Cycle
Volts Amps Volts Amps Volts Amps Volts Amps Volts Amps Watts
2 55 39 55 28 55 28 39 20 39 20 770
1 51 36 51 51 48 48 36 36 34 34 1152
0.5 26 52 26 52 26 52 18 37 18 37 676

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7548 Frequency Response chart

7548 Voltage Potential

7548 DC Power

 

Indicators and Controls

Front Panel7796 amplifier front panel controls

LED Displays Indicate: Ready, Standby, and Fault Conditions in the output stage

LCD Display: Lists type of Fault Condition and gives suggested corrective action; User-configurable for up to four simultaneous displays reporting, one, two or all four of the following: Voltage Peak, Voltage RMS, Current Peak, and Current RMS

Soft Touch Switch: Places amplifier in Run or Standby mode

Back Panel

Signal Output: +/Common/Sampled Common

Signal Input: User Selectable BNC or Barrier Strip, Balanced

7548 amplifier back panelCommunication Capabilities

Current Monitor: +/- 1V / 20A +/- 1%

Voltage Monitor: +/- 1V / 20V +/- 1%

Physical Characteristics

Chassis: Black, all-aluminum chassis is designed for stand-alone or rack-mounted operation. The unit occupies five EIA 19-inch-wide units.

Weight: 103 lbs (46.7 kg)

AC Power: Three phase, 208 VAC (+/-10%), 47-60 Hz, 30A AC service (400 VAC (+/-10%), 15A version available)

Cooling: Internal forced-air fans, 250 cfm.

Dimensions: 19 in. x 22.8 in. x 8.75 in. (48.3 cm x 57.9 cm x 22.25 cm)

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