Gradient Amplifiers

IECO has been designing and manufacturing gradient amplifiers since 1994. Over the years IECO has delivered more than 1200 amplifier systems worldwide to its customers. Amplifiers are utilized in resistive, superconductive and permanent magnet MRI systems, both in human and research scanning systems.

IECO gradient amplifiers have modular design so they can be flexibly matched to a wide range of gradient coils concerning current and voltage. Compact amplifier units can be connected in series or in parallel in Master/Slave operation to gain output voltages up to 1100V and output currents up to 1200A. Multi coil installations can also be supported.

Amplifiers are available in the following standard cabinet configurations, or as single amplifier modules. Amplifier cabinets include a robust AC-Unit with a power factor correction.

XPA-175-350 is IECO's newest gradient amplifier. It is very compact and has three axis in one 19 " unit (5U).

3-Axis Gradient Amplifier

Compact 3-axis gradient amplifier. Bandwidth of over 10 kHz with excellent noise characteristics. Tuning program to load (31 different coils supported) and versatile diagnostics included. 3 phase or 1 phase AC input supported with an external power supply.

XPA-175-350 175Apeak/350Vpeak 483x650x222mm/Single 19" Unit (5U)

Please contact IECO for detailed specification information, at info@ieco.fi.

3-Axis Gradient Amplifier Cabinets

IECO Gradient Amplifier Cabinets are full blown 3-axis gradient systems, including amplifiers, capacitor banks, AC/DC section, and interface to customer's control system. Both 400 and 480 VAC input voltages are supported. 208 VAC is supported with custom version. All hardware is integrated into heavy duty cabinets of 1200 or 1800 mm in height, depending on the configuration. Due to IECO's modular hardware, all models are possible with only 1- or 2-axis configurations, if needed. IECO product range consists currently of the following standard models:

Model	Axis	Peak Current	Rms Current	Peak Voltage	Bandwidth
GPA-200-350	1-3	200 A	100 A	350 V*	> 10 kHz
GPA-200-750	1-3	200 A	100 A	750 V*	> 10 kHz
GPA-400-350	1-3	400 A	200 A	350 V*	> 10 kHz
GPA-400-750	1-3	400 A	200 A	750 V*	> 10 kHz
GPA-550-350	1-3	550 A	250 A	350 V*	> 10 kHz
GPA-550-750	1-3	550 A	250 A	750 V*	> 10 kHz

* load dependent

Power Amplifiers

PA-200-350 200Apeak/350Vpeak Single 19 " Unit
PA-400-350 400Apeak/350Vpeak Single 19" Unit
HC-600 550Apeak/350Vpeak Single 19" Unit
HC-1000 1000Apeak/350Vpeak Double 19" Unit

High Power Amplifiers for Other Uses

For other applications, IECO provides precision high power amplifiers for medical, scientific, and industrial use. Amplifier systems with wide capacity range can be provided, starting from 40 A up to over 2000 A, and with output voltages from 80 V up to 1100 V. Power ranges are from 4 kW up to over 300 kW.

IECO amplifiers are ideal when the application needs fast and precise current waveforms to be driven to the magnet or coils - with excellent fidelity.

Please also check our Precision Bipolar Power Supplies -page for additional information about possible products or systems.

Customized configurations are also possible. Please provide your requirements at info@ieco.fi, and we can propose a suitable amplifier system for your needs!