Magnet Power Supplies - GMW Associates Fri, 05 May 2023 23:37:55 +0000 en-US hourly 1 https://wordpress.org/?v=6.3.2 https://gmw.com/wp-content/uploads/2020/04/cropped-favicon-32x32.png Magnet Power Supplies - GMW Associates 32 32 IECO BPS-40-100 https://gmw.com/product/ieco-bps-40-100/ Mon, 22 Feb 2021 23:08:30 +0000 https://gmw1.wpenginepowered.com/?post_type=product&p=15788 Features

• High performance bipolar power supply with ± 40 V, ± 100 A output
• 4-quadrant output operation
• Operation with wide range of loads
• Voltage mode and current mode
• Very low ripple and noise
• Flux gate current transducer for excellent temperature and long term current stability
• Ramp response for different loads tuned from front panel
• Analogue voltage programming of output voltage or current
• Air cooled, 19 ” rack mountable package (5 U), 55 kg (121 lb)

]]> IECO BPS-85-70 https://gmw.com/product/bps-85-70-1/ Fri, 25 Jan 2019 15:59:34 +0000 https://gmw1.wpenginepowered.com/?post_type=product&p=987 Features
  • High performance bipolar power supply with +/- 85 V, +/- 70 A output.
  • Full 4-quadrant output operation.
  • Voltage mode and current mode.
  • Parallel operation in current mode for +/- 85 V and +/- 140 A.
  • Very low switching ripple and noise.
  • Flux gate current transducer for excellent temperature and long term current stability.
  • Ramp response for different loads tuned from front panel.
  • Analogue voltage programming of output voltage or current.
  • Air cooled, 19 ” rack mountable package (5 U), 50 kg (110 lb).
]]> 231HC Amplifier https://gmw.com/product/231hc/ Fri, 25 Jan 2019 08:00:48 +0000 https://gmw1.wpenginepowered.com/?post_type=product&p=988 The GMW 231HC Bipolar Current Amplifier provides a fast response true bipolar current source of up to ±70A, ±160V for GMW Electromagnets including Electromagnets 5403, 5403EG, 5403AC, 3472-70, 3473-70 and 5451. The 231HC integrates a Copley Controls Gradient Amplifier Model 231HC with capacitor bank, auxiliary power supply, cooling fans and National Instruments USB-6251 data acquisition and control module in a 19 inch rack mounting cabinet. Either 16bit resolution USB or direct analog programming of the current output is available. The USB-6251 can also read back Electromagnet current and voltage and magnetic field if a Senis Analog Magnetic Field Transducer is included in the system.

A suitable dc Power Supply is also required, such as the Ametek SGA 160V, 31A. To ramp the 3473-70 Electromagnet at a maximum rate of change of field requires the SGA 160V, 63A Power Supply.

For a complete Bipolar Power Supply System the 231HC and SGA DC Power Supply are mounted in the GMW-RC-1920 Bench Height Rack. Rack space is available for the GMW RMCS-P4 Rack Mounted Computer to enable a complete computer controlled system running under the GMW LVMCTRL LabVIEW Control Software. Refer to the 231HC User Manual for performance examples with GMW Electromagnets.

The 231HC Bipolar Current Amplifier has been discontinued and has no direct replacement. However, GMW now offers IECO BPS-85-70 Bipolar Power Supply for up to 6kW, four quadrant power.

]]> 5971-160 Reversal Switch https://gmw.com/product/5971-160/ Sat, 16 Feb 2019 16:42:49 +0000 https://gmw1.wpenginepowered.com/?post_type=product&p=2792 If field reversal is required when using a a unipolar Power Supply, we offer the 5971-160 Current Reversal Switch. This Switch provides a safe way of reversing the magnets current under either manual or computer control. The built-in USB Interface also provides control fo the Power Supply current, and read back of the Power Supply current and voltage. It will also provide field read back from a Senis Field Transducer if installed.

A complete system typically consists of an appropriate SGA series DC power supply, the GMW 5971-160 Reversal Switch, a Senis magnetic field transducer, an electromagnet and an appropriate computer and software or an external analog programming signal.

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