Introduction

The GX7400 is a dual programmable DC power supply designed for use in any 6U CompactPCI (cPCI) or PXI instrumentation chassis. It provides power for a Unit Under Test (UUT) and it is fully compatible with other ATE tools. The GX7400 occupies three slots of CompactPCI or PXI chassis and is controlled by the host computer bus. AC power is provided using a panel-mounted receptacle. Both channels are fully isolated and can be externally connected in series in order to provide a higher output voltage. The input AC power supports input  voltages of 115VAC and 230VAC making it suitable for worldwide use. The GX7400 model’s  input AC voltage is selectable to be either 115VAC or 230VAC range. The GX7400A model supports an input voltage range from 115VAC to 230VAC (nominal).

Three DC modules are available for the GX7400:

·        0 to 15 V @ 10 A

·        0 to 30 V @ 5 A

·        0 to 60 V @ 2.5 A

Programmable current limits, programmable isolation relays, over-voltage and over-current, and remote sense, are standard for each of the modules.

The fixed modules provide a configurable fixed DC output level rated up to 100W (Marvin Test Solutions no-longer sells the fixed modules), available voltage levels are:

·        3.3VDC @ 10A

·        5VDC @ 10A

·        12VDC @ 8.4A

·        15VDC @ 7.6A

·        28VDC @ 3.6A.

Outputs are routed through an on-board isolation relay and include remote sensing capability.

An illustration of the power supply is shown in the figure GX7400 Power Supply..

The GX7400 receives input AC line power from a connector on the front panel and may be operated from either 115VAC or 230VAC input selected via side-mounted selection switch (GX7400 only).

Note: This switch must be set to the proper operating voltage in order to prevent damage to the instrument.

The GX7400 plugs into Marvin Test Solutions GX7000 or any 6U cPCI/PXI chassis and is controlled via the host computer bus. DC output connectors for the UUT are also located on the front panel of the unit, along with an On/Off switch. The GX7400 is fully enclosed and shielded in order to prevent any Electro Magnetic Interference (EMI) to other instruments in the system.