GW Instek GPD series

GW Instek GPD series

Status	supported
Source code	gwinstek-gpd
Channels	2/3/4
Voltage/current (CH1)	0-30V / 0-3A
Voltage/current (CH2)	0-30V / 0-3A
Voltage/current (CH3)	various
Voltage/current (CH4)	various
Connectivity	USB/serial
Features	memory save/recall, key lock
Website	gwinstek.com

The GW Instek GPD series are 2/3/4 channel programmable linear DC power supplies with USB/serial connectivity.

Devices

Device	Channels	Voltage range	Current range	Power
GPD-2303S	2	0-30 V, 0-30 V	0-3 A, 0-3 A	180 W
GPD-3303S	3	0-30 V, 0-30 V, 2.5/3.3/5.0 V	0-3 A, 0-3 A, 0-3 A	195 W
GPD-4303S	4	0-30 V, 0-30 V, 0-5 V or 5-10 V, 0-5 V	0-3 A, 0-3 A, 0-3 A or 0-1 A, 0-1 A	195 W
GPD-3303D	3	0-30 V, 0-30 V, 2.5/3.3/5.0 V	0-3 A, 0-3 A, 0-3 A	195 W

So far, only the GPD-2303S is supported and tested. Adding support for the other devices should be relatively easy for someone with hardware access, though. Patches welcome!

Hardware

There was two hardware revisions (versions) of these units released. Model numbes did not change so it is difficult to determine whether unit is the "old" or "new" hardware revision. However, at least on GPD-3303S there is slight change to unit front panels; older units have slight space in output jacks between "CH1" and "FIXED" channel, while newer units have even spacing.

It would appear that older hardware revision units have firmware version < v2.00, but this has not been confirmed (based on anecdotal evidence only).

Protocol

See the vendor user manual for details.

Resources

• Specification (PDF)
• Downloads (datasheet, user manuals, drivers, vendor software)