QL/XDL DC PSU Driver

The QL/XDL DC PSU driver helps Windows recognize and communicate with a Tti QL/XDL DC power supply through its USB connection. It is intended for users who need to connect the instrument to a PC for use with compatible control or test software, or resolve a missing-driver warning in Device Manager.

Key Features

• USB communication support: Provides the driver layer needed for compatible Windows software to communicate with the connected power supply.
• Device recognition: Helps Windows identify the QL/XDL DC PSU instead of leaving it listed as an unknown USB device.
• Software connectivity: Supports the connection used by compatible instrument-control applications; the driver itself does not replace that software.
• Legacy Windows support: Listed operating systems include Windows 10, 8.1, 7, Vista, and XP. Check the individual package for supported editions and system architecture.

How to Install QL/XDL DC PSU Driver

1. Check your Windows version and architecture. Confirm whether your system uses 32-bit or 64-bit Windows, then review the package requirements. If you are comparing Windows 10/11 compatibility, note that Windows 11 is not included in the supplied support list.
2. Select the appropriate package. Before starting your QL/XDL DC PSU driver download for Windows, verify that the package matches the Tti device and your operating system. If a free download is offered, confirm its source and compatibility before opening it.
3. Prepare the files. Extract the downloaded archive if necessary and read any included instructions. Follow the package guidance on whether to connect the power supply before or after installation.
4. Install the driver. Run the supplied installer, if available. For a manual installation, open Device Manager, locate the device, choose the driver update option, and browse to the extracted driver folder.
5. Verify the connection. Connect and power on the instrument as directed, then check Device Manager for warning icons. Open your compatible control software and confirm that it can detect the power supply.

Keep the driver updated when a compatible release addresses a connection issue or supports changes to your setup. Check the latest version against your exact device and Windows requirements before you update, and retain a working installer in case you need to restore your previous configuration.