USB Isolators provide a high-voltage isolation barrier between a computer and a connected USB device. There are situations when we prefer our ground separate. It happens when PC/earth ground is too “dirty” and we don’t want our circuit to pick up this dirt. Sometimes our device’s ground is not too good or even dangerous if connected to earth ground. Sometimes we are trying to overcome ground loops.
The isolation protects equipment from electrical surges and transient voltage spikes. It also eliminates ground loop currents flowing between the PC and peripherals which can cause damage and inaccurate measurements. Additionally, isolation minimizes conducted noise from static discharge, magnetic fields, and radio frequency interference. Isolation improves common-mode voltage, enhances noise rejection, and permits two circuits to operate at different voltage levels. It also tends to save test equipment, as well as PC itself.
USB Port Isolators insert in-line with the USB connection between a PC and connected USB device. The isolator operates transparently and receives power from the PC’s USB port. Installing this isolation barrier eliminates ground loops that can cause measurement errors and safely shields equipment from surges, static discharge, magnetic fields, and radio frequency interference.
PLC Technologies has all the USB port isolators you need to provide protection against harmful noise, ground loops, surges, and spikes. From compact USB port isolators for field service applications to EMC tested rugged isolators for unfriendly electrical environments, our products will keep your computer and data secure and safe.