WCL488 Series Water Cooled Electronic Loads
Operation & Programming Manual
TDI-Dynaload Division
Page 104
402828, Rev. B1
Troubleshooting A methodical or systematic series of steps for locating the cause of a fault
or problem in an electronic circuit or system.
Tuned Circuit
Circuit in resonance at a particular frequency.
U
Uncontrolled
Environment
In thermal and humidity terms this mean to be without heating or air-
conditioning and therefore subject to the normal range of outdoor
conditions. Electronics must generally be “ hardened” for use in such an
environment. In safety terms (for example, UL), a building or space in a
building that is accessible by untrained personnel.
UPS
Uninterruptible Power Supply.
V
VA
Volt Ampere.
VFC
Voltage-To-Frequency Converter.
Device that converts an analog input
voltage into a sequence of digital pulses.
Volt
Unit of voltage.
Volt-ampere
A unit of electric power equal to the product of one volt and one ampere,
equivalent to one watt.
Voltage
Electromotive force or potential difference, usually expressed in volts.
Voltage Drop
Due to current flow, the voltage or difference in potential developed across
a component.
Voltage
Feedback
Voltage feedback where a portion of the output voltage is fed back to the
input of an amplifier.
