User Guide
77
Glossary
pull-up resistor
A resistor that connects an input to a voltage reference so that an open circuit can
be recognized by the microprocessor, which is typically used on active-low digital
inputs or analog inputs.
pulse-width modulation (PWM)
A digital logic circuit programmed to produce a pulse having any desired period
or duty cycle. It is a means of controlling variable speed motors. See also duty
cycle.
sensor power
A regulated voltage output that provides a set voltage level for analog sensors
attached to the product.
short-to-battery
A fault state that occurs when an input or output pin is connected to battery
power, potentially resulting in high current flow.
short-to-ground
A fault state that occurs when an input or output pin is connected to system
ground, potentially resulting in high current flow.
transient voltage suppressor
A Zener diode engineered for high-power current switching. See also
Zener
diode
.
transorb
See transient voltage suppressor.
wake on CAN
A method of power control that makes the product turn on when a CAN message
is received from another module in the system, and turn off as determined by the
application software.
wetting current
The minimum current needed to flow through a mechanical switch to break
through any film of oxidation that may be on the switch contacts.
