Vansco VMM3120, Руководство пользователя

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76 VMM3120
Glossary
frequency input
An input that allows a frequency value to be read from an oscillating input signal.
gain
To increase the voltage level of an input signal to maximize the resolution of an
input.
ground level shift
An undesirable condition in which the ground level elevates. This condition can
cause inputs to activate when they shouldn't.
half-bridge
The simultaneous use of a high-side switch and a low-side switch in order to
provide a load having both a battery voltage and a ground.
H-bridge
A combination of two half-bridge circuits used together to form one circuit. H-
bridges provide current flow in both directions on a load, allowing the direction of
a load to be reversed.
high-side output
An output that provides switched battery voltage to an external load.
hysteresis
The tendency, either by nature or design, for a device or system to remain
temporarily (lag) in one state before switching to another. Hysteresis might be
intentionally added to electronic circuits prevent unwanted rapid switching. A
furnace, for example, is designed to remain on or off for some time after the room
temperature reaches the thermostat's set point.
inductive load
A load that produces a magnetic field when energized. Inductors are electrical
components that store energy and are characterized by the following equation:
E
stored
LI
2
2
1
load
Any component that draws current from a module and is typically switched on
and off with outputs. Examples include bulbs, solenoids, motors, etc.
logic power
Power pins for the microprocessor and logic peripherals.