Glossary “pulse trains” Definition:
Repetitive series of pulses

Glossary “pulse width” Definition:
Amount of time the pulse take to go from low to high and back to low again, conventionally measured at 50% of full voltage.

Glossary “Pulse Width Modulation (PWM)” Definition:
1). Method of electronic control where the frequency of the pulses remains the same, but the percentage of “On time” compared to “Off time” varies. 2). Characteristics of a continuous on-and-off cycling solenoid for a fixed number of times per second while the frequency of the cycles remains constant the ratio of on-time to off-time varies or is modulated

Glossary “pulse train” Definition:
DC voltage that turns on and off in a series of pulses.

Glossary “pulse time” Definition:
1). The time duration from the point on the leading edge which is 50% of the maximum amplitude to a point on the trailing edge which is 50% of the maximum amplitude of the signal or wave form. 2). A term used for pulse width.

Glossary “pulse modulated” Definition:
Circuit that maintains average voltage levels by pulsing the voltage on and off.

Glossary “pulse period” Definition:
Term used for pulse width.

Glossary “pulse rate” Definition:
Number of pulses that take place over a specific amount of time

Glossary “pulse ring” Definition:
Ring on the crankshaft to trigger a sensor used to control computer ignition timing.

Glossary “Pulse Air Control Valve” Definition:
Valve which injects fresh air from the air cleaner to the exhaust manifold to control HC and CO emissions.

Glossary “Pulse Air Injection Reaction System” Definition:
Pulse air directed in to the exhaust system to reduce exhaust emissions

Glossary “pulse delay variable resistor” Definition:
Resistor in the electrical circuit of the wiper system used to delay the wiper motion from 0 to 25 seconds.

Glossary “pulse generators” Definition:
Electromagnetic unit that generates a voltage signal used to trigger the ignition control module that controls (turns on and off) the primary ignition current of an electronic ignition system.