Direct current motor speed control apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 18, 1996
Issued Date -
N/A
app pub date -
May 31, 1994
filing date -
May 4, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A DC motor control system reduces power demands imposed upon a DC power source energizing a utilizing device by varying the time during which power application occurs, but not the magnitude of the power which remains constant. The DC motor control system includes a transducer/resistor network, a trigger pulse circuit, a control signal circuit, a driver circuit, and a switch network. The control signal circuit outputs a duty cycle control signal as regulated by the transducer/resistor network and the trigger pulse circuit. The transducer/resistor network permits an operator to determine the duration of the duty cycle control signal, which varies from 0% to 100%, while the trigger pulse circuit establishes the frequency of the duty cycle control signal. The driver circuit receives and amplifies each duty cycle control signal outputted by the control signal circuit. The driver circuit inputs each amplified duty cycle control signal into the switch network to activate it. The activation of the switch network completes a current path from the DC power source to the utilizing device so that the DC power source energizes the utilizing device for the duration of each duty cycle control signal.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully