Motor control circuit
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Jun 28, 2022
Grant Date -
Oct 28, 2021
app pub date -
Apr 26, 2021
filing date -
Apr 26, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present disclosure is related to ensuring a period for detecting a phase current from a DC bus current of an inverter. A motor control circuit of the present disclosure includes: a voltage command generator and a PWM signal generator. The voltage command generator detects a phase current from a DC bus current of an inverter driving an AC motor, and generating three-phase voltage commands. The PWM signal generator generates three-phase PWM signals to the inverter according to a comparison result of the three-phase voltage commands and a triangular wave signal with a predetermined frequency and outputs the three-phase PWM signals to the inverter. The PWM signal generator corrects a maximum or minimum voltage command by synchronizing the maximum or minimum voltage command with an intermediate command in a first period of multiple consecutive PWM periods.
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