Title:
ＰＷＭ出力装置及びモータ駆動装置
Document Type and Number:
Japanese Patent JP5901926
Kind Code:
B2
Abstract:
A PWM output apparatus includes a calculating circuit configured to calculate an output width of a PWM output signal of a first signal and a second signal, which have phases different from each other, based on a command value of a PWM output. A comparing circuit compares the output width and a reference period which is set longer than a predetermined dead time period. A PWM output signal generating circuit outputs the PWM output signal to a dead time inserting block as a corrected PWM output signal, when a set/clear signal generating circuit outputs the set signal, and carries out a correction of setting the first signal of the PWM output signal to be inactive to output to the dead time inserting block as the corrected PWM output signal, when the set/clear circuit outputs the clear signal. The dead time inserting block corrects the corrected PWM output signal.
Inventors:
Masahiro Minami
Application Number:
JP2011220655A
Publication Date:
April 13, 2016
Filing Date:
October 05, 2011
Export Citation:
Assignee:
Renesas Electronics Corporation
International Classes:
H03K5/05; H02M7/48; H03K7/08
Domestic Patent References:
| JP2004187492A | ||||
| JP2005295743A | ||||
| JP2146963A |
Attorney, Agent or Firm:
Minoru Kudo