Title:
CONTROL CIRCUIT, AND, CONTROL METHOD OF CONTROL CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/066215
Kind Code:
A1
Abstract:
The present invention reduces, by means of a simple configuration, noise induced by switching in a circuit for amplifying a pulse signal by a switching amplifier. A control data output unit outputs control data that instructs pulse width modulation for each of a pair of pulse signals. A data replacement unit replaces the control data with replacement data different from the control data, when the control data is output which instructs modulation to allow each pulse width of the pair of pulse signals to be approximately the same. A pulse-width modulation circuit modulates each of the pair of pulse signals according to the replacement data. One pair of switching amplifiers amplifies the modulated pair of pulse signals.
Inventors:
MIYAZAKI DAISUKE (JP)
Application Number:
PCT/JP2017/027614
Publication Date:
April 12, 2018
Filing Date:
July 31, 2017
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H03F1/26; H03F3/217
Foreign References:
| JP2011082930A | 2011-04-21 | |||
| JP2013153318A | 2013-08-08 | |||
| JP2004048333A | 2004-02-12 | |||
| US20090058549A1 | 2009-03-05 |
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (JP)
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