Title:
SEMICONDUCTOR DEVICE
Document Type and Number:
Japanese Patent JP2020141408
Kind Code:
A
Abstract:
To provide a signal processing circuit for reducing power consumption and outputting a stable output signal in driving a circuit containing a load in which a voltage and a current are constant when an output held in a register is constant and to provide a control circuit including the same with reduced power consumption.SOLUTION: The control circuit includes: at least a signal processing circuit; and a pulse width modulation generator. After holding data to be input to a pulse width modulator by a storage circuit in the signal processing circuit, power supply of unused signal processing circuits is cut off.SELECTED DRAWING: Figure 1
Inventors:
TAKAHASHI KEI
Application Number:
JP2020073894A
Publication Date:
September 03, 2020
Filing Date:
April 17, 2020
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB CO LTD
International Classes:
H03K7/08; H01L21/822; H01L21/8234; H01L27/04; H01L27/088; H01L29/786; H02M3/155; H05B44/00
Domestic Patent References:
| JP2004147435A | 2004-05-20 | |||
| JP2006350608A | 2006-12-28 | |||
| JPH07128417A | 1995-05-19 | |||
| JP2012019682A | 2012-01-26 | |||
| JP2009225649A | 2009-10-01 | |||
| JP2011234519A | 2011-11-17 | |||
| JP2012010574A | 2012-01-12 | |||
| JP2010020598A | 2010-01-28 | |||
| JP2011142621A | 2011-07-21 |