US 12,422,244 B2
Encoder, servo motor, servo system, and encoder control method
Ryo Inoue, Fukuoka (JP); Ikuma Murokita, Fukuoka (JP); Kenichi Sadakane, Fukuoka (JP); Masanobu Harada, Fukuoka (JP); Yuji Arinaga, Fukuoka (JP); and Yasuhiro Matsutani, Fukuoka (JP)
Assigned to KABUSHIKI KAISHA YASKAWA DENKI, Fukuoka (JP)
Filed by KABUSHIKI KAISHA YASKAWA DENKI, Fukuoka (JP)
Filed on Apr. 23, 2024, as Appl. No. 18/643,946.
Application 18/643,946 is a continuation of application No. 17/707,306, filed on Mar. 29, 2022, granted, now 11,994,388.
Claims priority of application No. 2021-066627 (JP), filed on Apr. 9, 2021.
Prior Publication US 2024/0271921 A1, Aug. 15, 2024
Int. Cl. G01B 7/00 (2006.01); G01B 7/30 (2006.01); G01D 5/16 (2006.01); G05B 19/4155 (2006.01); H01M 10/0585 (2010.01); H01M 10/46 (2006.01); H02J 7/00 (2006.01)
CPC G01B 7/30 (2013.01) [G01D 5/16 (2013.01); G05B 19/4155 (2013.01); H01M 10/0585 (2013.01); H01M 10/46 (2013.01); G05B 2219/34013 (2013.01); H02J 7/00712 (2020.01)] 14 Claims
OG exemplary drawing
 
1. An encoder comprising:
an angular position information detector configured to detect angular position information indicating an angular position of a rotating disk within one rotation thereof;
a multi-rotation information detector configured to detect multi-rotation information indicating a number of rotations of the disk;
a battery configured to supply a power to the multi-rotation information detector when an external power is not supplied to the encoder; and
a single processor,
wherein the single processor executes a process of switching between supply of the power from the battery to the multi-rotation information detector and stop of the supply, and a process of performing a predetermined arithmetic process based on the multi-rotation information detected by the multi-rotation information detector,
the power is supplied through the processor from the battery to the multi-rotation information detector to detect the multi-rotation information, when the external power is not supplied, and
the processor stops the supply of the power from the battery to the multi-rotation information detector, after acquiring the multi-rotation information from the multi-rotation information detector.