US 11,909,337 B2
Dielectric elastomer power generation system
Seiki Chiba, Tokyo (JP); Mikio Waki, Sakura (JP); Makoto Takeshita, Tokyo (JP); and Mitsugu Uejima, Tokyo (JP)
Assigned to Selki Chiba, Tokyo (JP); Mikio Waki, Sakura (JP); and ZEON CORPORATION, Tokyo (JP)
Appl. No. 17/264,845
Filed by Seiki Chiba, Tokyo (JP); Mikio Waki, Sakura (JP); and ZEON CORPORATION, Tokyo (JP)
PCT Filed Jul. 10, 2019, PCT No. PCT/JP2019/027307
§ 371(c)(1), (2) Date Feb. 1, 2021,
PCT Pub. No. WO2020/031600, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 2018-150278 (JP), filed on Aug. 9, 2018.
Prior Publication US 2021/0297013 A1, Sep. 23, 2021
Int. Cl. H02N 2/18 (2006.01); H01L 41/113 (2006.01); H10N 30/30 (2023.01)
CPC H02N 2/181 (2013.01) [H10N 30/30 (2023.02)] 2 Claims
OG exemplary drawing
 
1. A dielectric elastomer power generation system comprising:
a dielectric elastomer power generation element including a dielectric elastomer layer and a pair of electrodes sandwiching the dielectric elastomer layer;
a piezoelectric element;
a multi-stage voltage multiplier/rectifier circuit that boosts and rectifies a voltage generated by the piezoelectric element and applies a resulting voltage to the dielectric elastomer power generation element as initial charge;
a power storage circuit that receives electric power generated by the dielectric elastomer power generation element, and
a switching unit that can perform control of an electrical connection between the dielectric elastomer power generation element and the multi-stage voltage multiplier/rectifier circuit, and an electrical connection between the dielectric elastomer power generation element and the power storage circuit based on a vibration state of the piezoelectric element or a stretched or contracted state of the dielectric elastomer power generation element.