US 12,032,006 B2
Battery-less sensor circuit
Fumiyasu Utsunomiya, Tokyo (JP); Takakuni Douseki, Kusatsu (JP); Ami Tanaka, Kusatsu (JP); Yasuhiro Hiraga, Kusatsu (JP); and Shunta Furumura, Kusatsu (JP)
Assigned to ABLIC INC., Tokyo (JP)
Filed by ABLIC Inc., Tokyo (JP)
Filed on Oct. 25, 2022, as Appl. No. 17/973,340.
Claims priority of application No. 2021-174588 (JP), filed on Oct. 26, 2021.
Prior Publication US 2023/0130291 A1, Apr. 27, 2023
Int. Cl. G01R 19/165 (2006.01); G01R 19/00 (2006.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01)
CPC G01R 19/1659 (2013.01) [G01R 19/0084 (2013.01); H02J 7/0063 (2013.01); H02J 7/345 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A battery-less sensor circuit, comprising:
a power generation element;
a first switching element;
a voltage control circuit;
a first storage capacitor;
a sensor circuit; and
a load,
wherein the power generation element is connected to the first storage capacitor via the first switching element,
wherein a power supply terminal of the sensor circuit is connected to an input terminal of the first switching element,
wherein the voltage control circuit is configured to control a current passing through the first switching element through reception of a voltage of the input terminal of the first switching element, and
wherein the load is connected to the first storage capacitor and the sensor circuit.