Title:
ELECTRONIC CIRCUIT, MODULE, AND SYSTEM
Document Type and Number:
Japanese Patent JP2021141797
Kind Code:
A
Abstract:
To provide a convenient electronic circuit that can change a switch with electric power obtained from a weak radio wave.SOLUTION: An electronic circuit comprises: a switch that changes the connection state of a power supply that outputs a DC power and a load; a first antenna that can receive a radio wave; a second antenna that can receive a radio wave; a first power conversion circuit that converts electric power received by the first antenna to a DC power and outputs the DC power from a first DC power output terminal; a second power conversion circuit that converts electric power received by the second antenna to a DC power and outputs the DC power from a second DC power output terminal; and a control circuit that changes the connection state of the switch when the difference between electric power input from a first input terminal and electric power input from a second input terminal is larger than a predetermined value.SELECTED DRAWING: Figure 19
Inventors:
YOSHIDA YOSHIFUMI
KAWAI NOBORU
UTSUNOMIYA FUMIYASU
KAWAI NOBORU
UTSUNOMIYA FUMIYASU
Application Number:
JP2020201342A
Publication Date:
September 16, 2021
Filing Date:
December 03, 2020
Export Citation:
Assignee:
SEIKO HOLDINGS CORP
ABLIC INC
ABLIC INC
International Classes:
H02J50/20; H01Q21/24; H02J50/40; H02M7/10
Attorney, Agent or Firm:
Field Saki Satoshi
Shingo Suzuki
Nishizawa Kazumi
Shingo Suzuki
Nishizawa Kazumi