Title:
POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2020150712
Kind Code:
A
Abstract:
To provide a power supply device capable of appropriately acquiring power using electromagnetic induction from an electric wire.SOLUTION: A power supply device 1 comprises: a coil unit 10 that is provided at a power transmission line 2 supplying power, includes a coil 11 and acquires AC power from the power transmission line 2 via the coil 11 using electromagnetic induction; a rectification circuit 60 that is connected to the coil unit 10 and rectifies AC power acquired by the coil unit 10 to DC power by performing any one of full-wave rectification and half-wave rectification; a Zener diode 20 that is connected to the rectification circuit 60 and outputs DC power obtained by limiting voltage of DC power obtained by rectification of the rectification circuit 60 to certain voltage to a power supply load unit 4; a voltage detection circuit 50 detecting detection voltage Vout of DC power output from the Zener diode 20 to the power supply load unit 4; and a control circuit 70 controlling the rectification circuit 60 to perform full-wave rectification or half-wave rectification on AC power on the basis of the detection voltage Vout detected by the voltage detection circuit 50.SELECTED DRAWING: Figure 1
Inventors:
SHIGENO HIROTAKA
ISHIBASHI KENICHI
TAZAWA KAZUTOSHI
ISHIBASHI KENICHI
TAZAWA KAZUTOSHI
Application Number:
JP2019047139A
Publication Date:
September 17, 2020
Filing Date:
March 14, 2019
Export Citation:
Assignee:
YAZAKI ENERGY SYSTEM CORP
International Classes:
H02M7/06; H02J50/10
Domestic Patent References:
| JPH0473279B2 | 1992-11-20 | |||
| JPH0789693B2 | 1995-09-27 | |||
| JP2001204173A | 2001-07-27 | |||
| JP2006084176A | 2006-03-30 |
Attorney, Agent or Firm:
Toranomon Intellectual Property Office