Title:
非接触給電装置
Document Type and Number:
Japanese Patent JP6857665
Kind Code:
B2
Abstract:
A non-contact power supply device (1) that comprises: a non-contact power supply unit (2) that supplies alternating-current power in a non-contact manner; a non-contact power reception unit (3) that receives alternating-current power in a non-contact manner; a direct-current transformation circuit (5) that transforms direct-current received voltage (VR) obtained from the non-contact power reception unit into direct-current load voltage (VL) and supplies the direct-current load voltage to an electrical load (9) and that also performs a reverse-direction boosting operation when the electrical load is regenerating power; an overvoltage detection unit (6) that detects when the direct-current received voltage has reached a prescribed overvoltage-determining threshold voltage (Vlmt) and then generates a cutoff signal (Sc); and a reverse-direction cutoff unit (7) that, during normal times, allows conduction between the direct-current transformation circuit and the electrical load and, when the cutoff signal has been generated, cuts off a reverse direction that goes from the electrical load to the direct-current transformation circuit. Because the direct-current received voltage does not increase after exceeding the threshold voltage, a protection function operates on regenerative power.
Inventors:
Nomura Soshi
Shinichi Kato
Shinichi Kato
Application Number:
JP2018546069A
Publication Date:
April 14, 2021
Filing Date:
October 18, 2016
Export Citation:
Assignee:
Fuji corporation
International Classes:
H02J50/12; H02H3/20; H02H7/12; H02M3/155
Domestic Patent References:
| JP9107075A | ||||
| JP2014007909A | ||||
| JP2014121137A | ||||
| JP2003209903A | ||||
| JP54108250A |
Foreign References:
| WO2012056719A1 |
Attorney, Agent or Firm:
Patent business corporation Kyoritsu