Title:
COMPOSITE RESONANCE CIRCUIT DRIVING CONTROL DEVICE AND NON-CONTACT POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2022175029
Kind Code:
A
Abstract:
To perform control to obtain an optimum operational frequency by using information on a power transmission side only, within a shorter period of time than that in a conventional technology.SOLUTION: A composite resonance circuit driving control device according to the present invention drivingly controls a composite resonance circuit consisting of a plurality of LC resonance circuits including inductances L of electromagnetically coupled power transmission/reception coils. The composite resonance circuit driving control device includes: an inverter circuit that drives the composite resonance circuit by switching an input DC power by a prescribed operational frequency to convert the DC power to AC power; an input current detector that detects an input current in the inverter circuit; and a frequency control and driving unit that drives the inverter circuit by generating a driving signal for the inverter circuit while changing the operational frequency by using a prescribed extreme value retrieving method, and retrieves the resonance frequency of the composite resonance circuit on the basis of the detected input current, and sets the operational frequency on the basis of the retrieved resonance frequency.SELECTED DRAWING: Figure 1
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Inventors:
MISHIMA TAICHI
ITO YUKI
NAGAOKA SHINGO
UEMATSU TAKESHI
ITO YUKI
NAGAOKA SHINGO
UEMATSU TAKESHI
Application Number:
JP2021081139A
Publication Date:
November 25, 2022
Filing Date:
May 12, 2021
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
H02J50/12; H02J7/00; H02J50/80
Attorney, Agent or Firm:
Takuji Yamada
Hidehiro Tokuyama
Mitsuo Wada
Hidehiro Tokuyama
Mitsuo Wada