Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POWER CONVERTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/008850
Kind Code:
A1
Abstract:
In order to provide a power converter device capable of accurately estimating the load voltage applied to a load (1) without directly detecting the same, this power converter device is provided with a control circuit (11) having a means for estimating the load voltage applied to a load on the basis of the electric current in a resonant circuit (3), the alternating circuit frequency in an inverter (5), and the capacitance of the load (1); or, having a means for estimating the load voltage on the basis of the electric current in the resonant circuit (3), the alternating circuit frequency in the inverter (5), the inductance of a resonant coil (2), and a corrected coefficient determined in advance from the relationship between the voltage of the resonant coil (2) and the load voltage. The control circuit (11) controls the load voltage to a target voltage on the basis of the estimated load voltage.

More Like This:
Inventors:
ASAKURA Ryota (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
SAKASHITA Tomokazu (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
INOUE Takahiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2018/014050
Publication Date:
January 10, 2019
Filing Date:
April 02, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02M7/48; F02P3/01; H02M3/155; H02M3/28
Foreign References:
JP2016166535A2016-09-15
JP2017093130A2017-05-25
Attorney, Agent or Firm:
OIWA Masuo et al. (35-8, Minamimukonoso 3-chomeAmagasaki-sh, Hyogo 33, 〒6610033, JP)
Download PDF: