US 9,812,895 B2
In-vehicle charger
Mao Kawamura, Tokyo (JP); Masayuki Kato, Tokyo (JP); and Mamoru Takikita, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo (JP)
Appl. No. 14/911,054
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Mar. 14, 2014, PCT No. PCT/JP2014/056895
§ 371(c)(1), (2) Date Feb. 9, 2016,
PCT Pub. No. WO2015/052945, PCT Pub. Date Apr. 16, 2015.
Claims priority of application No. 2013-211487 (JP), filed on Oct. 9, 2013.
Prior Publication US 2016/0204648 A1, Jul. 14, 2016
Int. Cl. H02J 7/00 (2006.01); H02J 7/14 (2006.01); H02M 7/06 (2006.01); B60L 11/18 (2006.01); H02M 3/335 (2006.01); H02J 7/02 (2016.01); H02M 1/00 (2006.01)
CPC H02J 7/14 (2013.01) [B60L 11/1805 (2013.01); B60L 11/1812 (2013.01); B60L 11/1816 (2013.01); H02J 7/0077 (2013.01); H02M 7/066 (2013.01); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); H02J 7/022 (2013.01); H02M 3/3353 (2013.01); H02M 3/33553 (2013.01); H02M 2001/0051 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/92 (2013.01); Y02T 90/127 (2013.01); Y02T 90/14 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An in-vehicle charger, comprising:
an AC/DC converter for converting an AC voltage applied from an external power supply into a DC voltage; and
an isolated DC/DC converter for increasing the DC voltage generated by the AC/DC converter and applying the increased DC voltage to a battery for supplying power stored by itself to an electric motor for driving a vehicle, to thereby supply power to the battery,
the isolated DC/DC converter comprising:
a rectifier circuit comprising rectifying diodes that are connected in a full-bridge configuration and are made of a Si semiconductor;
a smoothing circuit; and
a Schottky barrier diode arranged between the rectifier circuit and the smoothing circuit, the Schottky barrier diode being made of a wide bandgap semiconductor and being connected in parallel with the rectifier circuit.