US 9,812,991 B2
Insulating structure for power conversion device
Kazunori Morita, Mishima (JP)
Assigned to MEIDENSHA CORPORATION, Tokyo (JP)
Appl. No. 15/106,947
Filed by MEIDENSHA CORPORATION, Tokyo (JP)
PCT Filed Nov. 13, 2014, PCT No. PCT/JP2014/080020
§ 371(c)(1), (2) Date Jun. 21, 2016,
PCT Pub. No. WO2015/098336, PCT Pub. Date Jul. 2, 2015.
Claims priority of application No. 2013-268570 (JP), filed on Dec. 26, 2013.
Prior Publication US 2017/0237361 A1, Aug. 17, 2017
Int. Cl. H02P 1/00 (2006.01); H02M 7/539 (2006.01); H02M 1/084 (2006.01); H03K 17/691 (2006.01); H03K 17/78 (2006.01)
CPC H02M 7/539 (2013.01) [H02M 1/084 (2013.01); H03K 17/691 (2013.01); H03K 17/78 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An insulating structure for a power conversion device comprising:
a control device of an inverter configured by a semiconductor switching device, the control device having
a control circuit unit that generates a gate signal; and
a gate drive circuit unit that inputs the generated gate signal through an optical transmission unit and controls the semiconductor switching device; and
a relay unit provided between the control circuit unit and the gate drive circuit unit, the relay unit having
an optical transmission unit;
a signal processing unit; and
a power generating unit, and wherein
the gate signal generated by the control circuit unit is inputted into the signal processing unit of the relay unit through the optical transmission unit, and an output from the signal processing unit is inputted into the gate drive circuit unit through the optical transmission unit, and
AC power being supplied to the power generating unit of the relay unit from a control device AC power source through a transformer, and the AC power being supplied to the gate drive circuit unit from the power generating unit of the relay unit through a different transformer.