Rotary transformer with integrated power electronics

Abstract

Embodiments of the disclosure provide an electric drive motor system that includes a stationary-side, a rotating-side, and a first mounting and communications structure on the rotating-side. A secondary is winding physically coupled to the first mounting and communications structure. A rectifier system is physically coupled to the first mounting and communication structure.

What is claimed is: 
     
         1 . An electric drive motor system comprising:
 a stationary-side;   a rotating-side;   a first mounting and communications structure on the rotating-side;   a secondary winding physically coupled to the first mounting and communications structure; and   a rectifier system physically coupled to the first mounting and communication structure.   
     
     
         2 . The electric drive motor system of  claim 1  further comprising a first set of electric connectors physically coupled to the first mounting and communications structure. 
     
     
         3 . The electric drive motor system of  claim 2 , wherein the first set of electric connectors electrically couple the secondary winding to the rectifier system. 
     
     
         4 . The electric drive motor system of  claim 3 , wherein the rectifier system further comprises a rectifier circuit in a rectifier assembly housing. 
     
     
         5 . The electric drive motor system of  claim 4 , wherein the rectifier system physically coupled to the first mounting and communication structure comprises the rectifier assembly housing being physically coupled to the first mounting and communications structure. 
     
     
         6 . The electric drive motor system of  claim 5 , wherein a portion of the first set of electric connectors extends through the rectifier assembly housing to the rectifier circuit. 
     
     
         7 . The electric drive motor system of  claim 1 , wherein the first mounting and communications structure comprises a printed circuit board (PCB) having multiple layers. 
     
     
         8 . The electric drive motor system of  claim 7 , wherein the secondary winding is formed in one or more of the multiple layers of the PCB. 
     
     
         9 . The electric drive motor system of  claim 1  further comprising:
 a second mounting and communications structure on the stationary-side; 
 a primary winding physically coupled to the second mounting and communications structure; 
 a rotary transformer compensation system coupled to the second mounting and communications structure; and 
 an inverter system physically coupled to the second mounting and communication structure. 
 
     
     
         10 . The electric drive motor system of  claim 9  further comprising a second set of electric connectors physically coupled to the second mounting and communications structure, wherein the second set of electric connectors electrically couple the primary winding, the rotary transformer compensation system, and the inverter system. 
     
     
         11 . A method of fabricating an electric drive motor system, the method comprising:
 forming a stationary-side;   forming a rotating-side;   forming a first mounting and communications structure on the rotating-side;   forming a secondary winding physically coupled to the first mounting and communications structure; and   forming a rectifier system physically coupled to the first mounting and communication structure.   
     
     
         12 . The method of  claim 11  further comprising forming a first set of electric connectors physically coupled to the first mounting and communications structure. 
     
     
         13 . The method of  claim 12 , wherein the first set of electric connectors electrically couple the secondary winding to the rectifier system. 
     
     
         14 . The method of  claim 13 , wherein the rectifier system further comprises a rectifier circuit in a rectifier assembly housing. 
     
     
         15 . The method of  claim 14 , wherein the rectifier system physically coupled to the first mounting and communication structure comprises the rectifier assembly housing being physically coupled to the first mounting and communications structure. 
     
     
         16 . The method of  claim 15 , wherein a portion of the first set of electric connectors extends through the rectifier assembly housing to the rectifier circuit. 
     
     
         17 . The method of  claim 11 , wherein the first mounting and communications structure comprises a printed circuit board (PCB) having multiple layers. 
     
     
         18 . The method of  claim 17 , wherein the secondary winding is formed in one or more of the multiple layers of the PCB. 
     
     
         19 . The method of  claim 11  further comprising:
 a second mounting and communications structure on the stationary-side; 
 a primary winding physically coupled to the second mounting and communications structure; 
 a rotary transformer system coupled to the second mounting and communications structure; and 
 an inverter system physically coupled to the second mounting and communication structure. 
 
     
     
         20 . The method of  claim 19  further comprising a second set of electric connectors physically coupled to the second mounting and communications structure, wherein the second set of electric connectors electrically couple the primary winding, the rotary transformer compensation system, and the inverter system.