×

Auxiliary drive apparatus and method of manufacturing same

  • US 8,274,173 B2
  • Filed: 12/02/2008
  • Issued: 09/25/2012
  • Est. Priority Date: 12/02/2008
  • Status: Active Grant
First Claim
Patent Images

1. An auxiliary drive circuit comprising:

  • a first energy storage device coupled to a first DC bus and configured to output electrical power to the first DC bus;

    a first DC-to-DC voltage converter coupled to the first DC bus and to a second DC bus, the first DC-to-DC voltage converter configured to convert the electrical power to a first voltage and to output the first voltage to the second DC bus; and

    a second DC-to-DC voltage converter coupled to the second DC bus and coupled to an auxiliary bus, the second DC-to-DC voltage converter configured to convert the first voltage to a second voltage and to provide the second voltage to the auxiliary bus, the auxiliary bus configured to provide an auxiliary voltage to an auxiliary drive system, wherein the second voltage is different from the first voltage;

    wherein the auxiliary drive system comprises a control device configured to independently control a voltage input to an auxiliary load.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×