Voltage stack-up converter for electrified vehicle
First Claim
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1. A vehicle comprising:
- an isolated power converter with input terminals coupled to a power source;
a load coupled across a series combination of an output of the isolated power converter and the power source; and
a controller programmed to operate the isolated power converter such that a ratio of power delivered to the input terminals of the isolated power converter to a total power delivered to the load is less than a predetermined ratio.
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Abstract
A power conversion system includes a power converter having output terminals that are electrically isolated from input terminals. The power conversion system further includes a circuit configured to couple a voltage input from a power source to the input terminals, and provide an output voltage to a load that is a series combination of the voltage input and a voltage across the output terminals.
6 Citations
19 Claims
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1. A vehicle comprising:
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an isolated power converter with input terminals coupled to a power source; a load coupled across a series combination of an output of the isolated power converter and the power source; and a controller programmed to operate the isolated power converter such that a ratio of power delivered to the input terminals of the isolated power converter to a total power delivered to the load is less than a predetermined ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power conversion system comprising:
- a power converter having output terminals that are electrically isolated from input terminals; and
a circuit configured to couple a voltage input from a power source to the input terminals, and provide an output voltage to a load that is a series combination of the voltage input and a voltage across the output terminals and a controller programmed to operate the power converter such that a ratio of power delivered to the input terminals of the power converter to a total power delivered to the load is less than a predetermined ratio. - View Dependent Claims (10, 11, 12, 13, 14, 15)
- a power converter having output terminals that are electrically isolated from input terminals; and
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16. A method comprising:
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coupling a power source to an input of an isolated power converter; coupling an output of the isolated power converter in series with the power source to provide power to an electrical load; and operating the isolated power converter at a power level such that a ratio of power provided to the isolated power converter to a total power delivered to the electrical load is less than a predetermined ratio. - View Dependent Claims (17, 18, 19)
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Specification