Alternator jump charging system
First Claim
1. A system for charging a first source having a positive and a negative terminal from a second source having a positive and a negative terminal, the system comprising:
- an alternating current (ac) voltage source having an internal inductance;
a switching power converter having a first set of terminals coupled to the ac voltage source and a second set of terminals coupled to the positive and negative terminals of the first source;
a control circuit coupled to said switching power converter;
a connecting system for selectively connecting the positive terminal of the second source to the ac voltage source; and
a jump charging controller coupled to said control circuit, said jump charging controller operative to enable said switching power converter to be used in conjunction with the ac voltage source inductances as a dc/dc converter to charge the first source from the second source.
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Accused Products
Abstract
A system for charging a first source from a second source includes an alternating current (ac) voltage source having an internal inductance, a switching power converter coupled to the ac voltage source and the first source, a control circuit coupled to the switching power converter, a connecting system for selectively connecting a positive terminal of the second source to the ac voltage source and a jump charging controller coupled to the control circuit and operative to enable the switching power converter to be used in conjunction with the ac voltage source inductances as a dc/dc converter to charge the first source from the second source.
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Citations
19 Claims
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1. A system for charging a first source having a positive and a negative terminal from a second source having a positive and a negative terminal, the system comprising:
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an alternating current (ac) voltage source having an internal inductance;
a switching power converter having a first set of terminals coupled to the ac voltage source and a second set of terminals coupled to the positive and negative terminals of the first source;
a control circuit coupled to said switching power converter;
a connecting system for selectively connecting the positive terminal of the second source to the ac voltage source; and
a jump charging controller coupled to said control circuit, said jump charging controller operative to enable said switching power converter to be used in conjunction with the ac voltage source inductances as a dc/dc converter to charge the first source from the second source. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for charging a battery coupled to an output of a switching power converter comprising:
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an ac machine coupled to an input of the switching power converter;
a charging source having a positive terminal and a negative terminal; and
connecting means for selectively connecting the positive terminal of the charging source to said ac machine. - View Dependent Claims (8, 9, 10)
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11. A method for charging a battery at an output of a switched-mode rectifier comprising the steps of:
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(a) connecting a positive terminal of a charging source to an ac machine;
(b) connecting a negative terminal of the charging source to system ground;
(c) increasing a current in the ac machine to draw a first amount of energy from the charging source;
(d) storing the first amount of energy in inductive elements of the ac machine; and
(e) transferring the first amount of energy plus additional energy from the charging source to the battery. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A system for charging a battery coupled to an output of a switching power converter from a charging source having a positive terminal and a negative terminal comprising:
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an ac machine coupled to an input of the switching power converter; and
connecting means for selectively connecting the positive terminal of the charging source to said ac machine, wherein said connecting means is coupled to a neutral point of said ac machine.
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Specification