System and method for charging auxiliary batteries
First Claim
1. A system for charging an auxiliary battery that drives an auxiliary load, said system comprising:
- a regulator for providing a charge current to said auxiliary battery, wherein the charge current is variable dependent on a parameter of a control signal; and
a control device for decoupling said auxiliary battery from said auxiliary load, and then providing the parameter of the control signal to said regulator dependent on a voltage across the regulator.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for charging an auxiliary battery (107) that drives an auxiliary load (109) includes a regulator (111'"'"', 223) coupled to an auxiliary battery (107). The regulator (111'"'"', 223) provides a charge current (121'"'"') that is variable dependent on a parameter of a control signal (203). Preferably, the parameter is an amplitude. A switch (113'"'"') provides a coupling and a decoupling between the auxiliary battery (107) and the auxiliary load (109). A control device (115'"'"') decouples the auxiliary battery (107) from the auxiliary load (109) via the switch (113'"'"'), and then provides the control signal (203) to the regulator (111'"'"', 223). By effecting this action, the regulator (111'"'"', 223) provides the variable charge current (121'"'"') to the auxiliary battery (107) dependent on the amplitude of the control signal (203).
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Citations
26 Claims
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1. A system for charging an auxiliary battery that drives an auxiliary load, said system comprising:
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a regulator for providing a charge current to said auxiliary battery, wherein the charge current is variable dependent on a parameter of a control signal; and a control device for decoupling said auxiliary battery from said auxiliary load, and then providing the parameter of the control signal to said regulator dependent on a voltage across the regulator. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for charging an auxiliary battery that drives an auxiliary load, said system comprising:
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regulator means having a control input and an output, wherein the output is coupled to said auxiliary battery for providing a charge current variable dependent on a parameter of a control signal provided to the control input; switch means for providing a coupling and a decoupling between said auxiliary battery and said auxiliary load, responsive to a command signal; and control means for providing the command signal that decouples said auxiliary battery from said auxiliary load via said switch means, and responsive thereto, for providing the control signal dependent on a voltage present across said regulator means. - View Dependent Claims (8, 9, 10, 11, 12, 26)
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13. A system for charging an auxiliary battery that drives an auxiliary load, said system comprising:
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a current regulator having a control input and an output, wherein the output is coupled to said auxiliary battery for providing a charge current variable dependent on an amplitude of a control signal provided to the control input; a switch for providing a coupling and a decoupling between said auxiliary battery and said auxiliary load, responsive to a command signal; and a control device for providing the command signal that decouples said auxiliary battery from said auxiliary load via said switch, and responsive thereto, for providing the control signal, dependent on a voltage present across said current regulator. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for charging an auxiliary battery that drives an auxiliary load, said method comprising the steps of:
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decoupling said auxiliary battery from said auxiliary load; and
thenproviding a variable charge current to said auxiliary battery wherein an amplitude of the variable charge current is dependent on a difference in terminal voltage across a current regulator that provides the variable charge current and said auxiliary load. - View Dependent Claims (20, 21, 22, 23)
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24. A system for charging an auxiliary battery that drives an auxiliary load, the system comprising:
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a primary battery; a regulator coupled between the primary battery and the auxiliary battery for providing a charge current from the primary battery to the auxiliary battery, wherein the charge current is variable dependent on a control signal; and a control device for decoupling the auxiliary battery from the auxiliary load, and then for providing the control signal dependent on a power dissipation of the regulator.
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25. A system for charging an auxiliary battery that drives an auxiliary load, the system comprising:
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a primary battery; a regulator coupled between the primary battery and the auxiliary battery for providing a charge current from the primary battery to the auxiliary battery, wherein the charge current is variable dependent on a control signal; and a control device for decoupling the auxiliary battery from the auxiliary load, and then for providing the control signal dependent on a voltage difference between the primary battery and the auxiliary battery.
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Specification