Method and apparatus for providing uninterruptible power
First Claim
1. An uninterruptible power supply for providing power to a load, the uninterruptible power supply comprising:
- an input to receive input power;
an output to provide output power;
a plurality of battery modules that provide backup power;
a power circuit coupled to the input, coupled to the plurality of battery modules and coupled to the output to provide power derived from at least one of the input power and the backup power to the output;
a controller;
a return line coupled to the controller and coupled to each of the plurality of battery modules; and
a first sense line coupled to the controller and coupled to each of the plurality of battery modules;
wherein each respective battery module of the plurality of battery modules is configured and arranged to simultaneously provide a respective signal on a respective characteristic signal line that is coupled to the first sense line, wherein the controller is configured to determine a numeric quantity of battery modules in the plurality of battery modules based on the respective signals detected by the controller on the first sense line, wherein each respective battery module of the plurality of battery modules includes a resistor coupled between the respective characteristic signal line of the respective battery module and the return line, and wherein the controller detects a voltage across the first sense line and the return line and determines a total capacity of the plurality of battery modules based on the voltage detected.
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Accused Products
Abstract
Methods and apparatus for providing uninterruptible power are provided by aspects of the invention. One aspect is more particularly directed to an uninterruptible power supply for providing power to a load. The uninterruptible power supply includes an input to receive input power, an output to provide output power, a plurality of battery modules that provide backup power, a power circuit coupled to the input, coupled to the plurality of battery modules and coupled to the output to provide power derived from at least one of the input power and the backup power to the output, a controller, a return line coupled to the controller and coupled to each of the battery modules, and a first sense line coupled to the controller and coupled to the plurality of battery modules. The controller and each of the battery modules are configured and arranged such that at least one characteristic of the battery modules is determined by the controller based on signals detected by the controller on the first sense line.
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Citations
35 Claims
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1. An uninterruptible power supply for providing power to a load, the uninterruptible power supply comprising:
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an input to receive input power; an output to provide output power; a plurality of battery modules that provide backup power; a power circuit coupled to the input, coupled to the plurality of battery modules and coupled to the output to provide power derived from at least one of the input power and the backup power to the output; a controller; a return line coupled to the controller and coupled to each of the plurality of battery modules; and a first sense line coupled to the controller and coupled to each of the plurality of battery modules; wherein each respective battery module of the plurality of battery modules is configured and arranged to simultaneously provide a respective signal on a respective characteristic signal line that is coupled to the first sense line, wherein the controller is configured to determine a numeric quantity of battery modules in the plurality of battery modules based on the respective signals detected by the controller on the first sense line, wherein each respective battery module of the plurality of battery modules includes a resistor coupled between the respective characteristic signal line of the respective battery module and the return line, and wherein the controller detects a voltage across the first sense line and the return line and determines a total capacity of the plurality of battery modules based on the voltage detected. - View Dependent Claims (2, 3, 4)
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5. An uninterruptible power supply for providing power to a load, the uninterruptible power supply comprising:
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an input to receive input power; an output to provide output power; a plurality of battery modules that provide backup power; a power circuit coupled to the input, coupled to the plurality of battery modules and coupled to the output to provide power derived from at least one of the input power and the backup power to the output; a controller; a return line coupled to the controller and coupled to each of the plurality of battery modules; and a first sense line coupled to the controller and coupled to each of the plurality of battery modules; wherein the controller and each of the plurality of battery modules are configured and arranged such that at least one characteristic of the plurality of battery modules is determined by the controller based on signals simultaneously detected by the controller on the first sense line, and wherein the signals are provided simultaneously by each of the plurality of battery modules on the first sense line; and wherein the at least one characteristic of the plurality of battery modules determined includes a total numeric quantity of battery modules in the plurality of battery modules. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 25)
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17. An uninterruptible power supply for providing power to a load, the uninterruptible power supply comprising:
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an input to receive input power; an output to provide output power; a plurality of battery modules that provide backup power, each respective battery module of the plurality of battery modules simultaneously providing a respective signal on a respective characteristic signal line; a power circuit coupled to the input, coupled to the plurality of battery modules and coupled to the output to provide power derived from at least one of the input power and the backup power to the output; a return line coupled to each of the plurality of battery modules; a first sense line coupled to the respective characteristic signal line of each of the plurality of battery modules; and means for determining a numeric quantity of battery modules in the plurality of battery modules based on the respective signals simultaneously received on the first sense line. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 26, 27)
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28. A method of monitoring devices in an uninterruptible power supply having an input that receives input power, a plurality of battery modules that provide backup power, and an output that provides output power derived from at least one of the input power and the backup power, the method comprising:
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coupling a first sense line to each of the plurality of battery modules; coupling a return line to each of the plurality of battery modules; simultaneously providing an output from each respective battery module of the plurality of battery modules on a respective characteristic signal line; and determining a numeric quantity of battery modules in the plurality of battery modules based on a voltage level detected on the first sense line. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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Specification