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Power supply apparatus
| Details |
Inventors: Uchida, Hiroshi;
Assignee: NEC Corporation (JP)
Primary Examiner: Tibbits; Pia
Assistant Examiner:
Attorney, Agent or Firm: Dickstein, Shapiro Morin & Oshinsky
This provides a power supply apparatus, which detects a battery deterioration without any drop in an output to a load side, at a time of a voltage drop in a usual power supply or a service interruption of a commercial alternating power supply. The power supply apparatus according to the present invention is the power supply apparatus connected to a load circuit 2, and it is provided with: a battery charge controller 52 that is connected to a battery 28 and charges the battery 28 at a first voltage; and a voltage controller 51 that is connected to the load circuit 2 and generates a second voltage and controls the second voltage so as to make a voltage supplied to the load circuit 2 constant. An electric power is supplied to the load circuit 2 from at least one of the battery 28, the battery charge controller 52 and the voltage controller 51. Moreover, it includes a diagnosing circuit 18 for diagnosing the deterioration of the battery 28, in accordance with a battery voltage. |
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DETAILED DESCRIPTION The devices for solving the above-mentioned problems are represented as follows.
Numbers, symbols and the like are affixed to the technical items corresponding to the claims in the representation.
The numbers, the symbols and the like coincide with reference numbers, reference symbols and the like which are affixed to the technical items constituting at least one implementation or a plurality of embodiments among a plurality of implementations or a plurality of embodiments of the present invention, especially, the technical items represented in the drawings corresponding to the implementations or the embodiments.
The numbers, the symbols and the like clarify the correspondence and relation between the technical items noted in the claims and the technical items of the implementations or the embodiments.
However, the above-mentioned correspondence and relation are not intended to imply that the technical items noted in the claims are limited to the technical items in the implementations or the embodiments.
A power supply apparatus according to the present invention is the power supply apparatus connected to a load circuit 2, and it is provided with a battery charge controller 52 that is connected to a battery 28 and charges the battery 28 at a first voltage, an electric power is supplied to the load circuit 2 from the battery 28 or the battery charge controller 52.
Moreover, it includes a diagnosing circuit 18 for diagnosing the deterioration of the battery 28, in accordance with a battery voltage.
It should be noted, the battery 28 is excluded from the battery charge controller 52.
Moreover, a power supply apparatus according to the present invention is the power supply apparatus connected to a load circuit 2, and it is provided with: a battery charge controller 52 that is connected to a battery 28 and charges the battery 28 at a first voltage; and a voltage controller 51 that is connected to the load circuit 2 and generates a second voltage and controls the second voltage so as to make a voltage supplied to the load circuit 2 constant
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Electrical and Wave 
