OUTPUT CIRCUIT FOR POWER SUPPLY SYSTEM
First Claim
Patent Images
1. A power supply system output circuit, comprising:
- a first power path for supplying discharge power being discharged from a plurality of secondary batteries as a first DC power;
a second power path for supplying a second DC power obtained by converting AC power from an AC power supply source using an AC-DC converter circuit; and
an output terminal unit which is connected to the first power path and the second power path and which includes a common output terminal for supplying the first DC power or the second DC power to a DC load via a DC-DC converter circuit, whereinthe first power path supplies the first DC power to the output terminal unit when an amount of stored charge in at least one of the plurality of secondary batteries is greater than a predetermined first reference value, andthe second power path supplies the second DC power to the output terminal unit when the amount of stored charge in at least one of the plurality of secondary batteries is less than the first reference value.
3 Assignments
0 Petitions
Accused Products
Abstract
A power supply system is provided with an output terminal unit including a common output terminal, which, when an amount of stored charge in lithium-ion secondary batteries capable of supplying discharge power as a first DC power to a DC load is greater than a predetermined first reference value, supplies to the DC load the first DC power from the lithium-ion secondary batteries and which, when the amount of stored charge is less than the first reference value, supplies to the DC load a second DC power obtained by converting AC power from a system power supply using an AC-DC converter circuit.
-
Citations
7 Claims
-
1. A power supply system output circuit, comprising:
-
a first power path for supplying discharge power being discharged from a plurality of secondary batteries as a first DC power; a second power path for supplying a second DC power obtained by converting AC power from an AC power supply source using an AC-DC converter circuit; and an output terminal unit which is connected to the first power path and the second power path and which includes a common output terminal for supplying the first DC power or the second DC power to a DC load via a DC-DC converter circuit, wherein the first power path supplies the first DC power to the output terminal unit when an amount of stored charge in at least one of the plurality of secondary batteries is greater than a predetermined first reference value, and the second power path supplies the second DC power to the output terminal unit when the amount of stored charge in at least one of the plurality of secondary batteries is less than the first reference value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification