Power supply system and portable equipment using the same
First Claim
1. A power supply system for supplying portable equipment with electric power, comprising:
- a notification portion;
a power supply for supplying electric power to at least the notification portion, the power supply including a lithium-ion secondary battery;
a temperature detection portion for detecting a temperature of the power supply;
a voltage detection portion for detecting a voltage of the power supply;
a memory portion for storing a first temperature, a first voltage and a second voltage that is smaller than the first voltage; and
a forced discharge portion for recognizing an abnormality of the power supply when the temperature of the power supply detected by the temperature detection portion is not lower than the first temperature and the voltage of the power supply detected by the voltage detection portion is not lower than the first voltage when a power feed from the power supply to the portable equipment for operation of the portable equipment is off, for forcedly discharging the power supply until the voltage of the power supply detected by the voltage detection portion reaches the second voltage, and for electrifying the notification portion by the power supply, thereby making the notification portion continuously notify a message indicating that the abnormality is being avoided while the power supply is forcedly being discharged,wherein the forced discharge portion includes a control portion configured to make the memory portion store data indicating that forced discharge has completed when the forced discharge completed, andthe control portion is further configured to make the notification portion notify a message indicating that the abnormality has been avoided based on the data indicating that the forced discharge is completed, when the power feed from the power supply to the portable equipment for operation of the portable equipment becomes turned on.
3 Assignments
0 Petitions
Accused Products
Abstract
A power supply system for portable equipment has a lithium-ion secondary battery as a power supply, a temperature detection portion for detecting a temperature of the power supply, a voltage detection portion for detecting a voltage of the power supply, a memory portion, and a forced discharge portion. The memory portion stores a control operating temperature, a control operating voltage and a control termination voltage. The forced discharge portion recognizes an abnormality of the power supply when the temperature of the power supply is at least the control operating temperature and the voltage of the power supply is at least the control operating voltage. Then, the forced discharge portion electrifies the notification portion and makes it inform a message indicating that the abnormality is being avoided. The forced discharge portion forcedly discharges the power supply until the voltage of the power supply reaches the control termination voltage.
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Citations
9 Claims
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1. A power supply system for supplying portable equipment with electric power, comprising:
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a notification portion; a power supply for supplying electric power to at least the notification portion, the power supply including a lithium-ion secondary battery; a temperature detection portion for detecting a temperature of the power supply; a voltage detection portion for detecting a voltage of the power supply; a memory portion for storing a first temperature, a first voltage and a second voltage that is smaller than the first voltage; and a forced discharge portion for recognizing an abnormality of the power supply when the temperature of the power supply detected by the temperature detection portion is not lower than the first temperature and the voltage of the power supply detected by the voltage detection portion is not lower than the first voltage when a power feed from the power supply to the portable equipment for operation of the portable equipment is off, for forcedly discharging the power supply until the voltage of the power supply detected by the voltage detection portion reaches the second voltage, and for electrifying the notification portion by the power supply, thereby making the notification portion continuously notify a message indicating that the abnormality is being avoided while the power supply is forcedly being discharged, wherein the forced discharge portion includes a control portion configured to make the memory portion store data indicating that forced discharge has completed when the forced discharge completed, and the control portion is further configured to make the notification portion notify a message indicating that the abnormality has been avoided based on the data indicating that the forced discharge is completed, when the power feed from the power supply to the portable equipment for operation of the portable equipment becomes turned on. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power supply system for supplying portable equipment having a notification portion with electric power, comprising:
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a power supply for supplying electric power to at least the notification portion, the power supply including a lithium-ion secondary battery; a temperature detection portion for detecting a temperature of the power supply; a voltage detection portion for detecting a voltage of the power supply; a memory portion for storing a first temperature, a first voltage and a second voltage that is smaller than the first voltage; and a forced discharge portion for recognizing an abnormality of the power supply when the temperature of the power supply detected by the temperature detection portion is not lower than the first temperature and the voltage of the power supply detected by the voltage detection portion is not lower than the first voltage when the electric power from the power supply to the portable equipment for operation of the portable equipment is off, for forcedly discharging the power supply until the voltage of the power supply detected by the voltage detection portion reaches the second voltage, and for electrifying the notification portion by the power supply, thereby making the notification portion continuously notify a message indicating that the abnormality is being avoided while the power supply is forcedly being discharged, wherein the forced discharge portion includes a control portion configured to make the memory portion store data indicating that forced discharge has completed when the forced discharge completed, and the control portion is further configured to make the notification portion notify a message indicating that the abnormality has been avoided based on the data indicating that the forced discharge is completed, responsive to turning on the electric power from the power supply to the portable equipment for operation of the portable equipment.
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8. Portable equipment comprising:
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a notification portion; a power supply for supplying electric power to at least the notification portion, the power supply including a lithium-ion secondary battery; a temperature detection portion for detecting a temperature of the power supply; a voltage detection portion for detecting a voltage of the power supply; a memory portion for storing a first temperature, a first voltage and a second voltage; a forced discharge portion for recognizing an abnormality of the power supply when the temperature of the power supply detected by the temperature detection portion is not lower than the first temperature and the voltage of the power supply detected by the voltage detection portion is not lower than the first voltage when an electric power from the power supply to the portable equipment for operation of the portable equipment is off, for forcedly discharging the power supply until the voltage of the power supply detected by the voltage detection portion reaches the second voltage, and for electrifying the notification portion by the power supply, thereby making the notification portion continuously notify a message indicating that the abnormality is being avoided while the power supply is forcedly being discharged; and an equipment circuit for operating the portable equipment, the equipment circuit being supplied by the power supply, wherein the forced discharge portion includes a control portion configured to make the memory portion store data indicating that forced discharge has completed when the forced discharge completed, and the control portion is further configured to make the notification portion notify a message indicating that the abnormality has been avoided based on the data indicating that the forced discharge is completed, when the electric power from the power supply to the portable equipment for operation of the portable equipment is turned on. - View Dependent Claims (9)
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Specification