POWER SUPPLY AND POWER CONTROL METHOD THEREOF
First Claim
1. A power supply, adapted to be coupled to a load, comprising:
- a battery having an output end;
an amplifying circuit having a first input end, a second input end and an output end, with the first input end coupled to an output end of the power supply, and the second input end coupled to the output end of the battery, wherein, when the load is coupled to the output end of the power supply, the amplifying circuit generates a first output voltage according to a voltage difference between the first input end and the second input end; and
a control circuit coupled to the battery and the amplifying circuit to control the battery in providing a second output voltage according to the first output voltage, such that the load is charged at the second output voltage.
1 Assignment
0 Petitions
Accused Products
Abstract
A power supply and a power control method thereof are provided. The power supply is adapted to be coupled to a load. The power supply includes a battery, an amplifying circuit, and a control circuit. The amplifying circuit receives a load voltage from an output end of the power supply. The amplifying circuit receives a battery voltage from an output end of the battery. When the load is coupled to the output end of the power supply, the amplifying circuit provides a first output voltage according to a voltage difference between the load voltage and the battery voltage. The control circuit controls the battery according to the first output voltage in providing a second output voltage, such that the load is charged at the second output voltage.
-
Citations
15 Claims
-
1. A power supply, adapted to be coupled to a load, comprising:
-
a battery having an output end; an amplifying circuit having a first input end, a second input end and an output end, with the first input end coupled to an output end of the power supply, and the second input end coupled to the output end of the battery, wherein, when the load is coupled to the output end of the power supply, the amplifying circuit generates a first output voltage according to a voltage difference between the first input end and the second input end; and a control circuit coupled to the battery and the amplifying circuit to control the battery in providing a second output voltage according to the first output voltage, such that the load is charged at the second output voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A power control method, adapted for use with a power supply equipped with a battery, the method comprises the steps of:
-
receiving a load voltage from an output end of the power supply; receiving a battery voltage from an output end of the battery; providing a first output voltage according to a voltage difference between the load voltage and the battery voltage when a load is coupled to the output end of the power supply; and controlling the battery in providing a second output voltage according to the first output voltage to allow the load to be charged at the second output voltage. - View Dependent Claims (12, 13, 14, 15)
-
Specification