CHARGING CIRCUIT
First Claim
1. A charging circuit employed in an electronic apparatus for charging a battery of a portable electronic device, comprising:
- a charging control microchip including two control terminals;
a logic control circuit electronically connected to the two control terminals;
a southbridge microchip electronically connected to the charging control microchip and the logic control circuit; and
a basic input/output system (BIOS) electronically connected to the logic control circuit;
wherein the southbridge microchip and the BIOS both control the logic control circuit to set or reset voltage of the two control terminals, the charging control microchip is switched to a charging mode or a data transmission mode according to the voltage of the two control terminals.
1 Assignment
0 Petitions
Accused Products
Abstract
A charging circuit employed in an electronic apparatus is operable to charge a portable electronic device. The charging circuit includes a charging control microchip including two control terminals, a southbridge microchip, a logic control circuit, and a basic input/output system (BIOS). The southbridge microchip and the BIOS are both electronically connected to the logic control circuit to control the logic control circuit to set or reset voltage of the two control terminals, then the charging control microchip is switched to a charging mode or a data transmission mode according to the voltage of the two control terminals.
-
Citations
18 Claims
-
1. A charging circuit employed in an electronic apparatus for charging a battery of a portable electronic device, comprising:
-
a charging control microchip including two control terminals; a logic control circuit electronically connected to the two control terminals; a southbridge microchip electronically connected to the charging control microchip and the logic control circuit; and a basic input/output system (BIOS) electronically connected to the logic control circuit; wherein the southbridge microchip and the BIOS both control the logic control circuit to set or reset voltage of the two control terminals, the charging control microchip is switched to a charging mode or a data transmission mode according to the voltage of the two control terminals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18)
-
-
14. A charging circuit employed in an electronic apparatus for charging a battery of a portable electronic device, comprising:
-
a charging control microchip including two control terminals; a southbridge microchip electronically connected to the charging control microchip; a basic input/output system (BIOS); and a logic control circuit comprising a first metal oxide semiconductor field effect transistor (MOSFET) and a second MOSFET; wherein a gate of the first MOSFET is electronically connected to the southbridge microchip, a source of the first MOSFET is connected to ground, a drain of the first MOSFET is electronically connected to a gate of the second MOSFET, a source of the second MOSFET is connected to ground, a drain of the second MOSFET is electronically connected to the BIOS and the two control terminals.
-
Specification