US 2019/0058346 A1Published application

Electronic apparatus and charging method thereof

AssigneeCompal Electronics, Inc.

InventorShih-Chin Lu

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Abstract

An electronic apparatus and a charging method thereof are provided. The electronic apparatus includes a transmission port, a battery module, an apparatus circuit, a power conversion circuit, a switching circuit, and a control circuit. The transmission port is coupled to an external power apparatus to receive an input power. The apparatus circuit and the battery module are connected to each other in parallel and are coupled to a power bus. Each of the power conversion circuit and the switching circuit is coupled between the transmission port and the power bus. When the external power apparatus is a programmable power supplier and a battery voltage is lower than a reference voltage, the control circuit disables the power conversion circuit, enables the switching circuit to transmit the input power to the power bus, and regulates a voltage value and a current value of the input power dynamically.

Claims19

Dependent claims

An electronic apparatus, comprising:

a transmission port, configured to be coupled to an external power apparatus to receive an input power;
a battery module, coupled to a power bus;
an apparatus circuit, connected in parallel with the battery module and coupled to the power bus;
a power conversion circuit, coupled between the transmission port and the power bus, and configured to convert the input power so as to provide a charging power to the power bus;
a switching circuit, coupled between the transmission port and the power bus, and configured to transmit the input power as the charging power to the power bus;
and
a control circuit, coupled to the transmission port to communicate with the external power apparatus, and detecting a battery voltage of the battery module, wherein when the control circuit determines that the external power apparatus is a programmable power supplier and detects that the battery voltage is lower than a reference voltage, the control circuit disables the power conversion circuit and turns on the switching circuit, and the control circuit regulates a set value of the external power apparatus to regulate a voltage value and a current value of the input power dynamically.

4 more elements

A charging method for an electronic apparatus, wherein the charging method comprises:

receiving an input power by a transmission port of the electronic apparatus coupled to an external power apparatus;
determining whether the external power apparatus is a programmable power supplier by a control circuit of the electronic apparatus communicating with the external power apparatus through the transmission port, and detecting and determining whether a battery voltage of a battery module of the electronic apparatus is lower than a reference voltage through the control circuit;
and
if the external power apparatus is the programmable power supplier and the battery voltage is lower than the reference voltage, the control circuit performing steps of:
disabling a power conversion circuit of the electronic apparatus, and turning on a switching circuit of the electronic apparatus to transmit the input power to the battery module and an apparatus circuit of the electronic apparatus;
and
regulating a set value of the external power apparatus to dynamically regulate a voltage value and a current value of the input power, so as to charge the battery module and supply power to the apparatus circuit.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/806,324Filed 8 Nov 2017
Priority: TW 10612831621 Aug 2017
Published: 21 Feb 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H02J 7/963
In response to battery voltage: in response to battery voltage gradient
H02J 7/34
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: parallel operation in networks using both…
Y02E 60/10
Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation: energy storage using batteries
H02J
Power supply and charging