Power supply device and power supply method thereof

Abstract

A power supply device and a power supply method thereof. The power supply device includes a power source and a power module, the power module including a battery. The power source supplies power to a load through the power module. The power module, based on the load's power consumption and the battery's charge level, outputs a first power supplied by the power source to the load and the battery to supply power to the load and charge the battery, or outputs a second power supplied by the battery together with the first power supplied by the power source to the load to supply power to the load.

Claims

1. A power supply device, comprising: One power source provides the first source of electricity; The power module includes an input interface and an output interface, the input interface being coupled to the output interface via a power supply path, the power module being coupled to a power source via the input interface and to a load via the output interface, the power source supplying power to the load via the input interface, the power supply path and the output interface, the power module including: a battery providing a second power source; A charge / discharge control circuit is coupled between the power supply path and the battery. When the power consumption of the load is lower than a preset power consumption and the battery charge is lower than a preset charge, the charge / discharge control circuit outputs a first power to the load and the battery. When the power consumption of the load exceeds the preset power consumption, the charge / discharge control circuit outputs a second power along with the first power to the load through the power supply path. When the power consumption of the load exceeds the preset power consumption and the battery charge is lower than the preset charge, the charge / discharge control circuit disconnects the connection between the battery and the power supply path.

2. The power supply device as claimed in claim 1, wherein the charge / discharge control circuit comprises: A selection circuit, coupled to the power supply path, and coupled to the battery through a charging path and a discharging path; a boost circuit, coupled to the selection circuit and the battery, disposed on the discharging path, boosts the voltage provided by the battery to power the load. A control circuit coupled to the selection circuit controls the selection circuit to connect the power supply path to the charging path or the discharging path, or disconnect the power supply path from the charging path and the discharging path, based on the power consumption of the load and the battery charge.

3. The power supply device as claimed in claim 2, wherein the charge / discharge control circuit further includes: A first current detection circuit, coupled to the power supply circuit and the control circuit, detects the current in the power supply path; A second current detection circuit is coupled to the battery and the control circuit to detect the charging current in the charging path and the discharging current in the discharging path. The control circuit determines the power consumption of the load and the battery capacity based on the current detection results of the first current detection circuit and the second current detection circuit.

4. The power supply device as claimed in claim 1, wherein the input interface includes a first input connector and a second input connector, and the output interface includes a first output connector and a second output connector, wherein the first input connector and the first output connector have the same specifications, and the second input connector and the second output connector have the same specifications.

5. The power supply device as claimed in claim 4, wherein the first input connector and the first output connector are 10-pin connectors and the second input connector and the second output connector are 8-pin connectors configured with 6 pins and 2 pins, and the first input connector and the first output connector are 8-pin connectors configured with 4 pins and 4 pins, and the second input connector and the second output connector are 8-pin connectors configured with 6 pins and 2 pins.

6. A power supply method for a power supply device, the power supply device comprising a power source and a battery, the power source being used to provide a first power, the battery being used to provide a second power, the power source supplying power to a load through a power supply path, the power supply method comprising: Detect the power consumption of the load; Detect the battery's charge level; Based on the power consumption of the load and the battery charge, a first power is output to the load and the battery to power the load and charge the battery, or a second power is output to the load along with the first power through the power supply path to power the load; when the power consumption of the load is lower than a preset power consumption and the battery charge is lower than a preset charge, the first power is output to the load and the battery; when the power consumption of the load exceeds the preset power consumption, the second power is output to the load along with the first power through the power supply path; and when the power consumption of the load exceeds the preset power consumption and the battery charge is lower than the preset charge, the connection between the battery and the power supply path is disconnected.

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