# US 2018/0323629 A1 · Power management system and method for operating the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0323629 A1 - Document ID: US20180323629A1 - Status: Published application - Kind: A1 - Application number: 15/585,076 - Filed: 2017-05-02 - Published: 2018-11-08 - Earliest claimed: 2017-05-02 - Assignees: Advanced Semiconductor Engineering, Inc. - Applicants: Advanced Semiconductor Engineering, Inc. - Inventors: Tau-Jing YANG; Kuo-Feng HUANG; Chih Lung HUNG - Web page: https://patentgrep.com/patent/US20180323629A1 ## CPC - H02J 50/10: using inductive coupling - H02J 7/04: Regulation of charging current or voltage - H02J 7/971: {the charge cycle being controlled or terminated in response to non-electric parameters} - H02J 7/977: {of the battery} - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - H02J 7/47: Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source - H02J 7/61: against overcharge - H02J 2207/10: Control circuit supply, e.g. means for supplying power to the control circuit - H02J 2207/40: adapted for charging from various sources, e.g. AC, DC or multivoltage - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract The present disclosure relates to a power management system. The power management system comprises a first power supply device, a second power supply device, a power supply control device, a data processing device and a load. The power supply control device is connected to the first power supply device. The data processing device is connected to the first power supply device, the second power supply device and the power supply control device. The load is connected to the first power supply device and the second power supply device. The power supply control device is configured to, when activated, provide a first signal to the data processing device. The data processing device is configured to select the first power supply device or the second power supply device to provide power to the load according to the first signal. ## Claims ### Claim 1 A power management system, comprising: a first power supply device; a second power supply device; a power supply control device connected to the first power supply device; a data processing device connected to the first power supply device, the second power supply device and the power supply control device; and a load connected to the first power supply device and the second power supply device, wherein the power supply control device is configured to, when activated, provide a first signal to the data processing device; and wherein the data processing device is configured to select the first power supply device or the second power supply device to provide power to the load according to the first signal. ### Claim 2 (depends on 1) The power management system of claim 1, wherein the first power supply device is selected to provide power to the load if the first signal indicates that the first power supply device is activated or both of the first power supply device and the second power supply device are activated. ### Claim 3 (depends on 1) The power management system of claim 1, wherein the second power supply device is selected to provide power to the load if the first signal indicates that the second power supply device is activated and that the first power supply device is not activated. ### Claim 4 (depends on 1) The power management system of claim 1, wherein the first power supply device is a wired charger and the second power supply device is a wireless charger. ### Claim 5 (depends on 1) The power management system of claim 1, wherein the load comprises a thermal sensitive sensor configured to detect a temperature of the load and send a second signal to the data processing device based on the detected temperature. ### Claim 6 (depends on 5) The power management system of claim 5, wherein the data processing device is configured to enable or disable the first power supply device to provide power to the load according to the second signal. ### Claim 7 (depends on 6) The power management system of claim 6, wherein the first power supply device comprises a first power supply circuit to receive the second signal; the first power supply circuit is configured to be short-circuited to disable the first power supply device in response to that the detected temperature is higher than a threshold value; and the first power supply circuit is configured to be open-circuited to enable the first power supply device if the detected temperature is lower than or equal to the threshold value. ### Claim 8 (depends on 7) The power management system of claim 7, wherein the first power supply circuit comprises a transistor and a resistor; a drain of the transistor is connected with one terminal of the resistor; a source of the transistor is connected with another terminal of the resistor; and a gate of the transistor is connected with the data processing device. ### Claim 9 (depends on 5) The power management system of claim 5, wherein the data processing device is configured to enable or disable the second power supply device to provide power to the load according to the second signal. ### Claim 10 (depends on 9) The power management system of claim 9, wherein the second power supply device comprises a second power supply circuit to receive the second signal; the second power supply circuit is configured to be short-circuited to disable the second power supply device in response to that the detected temperature is higher than a threshold value; and the second power supply circuit is configured to be open-circuited to enable the second power supply device if the detected temperature is lower than or equal to the threshold value. ### Claim 11 (depends on 10) The power management system of claim 10, wherein the second power supply circuit comprises a transistor and a resistor; a drain of the transistor is connected with one terminal of the resistor; a source of the transistor is connected with another terminal of the resistor; and a gate of the transistor is connected with the data processing device. ### Claim 12 (depends on 5) The power management system of claim 5, further comprising a resistor, wherein a resistance level of the thermal sensitive sensor varies depending on the temperature of the load; and the thermal sensitive sensor is connected with the resistor in series; the second signal represents a voltage across the thermal sensitive sensor. ### Claim 13 (depends on 12) The power management system of claim 12, wherein the data processing device comprises an analog-to-digital converter (ADC) configured to receive the voltage across the thermal sensitive sensor and to convert the received voltage into a digital signal to control the first power supply device or the second power supply device. ### Claim 14 (depends on 5) The power management system of claim 5, wherein the data processing device is configured to disable the first power supply device to provide power to the load in response to that the temperature of the load is higher than a first predetermined value or lower than a second predetermined value. ### Claim 15 (depends on 5) The power management system of claim 5, wherein the data processing device is configured to disable the second power supply device to provide power to the load in response to that the temperature of the load is higher than a first predetermined value or lower than a second predetermined value. ### Claim 16 (depends on 1) The power management system of claim 1, wherein the data processing device is a microcontroller unit (MCU). ### Claim 17 (depends on 1) The power management system of claim 1, wherein the load is a battery. ### Claim 18 (depends on 17) The power management system of claim 17, wherein the battery comprises a power level detector configured to detect a remaining power level of the battery and send a third signal to the MCU based on the remaining power level of the battery; if the remaining power level of the battery is greater than a predetermined value, the MCU is configured to enable the battery to provide power to an electronic device; and if the remaining power of the battery is less than or equal to the predetermined value, the MCU is configured to disable the battery to provide power to the electronic device. ### Claim 19 A power management system, comprising: a battery comprising a thermal sensitive sensor configured to provide a first signal based on a temperature change of the battery; multiple power supply devices each connected to the battery; a power supply control device connected with the multiple power supply devices to provide a selection signal; a microcontroller unit (MCU) connected with the battery and the power supply control device, the MCU configured to receive the first signal and the selection signal and to generate a control signal based on the received first signal and the selection signal; and multiple transistors each connecting one of the power supply devices to the MCU and configured to enable or disable the corresponding power supply device to provide power to the battery according to the control signal. ### Claim 20 (depends on 19) The power management system of claim 19, further comprising a first resistor, wherein the thermal sensitive sensor is connected to the first resistor in series and the first signal is a voltage across the thermal sensitive sensor. ### Claim 21 (depends on 19) The power management system of claim 19, wherein each of the power supply devices comprises a second resistor; each of the transistors is connected to a third resistor in parallel; each of the transistors and the third resistor are connected to the second resistor; and each of the power supply devices is enabled or disabled based on a voltage across a corresponding transistor and the third resistor connected to the corresponding transistor. ### Claim 22 (depends on 21) The power management system of claim 21, wherein a gate of each of the transistors is connected with the MCU to receive the control signal; and wherein if the control signal is higher than a threshold value, the power supply device connected to the corresponding transistor is disabled; and if the control signal connected to the corresponding transistor is lower than or equal to the threshold value, the power supply device is enabled.