Power management module and power supply apparatus
View Patent ↗A power management module electrically coupled between an AC/DC switching power supply and an electronic apparatus comprises a memory device, voltage and current detecting units, a writing unit, and an alarm signal generation unit. The memory device generates an output data to the electronic apparatus. The voltage and current detecting units detect voltages and currents of the output terminals of the switching power supply, respectively. The writing unit writes a new input data and the voltage and current data to the memory. The alarm signal generation unit generates an alarm signal to the electronic apparatus according to the data stored in the memory device and according to the operation condition of the switching power supply.
1. A power management module, which is electrically connected between an alternating current (AC)/direct current (DC) switching power supply and an electronic device, the power management module comprising:
a memory device for generating an output data to the electronic device;
a voltage detecting unit for detecting a voltage value of at least one output terminal of the AC/DC switching power supply and generating at least one voltage signal;
a current detecting unit for detecting a current value of the at least one output terminal of the AC/DC switching power supply and generating at least one current signal;
a writing unit for receiving an input data, the voltage signal from the voltage detecting unit, and the current signal from the current detecting unit, and for writing the input data, the voltage signal, and the current signal to the memory device; and
an alarm signal generation unit for providing an alarm signal to the electronic device according to the data in the memory device written by the writing unit and according to the operation condition of the AC/DC switching power supply,
wherein the input data comprises a preset temperature threshold value, and the alarm signal generation unit comprises:
a reading unit for reading the preset temperature threshold value from the memory device and sending the preset temperature threshold value to a comparison unit; and
the comparison unit for receiving the preset temperature threshold value and a temperature signal from the AC/DC switching power supply, and for comparing these two signals to generate the alarm signal,
wherein the memory device sends the output data to the electronic device via an external port on the electronic device, wherein the electronic device uses the output data to adjust a charge current of a rechargeable battery within the electronic device, and wherein the power management module is a separate physical machine than the electronic device.
2. The power management module of claim 1 , wherein the input data is associated manufactured data of the AC/DC switching power supply.
3. The power management module of claim 1 , wherein the input data is associated rated data of the AC/DC switching power supply.
4. The power management module of claim 1 , wherein the input data comprises a preset input voltage threshold value, and the alarm signal generation unit comprises:
a reading unit for reading a preset input voltage threshold value from the memory device and sending the preset input voltage threshold value to a comparison unit; and
the comparison unit for receiving the preset input voltage threshold value and a voltage signal indicating the peak voltage value of an AC power supplied to the AC/DC switching power supply, and for comparing these two values to generate the alarm signal.
5. The power management module of claim 1 , wherein the input data comprises a preset output power threshold value, and the alarm signal generation unit comprises:
a reading unit for reading the preset output power threshold value from the memory device, the at least one voltage signal from the voltage detecting unit, and the at least one current signal from the current detecting unit, and for sending the reading data to an operating unit and a comparison unit;
the operating unit for calculating a current total output power value according to the at least one voltage signal and the at least one current signal; and
the comparison unit for receiving the preset output power threshold value and the current total output power value, and comparing these two values to generate the alarm signal.
6. The power management module of claim 1 , wherein the input data comprises a rated current value of the at least one output terminal of the AC/DC switching power supply, and the power management module further comprises a battery management unit, the battery management unit comprising:
a reading unit for reading the rated current value from the memory device and the at least one current signal from the current detecting unit, and for outputting the reading data to a control unit; and
the control unit for controlling a charge current of a rechargeable battery in the electronic device according to the rated current value and the at least one current signal.
7. The power management module of claim 1 , further comprising a battery management unit, wherein if the electronic device operates in a standby mode, the battery management unit provides the rated current value of the at least one output terminal of the switching power supply to an rechargeable battery in the electronic device.
8. The power management module of claim 1 , wherein the port is a serial connecting port.
9. The power management module of claim 1 , wherein the memory device sends the output data to the electronic device over a cable plugged into said external port on the electronic device.
10. A power supply apparatus for providing power to an electronic device, the power supply apparatus comprising:
an alternating current (AC)/direct current (DC) switching power supply; and
a power management module electrically connected to the AC/DC switching power supply, the power management module comprising:
a memory device for generating an output data to the electronic device;
a voltage detecting unit for detecting a voltage value of at least one output terminal of the switching power supply and generating at least one voltage signal;
a current detecting unit for detecting a current value of the at least one output terminal of the switching power supply and generating at least one current signal;
a writing unit for receiving an input data, the voltage signal from the voltage detecting unit, and the current signal from the current detecting unit, and for writing the input data, the voltage signal, and the current signal to the memory device; and
an alarm signal generation unit for providing an alarm signal to the electronic device according to the data in the memory device written by the writing unit and according to the operation condition of the AC/DC switching power supply,
wherein the input data comprises a preset temperature threshold value, and the alarm signal generation unit comprises:
a reading unit for reading the preset temperature threshold value from the memory device and for sending the preset temperature threshold value to a comparison unit; and
the comparison unit for receiving the preset temperature threshold value and a temperature signal from the AC/DC switching power supply, and for comparing these two signals to generate the alarm signal,
wherein the memory device sends the output data to the electronic device via an external port on the electronic device, wherein the electronic device uses the output data to adjust a charge current of a rechargeable battery within the electronic device, and wherein the power management module is a separate physical machine than the electronic device.
11. The power supply apparatus of claim 10 , wherein the input data is associated manufactured data of the AC/DC switching power supply.
12. The power supply apparatus of claim 10 , wherein the input data is associated rated data of the AC/DC switching power supply.
13. The power supply apparatus of claim 10 , wherein the input data comprises a preset input voltage threshold value, and the alarm signal generation unit comprises:
a reading unit for reading the preset input voltage threshold value from the memory device and sending the preset input voltage threshold value to a comparison unit; and
the comparison unit for receiving the preset input voltage threshold value and a voltage signal indicating the peak voltage value of an AC power supplied to the AC/DC switching power supply, and for comparing these two signals to generate the alarm signal.
14. The power supply apparatus of claim 10 , wherein the input data comprises a preset output power threshold value, and the alarm signal generation unit comprises:
a reading unit for reading the preset output power threshold value from the memory device, the at least one voltage signal from the voltage detecting unit, and the at least one current signal from the current detecting unit, and for sending the reading data to an operating unit and a comparison unit;
the operating unit for calculating a current total output power value according to the at least one voltage signal and the at least one current signal; and
the comparison unit for receiving the preset output power threshold value and the current total output power value, and comparing these two signals to generate the alarm signal.
15. The power supply apparatus of claim 10 , wherein the input data comprises a rated current value of the at least one output terminal of the AC/DC switching power supply, and the power management module further comprises a battery management unit, the battery management unit comprising:
a reading unit for reading the rated current value from the memory device and the at least one current signal from the current detecting unit, and outputting the reading data to a control unit; and
the control unit for controlling a charge current of a rechargeable battery in the electronic device according to the rated current value and the at least one current signal.
16. The power supply apparatus of claim 10 , further comprising a battery management unit, wherein if the electronic device operates in a standby mode, the battery management unit provides the rated current value of the at least one output terminal of the switching power supply to a rechargeable battery in the electronic device.
17. The power supply apparatus of claim 10 , wherein the port is a serial connecting port.
18. The power supply apparatus of claim 10 , wherein the memory device sends the output data to the electronic device over a cable plugged into said external port on the electronic device.