Power Supply, Associated Management Unit and Method
AssigneeMonolithic Power Systems, Inc.
InventorsPengjie Lai, Jian Jiang
Life of this patent
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Abstract
The present invention discloses a power supply. The power supply may comprise an input power terminal, a capacitor module, a first converter module and a second converter module. The first converter module may have a first terminal and a second terminal, wherein the first terminal is coupled to the input power terminal and the second terminal is coupled to the capacitor module. The second converter module may comprise an input and an output, wherein the input of the second converter module is coupled to the input power terminal, and the output of the second converter module is configured to supply a load.
Claims20
A power supply, comprising:
- an input power terminal;
- a capacitor module;
- a first converter module having a first terminal and a second terminal, wherein the first terminal is coupled to the input power terminal and wherein the second terminal is coupled to the capacitor module;
- and
- a second converter module comprising an input and an output, wherein the input of the second converter module is coupled to the input power terminal, and wherein the output of the second converter module is configured to supply a load.
A power management unit, comprising:
- an input power terminal selectively coupled to a power source;
- a capacitor terminal coupled to a capacitor module;
- a bi-directional converter coupled between the input power terminal and the capacitor terminal;
- and
- a second converter module coupled to the input power terminal, the second converter module having a plurality of outputs, wherein the plurality of outputs are configured to supply a plurality of loads.
A method of supplying a load, comprising:
- coupling a first converter module between an input power terminal and a capacitor module;
- and
- coupling a second converter module to the input power terminal, and the second converter module supplying a load;
- wherein
- when the input power terminal is coupled to a power source, supplying the load by the power source via the second converter module, and converting an input voltage of the power source into a first voltage by the first converter module for charging the capacitor module;
- and
- when the power source is removed, discharging the capacitor module and converting a capacitor voltage into a second voltage by the first converter module, and supplying the load by the second voltage via the second converter module.
Dependencies are inferred from the claim text.