Power supply system for wireless keyboard
AssigneesHong Fu Jin Precision Industry (Wuhan) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
InventorGUANG-FENG OU
Life of this patent
Estimating the term…
Abstract
A power supply system includes a charge module, a control module, and a discharge module. The charge module includes a charge circuit and a cell assembly. The control module includes a wireless unit. The discharge module includes a voltage increasing circuit coupled to the cell assembly and a voltage decreasing circuit coupled to the voltage increasing circuit. The charge module is coupled to a direct current power supply to charges the cell assembly. The cell assembly outputs a discharge voltage. The voltage increasing circuit is configured to increase the discharge voltage to a reference voltage. The voltage decreasing circuit decreases the increased discharge voltage to charge the wireless unit.
Claims19
A power supply system comprising:
- a charge module comprising a charge circuit and a cell assembly;
- a control module comprising a wireless unit;
- and
- a discharge module comprising a voltage increasing circuit, a toggle switch, and a voltage decreasing circuit,
- wherein the charge module is coupled to a direct current power supply and to the cell assembly and is configured to charge the cell assembly;
- the cell assembly is configured to output a discharge voltage;
- the voltage increasing circuit is configured to increase the discharge voltage to a reference voltage;
- the toggle switch is operable in a first mode in which the voltage decreasing circuit and the voltage increasing circuit are switched off by the toggle switch;
- the cell assembly is further configured to charge a peripheral device;
- and
- the toggle switch is further operable to a second mode in which the voltage decreasing circuit and the voltage increasing circuit are switched on by the toggle switch, and the voltage decreasing circuit decreases the increased discharge voltage to charge the wireless unit.
A power supply system comprising:
- a charge module comprising a charge circuit and a cell assembly;
- a control module comprising a wireless unit;
- and
- a discharge module comprising a voltage increasing circuit coupled to the cell assembly and a voltage decreasing circuit coupled to the voltage increasing circuit;
- wherein the charge module is coupled to a direct current power supply and to the cell assembly and is configured to charge the cell assembly;
- the cell assembly is configured to output a discharge voltage;
- the voltage increasing circuit is configured to increase the discharge voltage to a reference voltage;
- and
- the voltage decreasing circuit is configured to decrease the increased discharge voltage to charge the wireless unit.
Dependencies are inferred from the claim text.