Switch circuit and electronic device
OwnerZhen-Ji Xu, Yong-Song Shiinventors
Life of this patent
Estimating the term…
Abstract
An electronic device includes a power supply, a load, and a switch circuit controlling the power supply. The switch circuit includes a control unit and a key switch capable of establishing an electrical connection between the power supply and the control unit in response to an operation by a user. When the key switch establishes the electrical connection, the control unit receives a supply voltage from the power supply and is charged-up by the supply voltage to generate a first control signal, the first control signal enables the power supply to power the load.
Claims20
A switch circuit controlling a power supply, the switch circuit comprising:
- a control unit;
- and
- a key switch capable of establishing an electrical connection between the power supply and the control unit in response to an operation by a user;
- wherein when the key switch establishes the electrical connection, the control unit receives a supply voltage from the power supply and is charged-up by the supply voltage to generate a first control signal, the first control signal enables the power supply to power a load.
An electronic device, comprising:
- a power supply;
- a load;
- and
- a switch circuit controlling the power supply, the switch circuit comprising:
- a control unit;
- and
- a key switch capable of establishing an electrical connection between the power supply and the control unit in response to an operation by a user;
- wherein when the key switch establishes the electrical connection, the control unit receives a supply voltage from the power supply and is charged-up by the supply voltage to generate a first control signal, the first control signal enables the power supply to power the load.
An electronic device, comprising:
- a power supply;
- a load;
- and
- a switch circuit controlling the power supply, the switch circuit comprising:
- a control unit;
- and
- a key switch capable of establishing an electrical connection between the power supply and the control unit in response to an operation by a user;
- wherein the power supply provides a supply voltage to the key switch and stops powering the load when the electronic device is powered off;
- when the key switch establishes the electrical connection, the control unit receives a supply voltage from the power supply and is charged-up by the supply voltage to generate a first control signal, the first control signal enables the power supply to power the load.
Dependencies are inferred from the claim text.