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US 9,542,124 B2Granted
Electronic device and method for operating the same
AssigneeSK hynix Inc.
InventorsByoung-Chan Oh, Yoon-Jae Shin
Life of this patent
Estimating the term…
Abstract
Provided is an electronic device including a power supply circuit. The power supply circuit includes: a voltage driving unit configured to pull-up drive an output node and generate an output voltage; and a driving control unit configured to receive the output voltage, disable the voltage driving unit from the time at which a divided voltage obtained by dividing the output voltage at a set ratio becomes higher than a first level, and enable the voltage driving unit from the time at which the divided voltage becomes lower than a second level, which is higher than the first level.
Claims25
An electronic device comprising a power supply circuit which comprises:
- a voltage driving unit configured to pull-up drive an output node and generate an output voltage;
- and
- a driving control unit configured to receive a delayed output voltage, disable the voltage driving unit from the time at which a divided voltage obtained by dividing the delayed output voltage at a set ratio becomes higher than a first level, and enable the voltage driving unit from the time at which the divided voltage becomes lower than a second level which is higher than the first level,
- wherein the delayed output voltage is generated by delaying the output voltage, and
- wherein the electronic device further comprises a semiconductor memory unit which comprises:
- a cell array comprising a plurality of storage cells configured to store data;
- and
- a control circuit configured to write data to the plurality of storage cells or read data from the plurality of memory cells, and
- the power supply circuit supplies power used in one or more of the cell array and the control circuit.
6 more elements
An electronic device comprising a power supply circuit which comprises:
- a voltage driving unit configured to pull-up drive an output node and generate an output voltage;
- and
- a driving control unit coupled to receive a delayed output voltage and coupled to the voltage driving unit to (1) disable the voltage driving unit from the time at which a divided voltage obtained by dividing the delayed output voltage at a set ratio becomes higher than a first level, and (2) enable the voltage driving unit from the time at which the divided voltage becomes lower than a second level which is higher than the first level, and
- wherein the electronic device further comprises a semiconductor memory unit,
- wherein the semiconductor memory unit comprises:
- a cell array comprising a plurality of storage cells configured to store data;
- and
- a control circuit configured to write data to the plurality of storage cells or read data from the plurality of memory cells, and
- the power supply circuit supplies power used in one or more of the cell array and the control circuit.
6 more elements
An electronic device comprising a power supply circuit which comprises:
- a voltage driving unit configured to pull-up drive an output node;
- a voltage transmission line configured to transmit an output voltage generated at the output node to an input node;
- and
- a driving control unit configured to initially activate the voltage driving unit, and disable the voltage driving unit when a divided voltage obtained by dividing the voltage of the input node at a set ratio becomes higher than a first level, and enable the voltage driving unit when the divided voltage becomes lower than a second level which is higher than the first level,
- wherein the voltage transmission line delays the output voltage of the output node in transmitting the output voltage from the output node to the input node, and
- wherein the electronic device further comprises a semiconductor memory unit which comprises:
- a cell array comprising a plurality of storage cells configured to store data;
- and
- a control circuit configured to write data to the plurality of storage cells or read data from the plurality of memory cells, and
- the power supply circuit supplies power used in one or more of the cell array and the control circuit.
7 more elements
An electronic device comprising a power supply circuit which comprises:
- a voltage driving unit generating an output voltage by driving an output node if activated and floating an output node if deactivated, wherein the output voltage is fed back to an input node of a power supply circuit to provide an input voltage;
- and
- a driving control unit receiving the input voltage and activating or deactivating an enable signal to activate or deactivate the voltage driving unit in consideration of a delay in feeding back the output voltage from the output node to the input node, and
- wherein the electronic device further comprises a semiconductor memory unit which comprises:
- a cell array comprising a plurality of storage cells configured to store data;
- and
- a control circuit configured to write data to the plurality of storage cells or read data from the plurality of memory cells, and
- the power supply circuit supplies power used in one or more of the cell array and the control circuit.
5 more elements
Dependencies are inferred from the claim text.