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US 10,541,605 B2Granted
Charge pump system including output efficiency control
AssigneeIntel Corporation
InventorMarcin Daniel
Life of this patent
Estimating the term…
Abstract
Some embodiments include apparatuses having a charge pump to generate an output voltage based on a first supply voltage, a second supply voltage, and timing of a clock signal; an output regulator to generate a regulated voltage at a node based on the output voltage; and a monitor circuit to monitor an output current at the node and provide feedback information based on the output current in order to adjust a value of the second supply voltage.
Claims19
An apparatus comprising:
- a first node to receive a first supply voltage;
- a second node receive a second supply voltage;
- a third node to receive a clock signal;
- a charge pump coupled the first, second, and third nodes to generate an output voltage at an output node based on the first supply voltage, the second supply voltage, and timing of the clock signal;
- an output regulator to generate a voltage at a node based on the output voltage;
- and
- a monitor circuit to monitor an output current at the node and provide feedback information based on the output current to adjust a value of the second supply voltage, the monitor circuit including a first transistor and a second transistor coupled between the output node and the node.
4 more elements
An apparatus comprising:
- a charge pump to generate an output voltage at an output node based on a first voltage, the charge pump including a switching circuit to control generation of the output voltage based on timing of a clock signal, the switching circuit including a node to receive a second voltage:
- an output regulator to generate a regulated output voltage based on the output voltage and provide the regulated output voltage at a regulator output node;
- a current sensor to generate a reference current based on an output current at the regulator output node;
- a converter to convert the reference current into a reference voltage;
- and
- a controller to control the second voltage based on the reference voltage, wherein the current sensor includes a first transistor and a second transistor coupled between the output node of the charge pump and the regulator output node.
3 more elements
An apparatus comprising:
- a charge pump to generate an output voltage at an output node based on a first voltage, the charge pump including a switching circuit to control generation of the output voltage based on timing of a clock signal, the switching circuit including a node to receive a second voltage;
- an output regulator to generate a regulated output voltage based on the output voltage and provide the regulated output voltage at a regulator output node;
- a current sensor to generate a reference current based on an output current at the regulator output node;
- a converter to convert the reference current into a reference voltage;
- and
- a controller to control the second voltage based on the reference voltage, wherein the converter includes a transistor, a resistor, and a diode coupled between the output node of the charge pump and ground.
3 more elements
An apparatus comprising:
- a charge pump to generate an output voltage at an output node based on a first voltage, the charge pump including a switching circuit to control generation of the output voltage based on timing of a clock signal, the switching circuit including a node to receive a second voltage;
- an output regulator to generate a regulated output voltage based on the output voltage and provide the regulated output voltage at a regulator output node;
- a current sensor to generate a reference current based on an output current at the regulator output node;
- a converter to convert the reference current into a reference voltage;
- and
- a controller to control the second voltage based on the reference voltage, wherein the controller includes a voltage follower circuit to adjust a value of the second voltage based on a value of the reference voltage.
3 more elements
An electronic system comprising:
- an antenna circuit path;
- and
- a voltage generator coupled to the antenna circuit path, the voltage generator including:
- a first node to receive a first supply voltage;
- a second node receive a second supply voltage;
- a third node to receive a clock signal;
- a charge pump coupled to the first, second, and third nodes to generate an output voltage at an output node based on the first supply voltage, the second supply, and timing of the clock signal;
- an output regulator to generate a voltage at a node based on the output voltage;
- and
- a monitor circuit to monitor an output current at the node and provide feedback information based on the output current to adjust a value of the second supply voltage, the monitor circuit including a first transistor and a second transistor coupled between the output node and the node.
7 more elements
Dependencies are inferred from the claim text.