Current consumption controller
AssigneeInternational Business Machines Corporation
InventorsXin Zhang, Bruce Fleischer, Leland Chang
Life of this patent
Estimating the term…
Abstract
Methods and systems for controlling current consumption by an electrical load of a first circuit board are described. In an example, a device of a first circuit board can measure a current being drawn by the electrical load of the first circuit board from a second circuit board. The device can generate a control signal based on a current difference between the measured current and a target current. The control signal can represent a load control parameter. The device can apply the control signal to the electrical load of the first circuit board to adjust a current consumption by the electrical load.
Claims25
A device comprising:
- a current sensing circuit configured to measure a current being drawn by an electrical load of a first circuit board from a second circuit board;
- a controller being configured to:
- receive a current difference between the measured current and a target current;
- generate a control signal based on the current difference, the control signal representing a load control parameter;
- and
- apply the control signal to the electrical load of the first circuit board, wherein the application of the control signal adjusts a current consumption by the electrical load.
An apparatus comprising:
- an electrical load;
- a voltage regulator connected to the electrical load;
- a power supply pin configured to receive a current from a circuit board external to the apparatus;
- a current sensing circuit connected to the power supply pin and the voltage regulator, the current sensing circuit being configured to measure the current being received by the power supply pin;
- a controller connected to the electrical load and the voltage regulator, the controller being configured to:
- receive a current difference between the measured current and a target current;
- generate a control signal based on the current difference, the control signal representing a load control parameter;
- and
- apply the control signal to the electrical load, wherein the application of the control signal adjusts a current consumption by the electrical load.
A method for controlling current consumption by an electrical load, the method comprising:
- measuring, by a device on a first circuit board, a current being drawn by an electrical load of the first circuit board from a second circuit board;
- generating, by the device, a control signal based on a current difference between the measured current and a target current, the control signal representing a load control parameter;
- and
- applying, by the device, the control signal to the electrical load of the first circuit board, wherein the application of the control signal adjusts a current consumption by the electrical load.
Dependencies are inferred from the claim text.