Programmable calibration circuit for power supply current sensing and droop loss compensation
DCFirst Claim
1. A circuit comprising:
- a regulator circuit and a calibration control circuit, wherein said calibration control circuit includes a controller, an interface with nonvolatile memory, droop outputs, sense outputs, load voltage input, and temperature input;
whereinsaid nonvolatile memory stores calibration data;
said calibration control circuit interfaces with said regulator circuit via said sense outputs, said droop outputs, and said load voltage input;
said calibration control circuit interfaces with said nonvolatile memory to store calibration data;
said calibration control circuit interfaces with said temperature input to receive temperature data;
said temperature data is used by said calibration control circuit to adjust said sense outputs and said droop outputs; and
said calibration control circuit interfaces with said temperature input and said load voltage input to calibrate said calibration data stored in said nonvolatile memory.
5 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A circuit for regulating power is disclosed. The present invention provides circuits and methods for current sensing variations, static droop settings, mismatched phase outputs, and temperature variations in a multiphase power regulator. The circuits may include a calibration controller that senses and regulates both a current sensing circuit and the droop in a power regulator over a range of temperatures thus equalizing phase outputs. The present invention includes the schematic organization and implementation of the circuit, the circuit'"'"'s calibration, its use, and implementation. This invention advantageously provides circuits and methods to properly power a processor or IC chip according to the unique power specifications of the processor or chip.
-
Citations
36 Claims
-
1. A circuit comprising:
- a regulator circuit and a calibration control circuit, wherein said calibration control circuit includes a controller, an interface with nonvolatile memory, droop outputs, sense outputs, load voltage input, and temperature input;
whereinsaid nonvolatile memory stores calibration data; said calibration control circuit interfaces with said regulator circuit via said sense outputs, said droop outputs, and said load voltage input; said calibration control circuit interfaces with said nonvolatile memory to store calibration data; said calibration control circuit interfaces with said temperature input to receive temperature data; said temperature data is used by said calibration control circuit to adjust said sense outputs and said droop outputs; and said calibration control circuit interfaces with said temperature input and said load voltage input to calibrate said calibration data stored in said nonvolatile memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
- a regulator circuit and a calibration control circuit, wherein said calibration control circuit includes a controller, an interface with nonvolatile memory, droop outputs, sense outputs, load voltage input, and temperature input;
Specification