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US 2015/0102856 A1Published application
Programmable bandgap reference voltage
AssigneeAdvanced Micro Devices, Inc.
InventorsRaymond Louis Barrett, JR., Mark Chirachanchai
Life of this patent
Estimating the term…
Abstract
Embodiments may include a method, system and apparatus for providing a reference voltage supply. A series resistor is provided between a power supply and a bandgap circuit coupled to an amplifier. A shunt transistor circuit is operatively coupled to the series resistor. A programmable output voltage is provided based upon the shunt transistor circuit and a first value of the series resistor.
Claims20
A method, comprising:
- providing a series resistor between a power supply and a bandgap circuit coupled to an amplifier;
- providing a shunt transistor circuit operatively coupled to said series resistor;
- and
- providing programmable output voltage based upon said shunt transistor circuit and a first value of said series resistor.
1 more element
An integrated circuit device, comprising:
- a voltage module, comprising:
- a bandgap circuit;
- an amplifier operatively coupled to said bandgap circuit;
- and
- a series resistor operatively coupled in series with said bandgap circuit and an input power supply node;
- and
- wherein said voltage module is configured to provide a self-starting programmable output voltage based upon said shunt transistor circuit and a first value of said series resistor.
4 more elements
A system, comprising:
- a power supply unit to provide an input voltage supply;
- a processor comprising a reference voltage module, comprising:
- a bandgap circuit;
- an amplifier operatively coupled to said bandgap circuit, said amplifier is configured to perform an error correction amplification;
- and
- a series resistor operatively coupled in series with said bandgap circuit and a node of said power supply unit;
- wherein said voltage module is configured to provide a programmable output voltage based upon said bandgap circuit, said amplifier, said shunt transistor circuit, and a first value of said series resistor;
- and
- at least one integrated circuit component capable of receiving said programmable output voltage to perform an operation.
6 more elements
Dependencies are inferred from the claim text.