Apparatus and system for providing transient suppression power regulation
First Claim
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1. A microelectronic power regulator for regulating power to a microprocessor, comprising:
- a first power regulator; and
a sense circuit configured to sense a rate of change of power distributed to the microprocessor, wherein the sense circuit is configured to send a signal to the first power regulator, the signal indicative of the rate of change of power distributed to the microprocessor.
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Abstract
A device for providing power to suppress transient load demands and a system including the device are disclosed. The device includes a sense circuit to detect when a transient event occurs and one or more transistors configured to supply or sink current to the load. The system may include a second power regulator configured to respond to fast transient power demands. In this case, a first power regulator supplies power to the load and responds to slow transient events, while the second regulator responds only to fast transient events.
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Citations
54 Claims
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1. A microelectronic power regulator for regulating power to a microprocessor, comprising:
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a first power regulator; and
a sense circuit configured to sense a rate of change of power distributed to the microprocessor, wherein the sense circuit is configured to send a signal to the first power regulator, the signal indicative of the rate of change of power distributed to the microprocessor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A microelectronic power regulator system comprising:
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a power source;
a first power regulator coupled to the power source and a load;
a second power regulator coupled to the load; and
a sense circuit coupled to the second power regulator, the sense circuit configured to detect a rate of change of power and send a signal to the second power regulator in response to the rate of change of power. - View Dependent Claims (9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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13. A power regulator for responding to transient power demands, comprising:
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a negative transient response portion configured to response to fast transient negative current events, the negative response portion comprising a sense circuit and a current source; and
a positive transient response portion configured to response to fast transient positive current events, the positive response portion comprising a sense circuit and a current sink.
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33. A power regulation system for supplying power to a microelectronic device and ted for suppressing transient power demands, the system comprising:
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a first voltage regulator configured to supply power to a load and to respond to slow transient power demands, the first voltage regulator including a first voltage output, a second voltage output, and a ground output; and
a second voltage regulator coupled to the second voltage output of the first voltage regulator, the second voltage regulator configured to respond to fast transient power demands, the second voltage regulator comprising a sense amplifier, a current source, and a current sink. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51)
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46. A microelectronic power regulator system comprising:
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a power source;
a primary power regulator coupled to the power source;
a secondary power regulator coupled to the power source, the secondary regulator configured to respond to power demands at a higher frequency than the primary power regulator; and
a sense circuit coupled to the secondary power regulator, the sense circuit configured to detect a rate of change of power and send a signal to the secondary power regulator in response to the rate of change of power.
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52. A power regulator configured to respond to transient load events, the regulator comprising:
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an amplifier including a transconductance stage and an output stage;
a compensation capacitor coupled to the output of the transconductance stage of the amplifier and further coupled to ground;
a sense circuit including a threshold voltage reference and a comparator coupled to the threshold voltage reference, the sense circuit coupled to the input of the transconductance stage of the amplifier and further coupled to a reference voltage source; and
a boost circuit coupled to the sense circuit, the boost circuit including a first switch coupled to a boost capacitor and further coupled to a voltage source, and a second switch coupled to the boost capacitor and the input of the output stage of the amplifier. - View Dependent Claims (53, 54)
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Specification