Samsung patents voltage regulator that copies power noise to stabilize output
Samsung has been granted a patent for a voltage regulator that uses a specific circuit to copy power noise from a reference signal. This copied noise is then used to help a transistor generate a stable output voltage for electronic components. The design includes a buffer unit with transistors and a filter to manage how the voltage is produced.
In the filing’s own words
A voltage regulator configured to generate an output voltage includes a comparison unit configured to generate a second voltage based on a reference voltage and a first voltage generated by a feedback of the output voltage, a power noise replica buffer unit configured to generate a third voltage including a power noise copied based on the second voltage, and a pass transistor configured to generate the output voltage in response to the third voltage.
What exactly they claim (claim 1)
1. A voltage regulator configured to generate an output voltage, comprising: a comparison unit configured to generate a second voltage, based on a reference voltage and a first voltage generated by a feedback of the output voltage; a power noise replica buffer unit configured to generate a third voltage including a power noise copied based on the second voltage; and a pass transistor configured to generate the output voltage in response to the third voltage, wherein the power noise replica buffer unit includes: a 0-th transistor connected between a ground node and a 0-th node, and configured to operate in response to the second voltage; a first transistor connected between the 0-th node and a power node and including a gate node connected to a second node; a high-pass filter connected between the second node and a third node; a second transistor connected between the power node and a first node connected to the third node and including a gate node connected to the third node; and a current source connected between the first node and the ground node, wherein the power noise replica buffer unit provides the third voltage through the 0-th node.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- Voltage regulator, electronic system including the same, and operation method thereof
- Patent number
- US12769347B2
- Application number
- 18733152
- Filed
- Jun 4, 2024
- Granted
- Oct 20, 2026
- Inventors
- 2
- Claims
- 20
Classified under
G05F 1/575 Physics & computingG05F 1/56 Physics & computingMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.