Samsung patents voltage converter that adjusts power signals to prevent timing clashes
This filing describes a circuit that converts one input voltage into two separate output voltages for different parts of a device. It includes a mechanism that detects when the two power signals are about to switch at the exact same time. If a clash is detected, the circuit weakens the driving signal to manage the transition more smoothly.
In the filing’s own words
A multi-output voltage converter includes a first converting circuit, a second converting circuit, a strength adjusting signal generator, a first driving circuit and a second driving circuit. The first converting circuit includes a first power transistor and generates a first output voltage by converting an input voltage based on a first driving signal. The second converting circuit includes a second power transistor, and generates a second output voltage by converting the input voltage based on a second driving signal. The strength adjusting signal generator generates a strength adjusting signal based on transition timings of first and second internal driving signals. Each of the first driving circuit and the second driving circuit reduces a driving strength of the first driving signal and the second driving signal based on the strength adjusting signal when the first transition timing is synchronized with the second transition timing.
What exactly they claim (claim 1)
1. A multi-output voltage converter comprising: a first converting circuit configured to generate a first output voltage by converting an input voltage, the first converting circuit including a first power transistor configured to pull-up a first switching node based on a first driving signal; a second converting circuit configured to generate a second output voltage by converting the input voltage, the second converting circuit including a second power transistor configured to pull-up a second switching node based on a second driving signal; a strength adjusting signal generator configured to generate a strength adjusting signal based on a first transition timing of a first internal driving signal and a second transition timing of a second internal driving signal; a first driving circuit configured to generate the first driving signal which dynamically adjusts a driving strength of the first power transistor based on the strength adjusting signal and the first internal driving signal; and a second driving circuit configured to generate the second driving signal which dynamically adjusts a driving strength of the second power transistor based on the strength adjusting signal and the second internal driving signal, wherein the strength adjusting signal indicates that the second transition timing of the second internal driving signal is simultaneous with the first transition timing of the first internal driving signal.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- MULTI-OUTPUT VOLTAGE CONVERTER
- Publication number
- US20260291381A1
- Application number
- 19330278
- Filed
- Sep 16, 2025
- Published
- Sep 24, 2026
- Inventors
- 6
- Claims
- 20
Classified under
H02M 1/44 Electricity & electronicsH02M 1/009 Electricity & electronicsH02M 1/088 Electricity & electronicsH02M 3/157 Electricity & electronicsH02M 3/158 Electricity & electronicsH02M 1/0025 Electricity & electronicsMore 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.