Digital pulse-frequency modulation controller for switch-mode power supplies with frequency targeting and ultrasonic modes
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United States of America Patent
Stats
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Sep 3, 2013
Grant Date -
Sep 6, 2012
app pub date -
Mar 2, 2011
filing date -
Mar 2, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A digital pulse controller uses digital logic to send pulses to a high side and low side switches of a switch-mode power supply converter. The digital logic uses a pulse frequency mode which includes a frequency targeting mode and an ultrasonic mode. The frequency targeting mode dynamically adjusts the size of the pulses in order to achieve a switching frequency within a desired band. The ultrasonic mode is switched into when the frequency of the pulses are at or below a threshold and the time of the pulses reaches a minimum threshold.
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International Classification(s)
- 2011 Application Filing Year
- G05F Class
- 1434 Applications Filed
- 909 Patents Issued To-Date
- 63.39 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 8 Citation Count
- G05F Class
- 4.29 % this patent is cited more than
- 12 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 3, 2025 |
