Inductor protection during fast transient response in isolated voltage converters
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United States of America Patent
Stats
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Mar 27, 2018
Issued Date -
N/A
app pub date -
Feb 28, 2017
filing date -
Feb 28, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Techniques are provided for controlling power switches that couple an input power source to a transformer within a voltage converter, in order to control the power transfer through the transformer and to a load of the voltage converter. Different techniques are provided for different operational modes. In an initial steady-state interval, the switches are switched using a fixed first switching period and variable duty cycle. Upon detecting a load transient, e.g., a sudden increase in the load power requirements, a ramp-up interval is entered during which the switches are switched using a second switching period and a second duty cycle, in order to increase the output current of the converter at a maximum rate. Upon detecting that a current within the voltage converter has reached a maximum allowed level, a current-limited interval is entered during which the switches are switched using a third switching period and a third duty cycle.
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International Classification(s)
- 2017 Application Filing Year
- H02M Class
- 3298 Applications Filed
- 2665 Patents Issued To-Date
- 80.81 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 14 Citation Count
- H02M Class
- 84.38 % this patent is cited more than
- 7 Age
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