Zeno phenomenon avoidance in power controller handoff
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United States of America Patent
Stats
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Jun 12, 2018
Issued Date -
N/A
app pub date -
Mar 22, 2017
filing date -
Mar 22, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A control circuit eliminates the Zeno phenomenon in a power supply controller while transferring control from a primary side controller to a secondary side controller. The primary side controller generates a feedback voltage (e.g., threshold voltage) that is input to a comparator. An output node voltage of the control circuit is fed back to the linear amplifier to be compared with the threshold voltage. While the output node voltage is less than the threshold voltage, a charge pump is coupled to the output node of the control circuit. After the output node voltage has toggled around the threshold voltage a number of times, the comparator output node is coupled to the output node of the control circuit and the charge pump is decoupled from the output node. When the output node voltage has discharged to be equal to the threshold voltage, control is handed off from the primary side controller to the secondary side controller.
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International Classification(s)
- 2017 Application Filing Year
- H03K Class
- 2832 Applications Filed
- 2220 Patents Issued To-Date
- 78.39 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- H03K Class
- 21.67 % this patent is cited more than
- 7 Age
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