POWER SWITCHING REGULATOR FOR SWITCHING FREQUENCY AVOIDANCE
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United States of America Patent
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Issued Date -
Jul 11, 2024
app pub date -
Dec 7, 2023
filing date -
Jan 5, 2023
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Abstract
Implementations are disclosed for controlling a discontinuous mode power switching regulator to avoid specific switching frequencies by the regulator that may cause interference. A controller may be configured to operate in different modes to cause the switching regulator to energize and dump the inductor at different rates based on a frequency of requests to energize the inductor. The controller is to receive a plurality of requests to energize the inductor and generate a control signal based on the plurality of requests (with the control signal causing a first number of switching events at the switching regulator over a defined time period). The controller is to also determine whether a switching frequency of the switching regulator is an undesired switching frequency and switch from the first mode to a second mode (with the control signal generated while in the second mode causing the switching frequency of the switching regulator to change).
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