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US 10,644,595 B2Granted
Power converter controller
AssigneeTexas Instruments Incorporated
InventorsAnmol Sharma, Franz Prexl
Life of this patent
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Abstract
A circuit, comprising a trapezoidal generator that comprises digital logic configured to couple at a first input to a loop controller and at a second input to a buck-boost region detector and a driver coupled to an output of the digital logic and configured to couple to at least one power transistor of a power converter.
Claims20
A power converter controller comprising:
- a loop controller configured to monitor an inductor current of an inductor associated with a power converter and generate a control signal based on the inductor current;
- a detector configured to determine whether the power converter is operating in a buck-boost region;
- and
- a gate driver coupled to the loop controller and the detector, the gate driver configured to control the power converter according to a trapezoidal control pattern based on the control signal when the detector indicates that the power converter is operating in the buck-boost region.
1 more element
A power converter controller comprising:
- a loop controller configured to monitor a feedback signal representative of an output voltage of a power converter and generate a control signal based on the feedback signal;
- a detector configured to determine whether the power converter is operating in a buck-boost region;
- and
- a gate driver coupled to the loop controller and the detector, the gate driver configured to control the power converter according to a trapezoidal control pattern based on the control signal when the detector indicates that the power converter is operating in the buck-boost region.
1 more element
A power converter controller comprising:
- a detector configured to generate a buck-boost signal upon determining a power converter is operating in a buck-boost region;
- and
- a gate driver coupled to the detector, and configured:
- generate a first driver signal for charging an inductor of the power converter during a power transistor on-time (Ton) when the buck-boost signal is not asserted;
- generate a second driver signal for discharging the inductor of the power converter during a power transistor off-time (Toff) when the buck-boost signal is not asserted;
- and
- generate a third driver signal for coupling an input of the power converter to an output of the power converter via the inductor during a common mode time when the buck-boost signal is asserted.
4 more elements
Dependencies are inferred from the claim text.