Controller for, and method of controlling, a switched mode power converter
AssigneeNXP B.V.
InventorGian HOOGZAAD
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Abstract
A method is disclosed for controlling a DC-DC switched-mode power converter comprising a switch, the method comprising, whilst controlling the switch by a main control loop: detecting a step in a load on the switched-mode power converter; generating a signal in response to the detector detecting a step in the load, and switching the switch in response to the signal. Advantageously, the method may avoid a delay (such as waiting for a subsequent oscillator pulse) which might otherwise occur before switching the switch, to react to the transient. The faster response may result in a reduction of the transient current from the converter, which may facilitate the use of smaller and cheaper components. A controller configured to operate such a method is also disclosed
Claims15
A method for controlling a DC-DC switched-mode power converter comprising a switch, the method comprising,
- whilst controlling the switch by a main control loop:
- detecting a step in a load on the switched-mode power converter;
- generating a signal in response to the detector detecting a step in the load, and
- switching the switch in response to the signal.
A controller for a switch-mode power converter having a switch, the controller comprising
- a main control loop for controlling the switch,
- a detector for detecting a step in a load on the switched-mode power converter, and
- a signal generator for generating a signal in response to the detector detecting a step in the load,
- wherein the controller is configured to switch the switch in response the signal.
Dependencies are inferred from the claim text.