Circuitry to control a switching regulator
AssigneeAllegro MicroSystems, LLC
InventorsGregory Szczeszynski, Matthew Szaniawski
Life of this patent
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Abstract
In one aspect, a circuit includes a switching regulator configured to provide power to a load, a current regulator circuit coupled to the load and a response circuit configured to provide a control signal to the switching regulator in response to electrical changes of the current regulator circuit. The control signal changes non-linearly with respect to the electrical changes at the current regulator circuit. In another aspect, a circuit includes an adaptive regulation voltage circuit configured to provide a regulation voltage to a first input of an amplifier to maintain operability of a current regulator circuit. The adaptive regulation voltage circuit replicates electrical characteristics of the current regulator circuit.
Claims12
A circuit comprising:
- a switching regulator configured to provide power to a load;
- a current regulator circuit coupled to the load;
- and
- a response circuit configured to provide a control signal to the switching regulator in response to voltage changes at the current regulator circuit,
- wherein the control signal changes non-linearly with respect to the voltage changes at the current regulator circuit.
A circuit comprising:
- a switching regulator configured to provide power to a load;
- a current regulator circuit coupled to the load;
- and
- an adaptive response circuit comprising:
- an amplifier configured to provide a control signal to the switching regulator in response to electrical changes at the current regulator and comprising a first input and a second input coupled to the current regulator circuit;
- and
- an adaptive regulation voltage circuit configured to provide a regulation voltage to the first input of the amplifier to maintain operability of the current regulator circuit,
- wherein the adaptive regulation voltage circuit replicates electrical characteristics of the current regulator circuit.
Dependencies are inferred from the claim text.