Control circuit for DC converter

Digital control circuitry adapted for controlling at least one transistor of a DC voltage converter and regulating the output voltage of the DC converter, the digital control circuitry comprising:

• a controller determination block configured to determine whether an output voltage of the DC converter is within a first or second voltage range;
• a first control block configured to receive a first feedback signal indicative of said output voltage, and to generate, when the output voltage is in said first voltage range, a first control signal for restoring a desired output voltage value, the first control signal based on a value of the first feedback signal;
• and
• a second control block configured to receive a second feedback signal indicative of said output voltage, and to generate a second control signal for restoring the desired output voltage value, the second control signal based on a value of the second feedback signal.

A DC voltage converter comprising:

• a controller determination block adapted to determine which voltage range of a plurality of voltage ranges an output voltage of the DC voltage converter falls within;
• a first feedback control circuit, configured to generate a first control signal for restoring a desired output voltage value of the converter, the first control signal based on a value of a first feedback signal;
• and
• a second feedback control circuit, configured to generate a second control signal for restoring the desired output voltage value of the converter, the second control signal based on a value of a second feedback signal;
• wherein the controller determination block is adapted to activate the first feedback control circuit or the second feedback control circuit depending on which voltage range the output voltage of the DC voltage converter falls within.

A method for controlling the output voltage of a DC voltage converter comprising:

• determining, by a controller determination block, which voltage range of a plurality of voltage ranges the output voltage of the DC voltage converter falls within;
• and
• activating, responsive to determining that the output voltage falls within a first voltage range, a first feedback control circuit configured to restore an operating voltage according to a first method;
• and
• activating, responsive to determining that the output voltage falls within a second voltage range, a second feedback control circuit configured to restore the operating voltage according to a second method.