Voltage control circuit and method for supplying an electrical component with a supply voltage

A voltage control circuit, comprising:

• an input (298) for supplying an input voltage (Vbat);
• an output (V2) for producing a supply voltage;
• a control input (13) for supplying a voltage control signal (AW) for adjustment of the supply voltage;
• a voltage converter (19, 19a) whose output voltage is variable, having a control input, designed to emit the output voltage at an output (297) from an input voltage, which is applied to the input (298), and a control signal at the control input;
• a control loop with the voltage converter (19, 19a) arranged between a first element (170) and a second element (150);
• the first element (170), designed to emit the difference between signals which are applied to a first and to a second connection (131, −), with the first connection (131) being coupled to the control input (13) and with the second connection (−) being coupled to the output (V2), forming a feedback path;
• the second element (150) designed to emit the sum at the output (V2) of signals which are applied to a first and to a second connection (V1, 152), with the first connection (V1) being coupled to the output (297) of the voltage converter (19, 19a), and the second connection (152) being coupled to the control input (13) of the voltage control circuit.