A method for operating an electronic system consisting of several functional units (FE1,..., FEn), wherein the energy consumption of functional units (FE1,..., FEn) of the system is controlled, such i. that a gradient value (diFE1,..., diFEx,..., diFEn) of the current value for functional units (FE1,..., FEn), generated at least partially by temporal differentiation (d/dt) using circuit technology, is formed separately due to at least one temporal progression of the current detected within the system (IFE1,..., IFEx,..., IFEn), ii. that the control (control 1,..., control n) of at least one clock signal (CLK1,..., CLKx,..., CLKn) of one of the functional units (FE1,..., FEn) of the system takes place in each case on the basis of the gradient value (diFE1,..., diFEx,..., diFEn), iii. that the control signals (RCLK1,..., RCLKx,..., RCLKn) are interconnected with clock generator units (TGA1,..., TGAn) effecting the clock signal control, whereby dependencies of functional units (FE1,..., FEn) of the system are considered and used among each other, and iv. that the control of at least one clock signal of the system is performed, such that a higher clock rate is allowed in the case of a positive gradient, while the clock rate is reduced in the case of a negative gradient, whereby control of the system takes place, such v. that if the current consumption (IFEx) of the system increases at a first time instance due to increased activity, a control signal (RCLKx) is generated based on the positive gradient (diFEx) and with a corresponding control rule, which is predefined in accordance with the requirements of the electronic system to be controlled, which control signal produces a defined increase in the frequency of the clock generation (CLKx) at a second time instance via the clock generator unit, whereby the increase in the current consumption (IFEx) resulting from the increase of the frequency of the clock signal (CLKx) between the second time instance and a third time instance is ignored, and vi. that if the current consumption of the system drops at a further time instance, as a result of a reduced activity, a control signal (RCLKx) is generated based on the negative gradient (diFEx) and with a corresponding control rule, which is specified in accordance with the requirements of the electronic system to be controlled, which control signal produces a defined reduction in the frequency of the clock generation (CLKx) via the clock generator unit at a subsequent time instance, whereby the reduction in the current consumption (IFEx) resulting from the reduction of the frequency of the clock signal (CLKx) between the subsequent instance and a subsequent time instance is ignored. i. that a gradient value (diFE1,..., diFEx,..., diFEn) of the current value for functional units (FE1,..., FEn), generated at least partially by temporal differentiation (d/dt) using circuit technology, is formed separately due to at least one temporal progression of the current detected within the system (IFE1,..., IFEx,..., IFEn), ii. that the control (control 1,..., control n) of at least one clock signal (CLK1,..., CLKx,..., CLKn) of one of the functional units (FE1,..., FEn) of the system takes place in each case on the basis of the gradient value (diFE1,..., diFEx,..., diFEn), iii. that the control signals (RCLK1,..., RCLKx,..., RCLKn) are interconnected with clock generator units (TGA1,..., TGAn) effecting the clock signal control, whereby dependencies of functional units (FE1,..., FEn) of the system are considered and used among each other, and iv. that the control of at least one clock signal of the system is performed, such that a higher clock rate is allowed in the case of a positive gradient, while the clock rate is reduced in the case of a negative gradient, whereby control of the system takes place, such v. that if the current consumption (IFEx) of the system increases at a first time instance due to increased activity, a control signal (RCLKx) is generated based on the positive gradient (diFEx) and with a corresponding control rule, which is predefined in accordance with the requirements of the electronic system to be controlled, which control signal produces a defined increase in the frequency of the clock generation (CLKx) at a second time instance via the clock generator unit, whereby the increase in the current consumption (IFEx) resulting from the increase of the frequency of the clock signal (CLKx) between the second time instance and a third time instance is ignored, and vi. that if the current consumption of the system drops at a further time instance, as a result of a reduced activity, a control signal (RCLKx) is generated based on the negative gradient (diFEx) and with a corresponding control rule, which is specified in accordance with the requirements of the electronic system to be controlled, which control signal produces a defined reduction in the frequency of the clock generation (CLKx) via the clock generator unit at a subsequent time instance, whereby the reduction in the current consumption (IFEx) resulting from the reduction of the frequency of the clock signal (CLKx) between the subsequent instance and a subsequent time instance is ignored.