Patent ID: 8638083

Claim:
A control module comprising: a housing; a control part that is designed to control an electrically adjustable piece of furniture; and a switch-mode power supply that supplies the control part, wherein the control part and the switch-mode power supply are integrated into the housing; wherein the switch-mode power supply has a first stage and a second stage, wherein the first stage is designed to generate an intermediate voltage from a mains voltage applied to the switch-mode power supply on an input side and wherein the second stage is designed to generate a direct-current voltage from the intermediate voltage with a switch-mode regulator component in a switched mode, wherein the direct-current voltage is fed to the control part for generating at least one output voltage of the control module; wherein the switch-mode power supply is designed to be switched into an idle operating state as a function of a ready signal; wherein the switch-mode power supply is designed to provide a supply voltage in a clocked manner for the switch-mode regulator component in the idle operating state by a start-up circuit that has an energy storage device and a resistance element and to provide a supply voltage continuously in a normal operating state by an operating supply circuit; and wherein the energy storage device and the resistance element are dimensioned such that, in the idle operating state, a time span for charging the energy storage device is greater than a time span for discharging the energy storage device by the switch-mode regulator component.