Patent attributes
A power supply circuit for supplying power to at least two loads which are connected to said power supply circuit comprises a current source which can be operated in a clocked manner and has a control input for adjusting the power. At least two load strings are connected in parallel between a power supply connection, which is coupled to the current source, and a reference connection. Each load string has a load and charge storage means which is connected in parallel with the load. A switch is used to selectively switch the current path of the load string. A sensor having a sensor resistor which is connected in the current path of the load string is used to detect a current flowing through the connected load string. Furthermore, the controlled power supply circuit comprises a control circuit which is coupled to the switch and to the sensor of each load string for the purpose of activating each load string in a time-multiplexed manner.
