Control circuit for controlling the voltage of the exit of a source of switched mode power controlled in grade school.The power source switched mode and method for controlling the voltage out of a power source switched mode controlled primary using a control circuit.

摘要

"Control circuit to control the voltage of the exit of a source of switched mode power controlled in grade school.The power source switched mode and method for controlling the voltage out of a power source switched mode controlled primary using a control circuit.The present invention relates to a control circuit for closed loop control of a voltage of the output of a power source switched mode controlled in grade school.As well as a method associated with it.The power source switched mode includes a switch on the primary side and a transformer with at least one auxiliary winding in which an auxiliary voltage is induced after the aberturThe switch on the primary side.The voltage induced in at least one auxiliary winding provides the basis for the measurement voltage passed to the control circuit and the supply voltage of the control circuit.The invention also relates to a power source associated with switched mode.In order to overcome the problems of the control circuits known and to obtain an improved control circuit for a switched mode power supply controlled in the primary,It can be built to increase the precision of control, but with a small size and low cost components.The control circuit comprises a voltage measurement connection for connection to the voltage measurement and a connection of the supply voltage separate from one another for connection to a voltage DAnd food that is produced from the auxiliary voltage.