| 摘要 |
<p>The circuit has a primary current comparator (102), which determines a switch-off time of a primary side switch based on primary current. Control variable is return to the primary comparator in such a manner that the switch-off time of the primary side switch is additionally influenced based on the control variable to variably reduce the time period during which the primary current flows through the primary side main coil. The control variable is variably strengthened through a feedback network and the variable is reduced in dependence of the output load by a correction network. The reference voltage, which depends on the control variable, is produced as the reference. An independent claim is also included for a method for current and voltage regulation in switched mode power supply.</p> |
