| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and apparatus for a switching regulator. <P>SOLUTION: A control terminal of a switching regulator is the terminal to be coupled to an output part of a power supply. The switching regulator is coupled to the control terminal and comprises a control circuit which generates a feedback signal responding to output of the power supply. The control circuit 147 also generates a drive signal that is coupled to control switching of a power switch. The control circuit generates the drive signal, responding to the feedback signal. The drive signal has a fixed frequency for a first range of feedback signal values and operates at a variable frequency, without skipping cycles for a second range of the feedback signal values. <P>COPYRIGHT: (C)2013,JPO&INPIT |
