| 摘要 |
The invention concerns a control circuit arranged to generate a control signal (V C ) for controlling at least one transistor of a switched mode power supply (SMPS, 102) during first, second and third successive time periods based on a feedback voltage (V F ), wherein during the first and third time periods the control circuit is adapted to regulate the output voltage of the SMPS to a first voltage level, and during the second time period the control circuit is adapted to control the SMPS to output a low voltage, the control circuit having a memory (304) adapted to store an indication of the control signal generated by the control circuit at the end of the first time period, wherein the control circuit is adapted to output a control signal based on the stored indication at the start of the third time period. |
