| 摘要 |
A power supply system including switched-mode power supply circuitry configured to generate a DC output voltage from a DC input voltage and soft-start feedback circuitry configured to control the switched-mode power supply circuitry to generate a predefined output voltage during a soft-start period of operation. The soft-start feedback circuitry includes a controllable current source configured to generate a reference current and a reference voltage, wherein the reference current is based on a difference between the reference voltage and a feedback voltage proportional to the output voltage, and amplifier circuitry configured to compare the feedback voltage with the reference voltage and generate a control signal to control the operation of the switched-mode power supply during a soft-start period of operation. |
