| 摘要 |
A power supply circuit (106) for a switching voltage regulator (108) connectable to a load (110) is described. In order to manage a power consumption of the switching voltage regulator (108) and in particular to minimize a power consumption of the switching voltage regulator when being operative, the power supply circuit (106) is configured for selectively supplying the switching voltage regulator (108) with one of a first input voltage and a second input voltage in response to a control signal indicative of an operative state of the load (110) such that the switching voltage regulator (108) is switched between a working state in response to the first input voltage and a standby state in response to the second input voltage. |
