Patent ID: 7961030

Claim:
A timing control apparatus, wherein the timing control apparatus connect to a power source through a first switch to generate a plurality of voltage sources to an electronic system, wherein the timing control apparatus controls the on/off timing of the voltage sources, comprising: a plurality of delay circuits coupling with the voltage sources respectively; a plurality of discharging circuits coupling with the delay circuits respectively, wherein each of the discharging circuits includes a second switch; and a third switch with a first end coupling with the power source and a second end coupling with a ground voltage, wherein after the first switch disconnects the timing control apparatus from the power source, the third switch is turned off to make the second switches be turned on by the power source to control the discharging circuits discharging the delay circuits respectively, and after the first switch connects the timing control apparatus to the power source, the third switch is turned on to make the second switches be turned off by the ground voltage to control the power source to charge the delay circuits respectively.