Patent ID: 9432019
Filing Date: 2016-08-30
CPC Classification: H03K

Claim Text:
1. A control chip for power saving, operable to receive a first voltage generated from a switching regulator and a first bias voltage generated from a voltage biasing circuit, the control chip comprising: a microcontroller unit, operatively receiving the first voltage for controlling the operation of at least one component under an operating mode, and stopping receiving the first voltage under a power saving mode; and a low power module coupled to the microcontroller unit, operatively receiving the first bias voltage; wherein the low power module operatively generates a first control signal to turn off the switching regulator to stop the microcontroller unit from receiving the first voltage when the microcontroller unit has switched from the operating mode to the power saving mode; the low power module operatively generates a second control signal responsive to a trigger signal to turn on the switching regulator to cause the microcontroller unit to continue receiving the first voltage.