Patent ID: 11934615
Assignee: LX SEMICON CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A touch power management circuit comprising:
a first driving signal generating circuit outputting a finger touch driving signal in a finger touch driving period;
a second driving signal generating circuit outputting a pen touch driving signal in a pen touch driving period; and
a load free driving (LFD) signal generating circuit outputting a load free driving signal in the finger touch driving period and the pen touch driving period,
wherein a first modulation voltage and a second modulation voltage are alternated in the finger touch driving signal,
a first power voltage and a second power voltage are alternated in the pen touch driving signal,
a gate low voltage and a third modulation voltage are alternated in the load free driving signal during the finger touch driving period, and
the gate low voltage and a third power voltage are alternated in the load free driving signal during the pen touch driving period.