Patent ID: 11889863
Assignee: CHANGZHOU PATENT ELECTRONIC TECHNOLOGY CO., LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC A  H | IPC A  H

Claim 3:
4. The voltage output circuit according to claim 1, wherein a first power receiving terminal (32) of the control chip (U6) is grounded through a first filter capacitor (C2) and receives the system power supply voltage through a fifth current limiting resistor (R14); and/or,
the first channel terminal (26) of the buck switch chip (U2) is further grounded through a second filter capacitor (C3); and/or,
the touch input pin (25) of the touch sensing chip (U8) is further grounded through a third filter capacitor (C6); and/or,
a second power input terminal (33) of the touch sensing chip (U8) receives the system power supply voltage and is grounded through a fourth filter capacitor (C7).