Patent ID: 11943853
Assignee: SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A full voltage sampling circuit, comprising:
a main sampling circuit configured to receive a first input voltage and a second input voltage, and configured to output a first sampling signal according to the first input voltage and the second input voltage, wherein the first sampling signal represents a differential voltage which indicates a difference between the first input voltage and the second input voltage;
an assist sampling circuit configured to receive the first input voltage and the second input voltage, and configured to output a second sampling signal according to the first input voltage and the second input voltage, wherein the second sampling signal represents the differential voltage; and
a processing circuit coupled to the main sampling circuit and the assist sampling circuit, and configured to select a larger one of currents or voltages of the first sampling signal and the second sampling signal as a sampling result to be outputted.