Patent ID: 11959983
Assignee: SIEMENS HEALTHINEERS AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The device as claimed in claim 2, wherein said negative feedback circuit comprises a first capacitor, a first resistor, and a second resistor, and wherein:
the first connection terminal of said capacitor is connected to the inverting input terminal of said first operational amplifier, and the second connection terminal of said first capacitor is connected to the first connection terminal of said first resistor;
the second connection terminal of said resistor is connected to the output terminal of said first operational amplifier;
said second resistor is connected in parallel between the first connection terminal of said first capacitor and the second connection terminal of said first resistor; and
the capacitance value of said first capacitor and the resistance values of said first resistor and said second resistor meet a requirement that after being input to the gate of said MOSFET array, the output signal of said first operational amplifier enables the source of said MOSFET array to output a constant preset current.