Patent ID: 11871923
Assignee: CILAG GMBH INTERNATIONAL
Field: Medical technology (Instruments)
Classification: CPC A  H | IPC A  H

Claim 10:
11. A surgical instrument comprising:
an end effector comprising a moveable firing driver;
an electric motor for actuating the firing driver; and
a motor control circuit for controlling the motor, wherein the motor control circuit comprises:
a power source comprising a negative terminal and a positive terminal;
a charge accumulator device comprising a first terminal and a second terminal, wherein the charge accumulator device is configured to be chargeable with a voltage potential across the first and second terminals; and
a switching circuit connected to the power source and the charge accumulator device, wherein the switching circuit comprises:
a first switch that, when closed, provides a current path from the positive terminal of the power source to the motor;
a second switch that, when closed, provides a current path from the positive terminal of the power source to the first terminal of the charge accumulator device; and
a third switch that, when closed, provides a current path from the negative terminal of the power source to the second terminal of the charge accumulator device.