Siemens Aktiengesellschaft

Siemens Shanghai Medical Equipment Ltd.

Can Guo

Yun Yu Wang

Jun Wang

Ning Tao Yang

Guo Jun Han

Wen Ting Rui

A motor control circuit includes a switch circuit powered by a power supply to drive a motor to output a motion. A switch drive circuit sends a valid drive signal to the switch circuit to drive the motor to output the motion. A limit switch is associated with a position of the motor's motion output, enabling the motor to generate a feedback signal when the motor outputs the motion to the position in a direction. The switch drive circuit receives the feedback signal to cut off power from the power supply to the switch circuit, and the motor stops outputting motion. The motor control circuit feeds from the limit switch back to a controller. When the direction of the motion output by the motor is switched, the power from the power supply to the switch circuit is turned off using the feedback signal.

Motor control circuit and medical device

Disclosed in the present embodiments are a foldable pressing device and an X-ray machine. The foldable pressing device includes a motor, a lifting member, a pressing member, a linear guide member with a stop position, a pulling member and a resilient member. The lifting member, driven by the motor, causes a sliding element in the linear guide member with a stop position and the pressing member to move upwards. When the sliding element arrives at an uprising stop position, the pressing member, under the effect of the lifting member and the pulling member, overcomes the resistance of the resilient member to realize the folding thereof. The lifting member, driven by the motor, drives the pressing member to move downwards, and the pressing member is unfolded under the effect of the resilient member.

Foldable pressing device and X-ray machine

Growing community of inventors

Shanghai, China

Can Guo