Control circuit and camera iris driving device

A driving device of a camera iris, the driving device comprising:

• a first position sensor, configured to detect a first sensing signal based on a first iris position, when the iris is moved between a first aperture position and a second aperture position;
• a second position sensor, configured to detect a second sensing signal based on a second iris position, when the iris is moved between the first aperture position and a second aperture position;
• a signal processing circuit, configured to generate a detected position value corresponding to a current position of the iris, based on the first sensing signal and the second sensing signal;
• a control circuit, configured to set a section between the first aperture position and the second aperture position to a plurality of control sections, and upon receiving a command to change the aperture of the iris, performing a corresponding control operation for each of the plurality of control sections, to control a movement operation of the iris, based on the detected position value;
• and
• a driving circuit, configured to generate a driving current, and provide the generated driving current to a coil that is configured to drive the iris under control of the controller.

An electronic device comprising:

• a camera module including a camera iris aperture control system;
• wherein the camera iris aperture control system comprises:
• position sensors, configured to generate a first sensing signal of a first iris aperture position, and generate a second sensing signal of a second iris aperture position;
• a signal processing circuit, configured to detect a current iris aperture position based on the first sensing signal and the second sensing signal;
• a control circuit, configured to set a plurality of control sections between the first iris aperture position and the second iris aperture position;
• and
• a driving circuit, configured to move the first aperture position and the second iris aperture position separately to one of the plurality of control sections based on a control signal from the control circuit.