Abstract: A camera module includes an optics assembly, an actuator module, and detection circuitry for preventing the optics assembly from colliding with a mechanical stop due to physical impacts and disturbances. The actuator module includes a magnet and a coil. The detection circuitry detects an induced current caused by movement of the coil with respect to the magnet. The direction of the detected induced current indicates movement of the optics assembly in a particular direction along an optical axis. The detection circuitry provides a current to the coil to cause the optics assembly to move toward a particular position or direction. In some cases, the provided current may cause the optics assembly to move in a direction opposite of the movement that caused the induced current.

Abstract: A camera module includes an optics assembly, an actuator module, and detection circuitry for preventing the optics assembly from colliding with a mechanical stop due to physical impacts and disturbances. The actuator module includes a magnet and a coil. The detection circuitry detects an induced current caused by movement of the coil with respect to the magnet. The direction of the detected induced current indicates movement of the optics assembly in a particular direction along an optical axis. The detection circuitry provides a current to the coil to cause the optics assembly to move toward a particular position or direction. In some cases, the provided current may cause the optics assembly to move in a direction opposite of the movement that caused the induced current.

Abstract: A method for driving first and second voice coil motors (VCMs) by generating a first coil current through the first VCM and routing a portion (not all) of the first coil current through the second VCM when a first VCM movement command is commanding greater movement than a second VCM movement command. A second coil current is generated through the second VCM and a portion (not all) of the second coil current is routed through the first VCM, when the first VCM movement command is commanding smaller movement than the second VCM movement command. This may reduce power consumption. Other embodiments are also described and claimed.

Abstract: A method for driving first and second voice coil motors (VCMs) by generating a first coil current through the first VCM and routing a portion (not all) of the first coil current through the second VCM when a first VCM movement command is commanding greater movement than a second VCM movement command. A second coil current is generated through the second VCM and a portion (not all) of the second coil current is routed through the first VCM, when the first VCM movement command is commanding smaller movement than the second VCM movement command. This may reduce power consumption. Other embodiments are also described and claimed.