Abstract: A modularized control circuit with a signal-capturing function for a fan motor is disclosed. The modularized control circuit includes a driven circuit and a microcontroller integrated circuit. The driven circuit is electrically connected to the fan motor to produce at least one analog driven voltage signal, thus driving the fan motor. The microcontroller integrated circuit is electrically connected to the driven circuit and includes a signal-capturing module, a control unit, and a driven signal generator. The signal-capturing module receives an external pulse signal to produce a cycle-capturing signal. The control unit is connected to the signal-capturing module and receives the cycle-capturing signal to produce a control signal. The driven signal generator is connected to the control unit to receive the control signal, thus producing a plurality of switch driven signals for controlling the driven circuit.

Abstract: A motor control system includes a voltage regulating module, an auxiliary activating module, and a drive module. The voltage regulating module is operable to receive a voltage and generate an electrical level regulated voltage by regulating the voltage. The auxiliary activating module is operable to generate a constant duty cycle signal and output the constant duty cycle signal for a period. The drive module is operable to receive the electrical level regulated voltage and the constant duty cycle signal, and control a motor based on the electrical level regulated voltage and the constant duty signal. Also, the present invention also discloses a fan which is applied to the above-mentioned motor control system.

Abstract: A camera module includes a lens module, a circuit board, an image sensor, a lens holder and a filter. The lens holder includes a hollow main body and a bottom base connected to the main body. The main body is connected to the lens module. The bottom base defines a receiving cavity. A sidewall of the bottom based defines at least one mounting hole close to the hollow main body and communicating with the receiving cavity. The filter is positioned on the bottom base and received in the receiving cavity. The at least one mounting hole is configured for allowing the filter to enter into the receiving cavity or be taken out of the receiving cavity. The circuit board is positioned on the bottom base. The image sensor is received in the receiving cavity and electrically connected to the circuit board.

Abstract: A camera module includes a lens assembly and a base board assembly. The lens assembly includes a lens, an internally threaded seat, and a barrel receiving the lens. The base board assembly includes a printed circuit board and a light sensing chip for receiving light through the lens. The seat defines a receiving cavity at least partially receiving the printed circuit board and the light sensing chip.

Abstract: A camera module includes a first circuit board, a holder, a lens module, an image sensor chip, a filter, and a second circuit board. The holder includes a sleeve and a base connected to an end of the sleeve. The lens module is received in the sleeve. The holder is mounted on the first circuit board. The base defines a first receiving portion. The image sensor chip is electrically fixed to the first circuit board and received in the first receiving portion. The filter is received in the first receiving portion corresponding to the image sensor chip. The second circuit board is electrically connected to the first circuit board. The second circuit board is received in the first receiving portion and fixed to the base.