Abstract: A sensing device includes a micro-electromechanical sensor, a source follower and an amplifier. The source follower includes a first output module including a first transistor and a second transistor. The micro-electromechanical sensor is configured to generate an input signal. A first terminal of the first transistor is configured to receive a first reference voltage. A second terminal and a control of the first transistor are electrically connected to the first output terminal and to a first current source respectively. A first terminal and a second terminal of the second transistor are electrically connected to the second terminal and the control terminal of the first transistor respectively. A control terminal of the second transistor is configured to receive the input signal. A first input terminal and a second input terminal of the amplifier are electrically connected to a first output terminal configured to receive a common-mode voltage respectively.

Abstract: A configurable amplifier module is disclosed. The configurable amplifier module includes a first amplifier having a non-inverting input, an inverting input, and a first output; a second amplifier having a non-inverting input, an inverting input, and a second output; a first resistor; a second resistor; a third resistor; a detecting unit connected to the second output of the second amplifier and configured to detect whether a current flows through the detecting unit; and a control unit connected to the second resistor and the detecting unit and configured to control the second resistor to be connected to the third resistor or a direct current signal.

Abstract: An analog microphone and a control method thereof are disclosed. The analog microphone includes a sensor configured to sense an audio signal and convert the audio signal into an electrical signal; a charge pump configured to provide a bias voltage for the sensor to drive the sensor; a source follower configured to receive the electrical signal and convert the electrical signal into a source follower signal; a gain adjustable amplifier configured to receive the source follower signal, multiply the source follower signal by an amplifying factor, and output an amplified signal; and a detecting module configured to adaptively control the bias voltage of the charge pump and the amplified signal of the gain adjustable amplifier in response to the source follower signal of the source follower.

Abstract: A circuit board assembly includes a circuit board, a shielding frame, a chip, and a heat dissipating member. The shielding frame is fixed to and protrudes from the circuit board. The shielding frame includes a first encircled positioning portion away from the circuit board. The chip is disposed on the circuit board and is located in the shielding frame. The heat dissipating member is detachably disposed on the shielding frame, and includes a plate and a second encircled positioning portion disposed on the plate. When the heat dissipating member is disposed on the circuit board, the plate leans against the shielding frame and covers the chip, the second encircled positioning portion and the first encircled positioning portion correspond with each other in shape and position, so as to position the plate and the shielding frame. A shielding device is also disclosed.

Abstract: A synchronous backlight device and an operation method thereof are provided. The synchronous backlight device includes a pulse width modulation (PWM) control circuit and a backlight driving circuit. The PWM control circuit receives the video sync information from a video processing circuit and generates a PWM control signal. Wherein, the video sync information defines a plurality of video frame periods, the PWM control circuit at least divides each of the video frame periods into a first period and a second period, the lengths of the first periods of the video frame periods are equal to one another. The frequency of the PWM control signal in the first periods is different from the frequency of the PWM control signal in the second periods. The backlight driving circuit drives the backlight source of a display panel in accordance with the PWM control signal.

Abstract: A circuit arrangement for controlling a backlight source and an operation method are provided. The circuit arrangement includes a generator. The generator receives a sync signal and generates a pulse width modulation signal synchronous with the sync signal to control the backlight source. The sync signal indicates a frequency of a video including a series of image frames. The sync signal includes a sync period corresponding to a frame of the video. The pulse width modulation signal includes a first waveform pattern in a first sub-period of the sync period and a second waveform pattern in a second sub-period of the sync period. Each of the first waveform pattern and the second waveform pattern includes at least one active pulse. The first waveform pattern is substantially identical to the second waveform pattern.

Abstract: A sensing device includes a MEMS sensor and an adjustable amplifier. The MEMS sensor is configured to generate an input signal according to environmental changes. The adjustable amplifier has a first input terminal, a second input terminal, a third input terminal, a fourth input terminal and a first output terminal. The first input terminal is electrically connected to the MEMS sensor for receiving the input signal. The second input terminal is electrically connected to a first signal terminal for receiving a first common-mode signal. The third input terminal is electrically connected to the first output terminal. The fourth input terminal is electrically connected to a second signal terminal. An electric potential of a first output signal output by the first output terminal of the adjustable amplifier is related to electric potentials of the input signal, the first signal terminal and the second signal terminal.

Abstract: A video interface conversion apparatus comprises a video interface circuit, a video clock adjustment information generation circuit and a video clock recovery circuit. The video interface circuit generates at least one original synchronization signal according to a control signal, and fetches video data from a data signal according to a video synchronization signal. The video clock adjustment information generation circuit generates video clock adjustment information and the video synchronization signal according to the original video synchronization signal and a video clock. The video clock recovery circuit receives an original clock and the video clock adjustment information, and recovers the video clock by adjusting the original clock according to the video clock adjustment information.

Abstract: A charge pump circuit includes N boosting circuits, (N?2) switching circuits and a control circuit. A kth boosting circuit includes a unidirectional component and a capacitor. A positive terminal of the unidirectional component of the kth boosting circuit is electrically connected to a negative terminal of a unidirectional component of a (k?1)th boosting circuit. A first terminal of the capacitor of the kth boosting circuit is electrically connected to a negative terminal of the unidirectional component of the kth boosting circuit. A (2i?1)th switching circuit selectively conducts a current path from a (2i?1)th boosting circuit to a first clock terminal or to a ground terminal according to a control signal of the control circuit. A (2i)th switching circuit selectively conducts a current path from a (2i)th boosting circuit to a second clock terminal or to the ground terminal according to the control signal of the control circuit.

Abstract: A source follower includes a first transistor, a first output module, a second transistor, a second output module and a feedback module. The first terminal and the control terminal of the first transistor are configured to respectively receive a first base voltage and a first control voltage. The second terminal of the first transistor and the first output module are electrically connected to a first output terminal. The first terminal and the control terminal of the second transistor are configured to respectively receive a first base voltage and a second control voltage. The second terminal of the second transistor and the second output module are electrically connected to a second output terminal. The feedback module is electrically connected to the control terminal of the first transistor, the control terminal of the second transistor and a reference node of the second output module.

Abstract: A sensor for detecting heavy metals in water is provided. The sensor includes a first electrode and a second electrode, the first electrode and the second electrode having complimentary interdigitated surfaces that are separated from each other by a first gap having a distance of greater than or equal to about 500 nm to less than or equal to about 10 ?m. The sensor also includes a power source connectable to the first electrode and the second electrode. The sensor is configured to continuously monitor water for the presence of heavy metals. Methods of making and using the sensor are also provided.

Abstract: A programmable gain amplifier includes an active load module, a first differential pair, a second differential pair and a power source module. The first and second differential pairs are electrically connected to the active load module. The power source module is electrically connected to the first current source end of the first differential pair and the second current source end of the second differential pair. The power source module supplies a first current to the first differential pair through the first current source end. The power source module supplies a second current to the second differential pair through the second current source end. The power source module adjusts the potential of the first current, the potential of the second current, or both.

Abstract: An active stylus pen comprises a touch component and a pressure sensing module. One end of the touch component is disposed at a nib part of the active stylus pen, wherein the touch component is configured to receive an external pressure. The pressure sensing module is connected to the touch component, wherein the pressure sensing module is configured to generate an oscillation signal, wherein the oscillation signal has a first frequency when the touch component receives the external pressure and the external pressure reaches a first threshold value, and wherein the oscillation signal is adjusted to have a second frequency when the touch component receives the external pressure and the external pressure does not reach the first threshold value; wherein a difference of the first frequency and the second frequency is larger than a second threshold value.

Abstract: A charge pump circuit includes N boosting circuits, (N-2) switching circuits and a control circuit. A kth boosting circuit includes a unidirectional component and a capacitor. A positive terminal of the unidirectional component of the kth boosting circuit is electrically connected to a negative terminal of a unidirectional component of a (k-1)th boosting circuit. A first terminal of the capacitor of the kth boosting circuit is electrically connected to a negative terminal of the unidirectional component of the kth boosting circuit. A (2i-1)th switching circuit selectively conducts a current path from a (2i-1)th boosting circuit to a first clock terminal or to a ground terminal according to a control signal of the control circuit. A (2i)th switching circuit selectively conducts a current path from a (2i)th boosting circuit to a second clock terminal or to the ground terminal according to the control signal of the control circuit.

Abstract: A sensing device includes a MEMS sensor and an adjustable amplifier. The MEMS sensor is configured to generate an input signal according to environmental changes. The adjustable amplifier has a first input terminal, a second input terminal, a third input terminal, a fourth input terminal and a first output terminal. The first input terminal is electrically connected to the MEMS sensor for receiving the input signal. The second input terminal is electrically connected to a first signal terminal for receiving a first common-mode signal. The third input terminal is electrically connected to the first output terminal. The fourth input terminal is electrically connected to a second signal terminal. An electric potential of a first output signal output by the first output terminal of the adjustable amplifier is related to electric potentials of the input signal, the first signal terminal and the second signal terminal.

Abstract: A source follower includes a first transistor, a first output module, a second transistor, a second output module and a feedback module. The first terminal and the control terminal of the first transistor are configured to respectively receive a first base voltage and a first control voltage. The second terminal of the first transistor and the first output module are electrically connected to a first output terminal. The first terminal and the control terminal of the second transistor are configured to respectively receive a first base voltage and a second control voltage. The second terminal of the second transistor and the second output module are electrically connected to a second output terminal. The feedback module is electrically connected to the control terminal of the first transistor, the control terminal of the second transistor and a reference node of the second output module.

Abstract: A sensing device comprises a charge pump, a MEMS sensor, a source follower and a PGA. The charge pump is configured to provide a pump voltage. The MEMS sensor is electrically connected to the charge pump and configured to generate an input voltage according to environment variations. The source follower is electrically connected to the MEMS sensor and configured to generate a followed reference voltage according to the pump voltage and to generate a followed input voltage according to the input voltage. The PGA has an input end of the PGA electrically connected to the source follower and is configured to generate two-ended differential output voltages outputted through a first output end and a second output end according to a difference between the followed reference voltage and the followed input voltage.

Abstract: A programmable gain amplifier includes an active load module, a first differential pair, a second differential pair and a power source module. The first and second differential pairs are electrically connected to the active load module. The power source module is electrically connected to the first current source end of the first differential pair and the second current source end of the second differential pair. The power source module supplies a first current to the first differential pair through the first current source end. The power source module supplies a second current to the second differential pair through the second current source end. The power source module adjusts the potential of the first current, the potential of the second current, or both.

Abstract: A sensing device includes a micro-electromechanical sensor, a source follower and an amplifier. The source follower includes a first output module including a first transistor and a second transistor. The micro-electromechanical sensor is configured to generate an input signal. A first terminal of the first transistor is configured to receive a first reference voltage. A second terminal and a control of the first transistor are electrically connected to the first output terminal and to a first current source respectively. A first terminal and a second terminal of the second transistor are electrically connected to the second terminal and the control terminal of the first transistor respectively. A control terminal of the second transistor is configured to receive the input signal. A first input terminal and a second input terminal of the amplifier are electrically connected to a first output terminal configured to receive a common-mode voltage respectively.

Abstract: An exemplary Mobile High-Definition Link (MHL) data converter includes: a data decoding circuit, arranged for decoding an input data according to an MHL specification, and outputting a decoded data; and a data parsing circuit, coupled to the data decoding circuit, arranged for parsing out a plurality of output data from the decoded data. An MHL data converting method includes: decoding an input data according to an MHL specification, and outputting a decoded data; and parsing out a plurality of output data from the decoded data.