Abstract:
A voltage control circuit includes a processing unit, a power control circuit, a first impedance circuit, a first switch, and a current source. The power control circuit is used for outputting a core voltage to the processing unit. The first switch and the first impedance circuit are connected in parallel between the processing unit and the power control circuit, and they feedback a feedback voltage to the power control circuit. The current source is used for providing or extracting an operating current via the first impedance circuit or the first switch. The first switch is turned on and the processing unit receives a first core voltage when the processing unit operates at a normal mode. The first switch is turned off and the processing unit receives a second core voltage when the processing unit operates at an overvoltage mode.
Abstract:
A thermal protecting device of a speaker is provided. The thermal protecting device includes an amplifier and a temperature detecting unit. An input end of the amplifier receives an audio reference signal, an output end of the amplifier provides an audio output signal to the speaker. The temperature detecting unit receives an audio input signal to provide the audio reference signal, and detects an operation temperature of the speaker to determine an amplitude of the audio reference signal. The amplitude is inversely proportional to the operation temperature.
Abstract:
A button-type connector module and an electronic device using the button-type connector module are provided. The electronic device is adapted to the pluggable hot plug component. The electronic device includes a main body and a button-type connector module. The main body includes a motherboard. The button-type connector module is disposed in the main body. The button-type connector module includes a push button unit, a connector and a circuit board. The connector includes an accommodation recess. The hot plug component is plugged into or removed from the accommodation recess, when the connector moves relative to the main body to expose the accommodation recess. The circuit board is disposed between the push button unit and the connector. The push button unit and the connector are electrically connected to the motherboard of the main body via the circuit board.
Abstract:
A display mode adjusting method and a display mode adjusting module executing the adjusting method are provided. The method includes the following steps: generating a saturation adjusting output color according to an input color to adjust the saturation; obtaining a relative color temperature adjusting parameter according to a target color temperature and an original optical characteristic of a display device; generating a color temperature adjusting output color according to the saturation adjusting output color and the relative color temperature adjusting parameter to adjust the color temperature; obtaining a brightness adjustment value according to the brightness of ambient light to adjust the brightness. Therefore, the display mode of the display device is adjusted to suitable for reading, which avoids the eyestrain when the users read for a long time.
Abstract:
A battery includes a casing and a plurality of cell coils. The casing includes a bottom and a top, the bottom or the top surface of the casing are not symmetrical with each other and the multiple cell coils are placed in the casing and are electrically connected to each other. Each of the cell coils includes a positive node, a negative node and an insulation sheet, and the insulation sheet is between the positive node and the negative node. An outer diameter of the cell coil changes along with the shape of the casing. A manufacture method of a battery is provided.
Abstract:
A computer device and a method for converting a working mode of a universal serial bus (USB) connector of the computer device. The computer device comprises a USB connector, a power interruption unit, a first switch unit, a south bridge chip, a reading unit, a control unit, and a charging control unit. The USB connector is linked to an external USB device. When a fast charging instruction is received, the power interruption unit interrupts the power supply of the USB connector; the first switch unit performs switching, so that the USB connector works in a fast charging mode. When the control unit receives a common charging instruction, the power interruption unit interrupts the power supply of the USB connector; the first switch unit performs switching, so that the USB connector works in a common charging mode, and data transmission can be performed.
Abstract:
A voltage regulator device includes at least one output unit, a current sensing unit, a control unit, at least one transistor driving unit and a pulse width modulation unit. The output unit outputs an output signal. The output unit includes a first transistor, a second transistor and an energy storage element. The second transistor is electronically connected to the first transistor and the energy storage element, respectively. The current sensing unit is electronically connected to a first end and a second end of the energy storage element. The control unit is electronically connected to the current sensing unit and the output unit, respectively. The transistor driving unit is disposed corresponding to the output unit and is electronically connected to the control unit and the output unit. The pulse width modulation unit is electronically connected to the control unit and the transistor driving unit, respectively.
Abstract:
An image processing device includes a camera unit, a control unit, an image processing unit and a storage unit. The camera unit obtains a first image. The control unit coupled to the camera unit adjusts an exposure value of the camera unit to control an average luminance value of the dark part of the first image and a contrast value of the first image. The storage unit is coupled to the control unit. The image processing unit is coupled to the camera unit and the storage unit, and it generates a second image according to the first image and a first algorithm stored in the storage unit, and generates a third image according to the first image and a second algorithm stored in the storage unit. The image processing unit generates a fourth image according to luminance values of the first image, the second image and the third image.