Abstract: A transmission mechanism for a driven component which has a first through hole includes an actuating component rotatably disposed through the first through hole of the driven component, a transmission component located in the first through hole of the driven component, and an electromagnet located in the first through hole of the driven component and arranged at a side of the transmission component, the transmission component is selectively attracted to the electromagnet, the driven component is rotatable by the actuating component via the transmission component when the transmission component is attracted to the electromagnet.

Abstract: An asymmetric half-bridge converter is provided. The asymmetric half-bridge converter includes a switch circuit, a resonance tank, a current sensor, and a controller. The current sensor senses a waveform of a resonance current flowing through the resonance tank to generate a sensing result. The controller determines the sensing result. When the sensing result indicates that an ending current value of a primary resonance waveform of the resonance current is greater than a predetermined value, the controller performs a first switching operation on the switch circuit. When the sensing result indicates that the ending current value of the primary resonance waveform is less than or equal to the predetermined value, the controller performs a second switching operation on the switch circuit.

Abstract: An electronic device includes a first casing, a second casing, and a fastening assembly. The first casing has a first pivotal portion. The second casing has a second pivotal portion having a fastening groove, and a display unit pivotally connected with the first pivotal portion via the second pivotal portion to be capable of rotating relative to the first casing to be opened or closed. The second pivotal portion and the display unit form an angle. The fastening assembly is pivotally disposed in the first casing and includes a fastening element and a first elastic element. The fastening element is disposed corresponding to the fastening groove of the second pivotal portion. The first elastic element is connected with the fastening element. When the fastening element is fastened to the fastening groove, the first elastic element provides elastic force to allow the display unit to firmly cover the first casing.

Abstract: An electronic device includes a first casing, a second casing, and a fastening assembly. The first casing has a first pivotal portion. The second casing has a second pivotal portion having a fastening groove, and a display unit pivotally connected with the first pivotal portion via the second pivotal portion to be capable of rotating relative to the first casing to be opened or closed. The second pivotal portion and the display unit form an angle. The fastening assembly is pivotally disposed in the first casing and includes a fastening element and a first elastic element. The fastening element is disposed corresponding to the fastening groove of the second pivotal portion. The first elastic element is connected with the fastening element. When the fastening element is fastened to the fastening groove, the first elastic element provides elastic force to allow the display unit to firmly cover the first casing.

Abstract: A portable electronic device including a body, a control circuit, an object-image capture module, a first transmission mechanism and a receiver is provided. The control circuit is disposed in the body. The object-image capture module independent of the body includes a housing, an object-image capture circuit and a lens. The object-image capture circuit is disposed in the housing, and the lens is electrically connected to the control circuit by the object-image capture circuit. The first transmission mechanism includes a first shaft connected between the body and the object-image capture module. The receiver is electrically connected to the control circuit. The receiver is used to receive a signal and transmit the signal to the control circuit, such that the control circuit controls the first transmission mechanism to drive the object-image capture module to rotate about the first shaft.

Abstract: A portable computer is disclosed, which includes a host, a display, an image capturing module and a biaxial rotating structure. The host is used for processing digital data. The display is used for displaying the result of processing digital data. The image capturing module is pivoted on a frame of the display by the biaxial rotating structure, such that the image capturing module may rotate horizontally or vertically relative to the display, thus increasing the viewing angle of the image capturing module.