Abstract: Provided are a circuit apparatus, a manufacturing method thereof, and a circuit system. The circuit apparatus includes a flexible circuit board, a flexible packaging material layer and an electronic device. The flexible circuit board has at least one hollow pattern, wherein the flexible circuit board has an inner region and a peripheral region surrounding the inner region, and has a first surface and a second surface opposite to each other. The flexible packaging material layer is disposed in the at least one hollow pattern. The electronic device is disposed on the first surface of the flexible circuit board and electrically connected with the flexible circuit board.

Abstract: A single-cluster lamp drive device makes use of a controller to receive video data from a control system and then divides the video data into three sub video data. Next, these three sub video data are simultaneously and repetitively outputted to a digital-to-analog converter in every fixed time interval. Subsequently, the digital-to-analog converter converts these three sub video data to three analog voltages outputted to a voltage-to-current converter. Finally, the voltage-to-current converter converts these three analog voltages to three analog currents for driving light emitting devices to emit light, hence accomplishing voltage-in-current-out driving. The drive device drives a single-cluster lamp composed of one LED or several LEDs to adjust their brightness through current change, thereby coordinating with the control system to produce various color and pattern variations.

Abstract: A single-cluster lamp drive device makes use of a controller to receive video data from a control system and then divides the video data into three sub video data. Next, these three sub video data are simultaneously and repetitively outputted to a digital-to-analog converter in every fixed time interval. Subsequently, the digital-to-analog converter converts these three sub video data to three analog voltages outputted to a voltage-to-current converter. Finally, the voltage-to-current converter converts these three analog voltages to three analog currents for driving light emitting devices to emit light, hence accomplishing voltage-in-current-out driving. The drive device drives a single-cluster lamp composed of one LED or several LEDs to adjust their brightness through current change, thereby coordinating with the control system to produce various color and pattern variations.

Abstract: A light emitting device single-cluster lamp control system makes use of a central controller connected with several mutually cascading signal distributors to process already-edited video or multimedia. The central controller then outputs different video data based on the processed video or multimedia, and separately sends the video data via these signal distributors to various light emitting device single-cluster lamp groups to display an image pattern corresponding to the video data. Each light emitting device single-cluster lamp group is installed at a light emitting body (e.g., a building lighting, a landscape lighting, or a billboard) composed of several light emitting device single-cluster lamps.

Abstract: A safety clamp, which includes a link for connection to a crane or the like, a steering mechanism, the steering mechanism including a casing, a ratchet wheel mounted in the casing and connected to the link, and steering control means for controlling the direction of rotation of the ratchet wheel, a supporting bar connected to the casing, a movable bar connected to the ratchet wheel and turned with the ratchet wheel and the link relative to the casing and the supporting bar, and a clamping bar connected to the movable bar and worked with the supporting bar to hold an object between the clamping bar and the supporting bar for enabling the object to be lifted with the safety clamp.