Abstract: A lithium ion battery diaphragm includes a film and a ceramic layer, the ceramic layer is formed on at least one surface of the film to form a structure in the shape of a grid on the at least one surface of the film. A method for manufacturing the lithium ion battery diaphragm is also provided.

Abstract: A method for recognizing a finger, including: sensing a recognized object which is placed on a fingerprint sensing device to generate a first frame; selecting at least one block from the frame, wherein each of the blocks comprises a plurality of block groups; computing a sequence of characteristic values of each of the block groups according to a plurality of Haar-like features; and respectively substituting the sequences of characteristic values of the block groups into a polynomial to determine whether the recognized object is a finger.

Abstract: A wireless detection and control device is provided, which is applicable a lighting device, and may include a first connection interface, a processing module, a detection module and a control module. The first connection interface may be detachably coupled to the power conversion module of the lighting device. The processing module may be coupled to the first connection interface. The detection module may include two second connection interfaces, and be detachably coupled to the processing module via one of the second connection interfaces; the detection module may detect the change of the surrounding environment to generate a detection signal. The control module may be detachably coupled to the processing module. The detection module may transmit the detection signal to the power conversion module, or transmit the detection signal to the control module for the control module to generate a control signal accordingly so as to control a controlled device.

Abstract: An AC-AC voltage transformation device is provide, which includes: a first diode (D1), its positive electrode connects to one end of a (AC) power source; a second diode (D2), its negative electrode connects to the joint of D1 and the power source; a third diode (D3), its positive electrode connects to the other end of the power source; a fourth diode (D4), its negative electrode connects to the joint of D3 and the power source, and its positive electrode connects to the positive electrode of D2; a transformer (10), its primary side has a first coil (N1) and a second coil (N2), wherein N1 connects to the negative electrode of D1, and N2 connects to the negative electrode of D3, and its secondary side connects to a load; an electrode switch (SW), one end thereof connects to the joint of D2 and D4, and the other end thereof connects to the joint of N1 and N2.

Abstract: A signal conversion device is provided, which may include a connection interface, a processing module, and a signal conversion module. The connection interface may be detachably coupled to the power conversion module of a lighting device, and may receive a wired control signal via the power conversion module. The processing module may be coupled to the connection interface. The signal conversion module may be coupled to the processing module and the connection interface, and may include an industrial communication protocol standard interface; the signal conversion module may convert the wired control signal into an industrial communication protocol standard signal so as to control at least one controlled device.

Abstract: An electric energy supply device for powering at least one lighting device may include a first wireless communication module, a multiplexing module and a driving module. The first wireless communication module may receive or transmit a first control signal based on the first wireless network communication protocol. The multiplexing module may identify the communication protocol type of the first control signal. The driving module may drive the light device according to the first control signal. According the communication protocol type, the multiplexing module may determine whether to control the driving module to drive the lighting device according to the first control signal or transmit the first control signal to the first controlled device corresponding to the communication protocol type to remotely control the first controlled device by using other electric energy supply devices as the data bridge path after receiving the first control signal via the first wireless communication module.

Abstract: A lighting device is provided, which may include a power converting module, a lighting module, a wireless receiving module and a wired receiving module. The power converting module may be coupled to the lighting module, the wireless receiving module and the wired receiving module. The wireless receiving module may receive a second control signal transmitted from a wireless control module by a wireless transmission technology, and convert the second control signal into a second converted control signal. The wired receiving module may receive a first control signal transmitted from a wired control module, and convert the first control signal into a first converted control signal. The power converting module may drive the lighting module and the wireless receiving module, and may adjust the luminous status of the lighting module according to the first and second converted control signals.

Abstract: An efficient perovskite solar cells can be synthesized from used car batteries by using both the anodes and cathodes of car batteries as material sources for the synthesis of lead iodide perovskite materials.

Abstract: An AC-AC power source conversion device, comprising a rectifier circuit (10), an active power factor correction circuit (20), an automatic charge pumping circuit (30) and an inverter circuit (40), wherein the rectifier circuit is connected to an AC power source (100), receives the electric energy therefrom, and then converts the same into the DC electric energy for output; the active power factor correction circuit is connected to the rectifier circuit, receives the electric energy therefrom, and outputs the same after promoting a power factor; the automatic charging pumping circuit is connected to the active power factor correction circuit, receives the electric energy therefrom, and then adjusts and outputs same; and the inverter circuit is connected to the automatic charge pumping circuit and a load (200), receives the electric energy therefrom, converts same into the AC electric energy, and then outputs same to the load.

Abstract: A wireless detection device may be applied to a lighting device. The wireless detection device may include a connection interface, a detection module, a processing module and a wireless communication module. The connection interface may be detachable coupled to the power conversion module of the lighting device, and coupled to the lighting module of the lighting device via the power conversion module. The detection module may be coupled to the connection module and may detect the change of the environment around the detection module to generate a detection signal. The processing module may be coupled to the detection module and the connection module. The wireless communication module may be coupled to the processing module. The detection module may transmit the detection signal to the power conversion module via the connection interface and/or transmit the detection signal to other lighting devices via the wireless communication module.

Abstract: A wired & wireless control system may include a plurality of control devices, a lighting control network and a plurality of gateways. Each of the control devices may wirelessly transmit a control signal corresponding to its communication protocol. The lighting control network may include a plurality of lighting devices, and these lighting devices may be coupled to one another via the internal wiring of the lighting control network; besides, each lighting device may receive the control signal corresponding to its communication protocol, and then transmit the control signal to another lighting device to convert the control signal into a conversion signal corresponding to its communication protocol. Each of the gateways may be coupled to at least one controlled device and receive the conversion signal corresponding to its communication protocol in order to control the at least one controlled device.

Abstract: A method for removing boron from boron-containing waste water includes performing oxidation/coagulation treatment on the boron-containing waste water in the presence of an oxidant (such as hydrogen peroxide) and a coagulant (such as barium hydroxide) to greatly reduce the boron content of the boron-containing waste water and then removing residual boron therefrom by an ion-exchange resin or reverse osmosis, such that the waste water thus treated meets effluent standards.

Abstract: An isolated AC-DC conversion device is provided, which include a rectifier circuit (10), an active power factor correction circuit (20), an isolated transformer (30) and an automatic charge pump circuit (40). The rectifier circuit is connected to an AC power source (100) to receive electrical energy outputted from the AC power source, convert the electrical energy to DC electrical energy and output the DC electrical energy. The active power factor correction circuit is connected to the output terminal of the rectifier circuit to receive the DC electrical energy outputted by the rectifier circuit, increase the power factor, and then output the DC electrical energy. The primary side of the isolation transformer is connected to the active power factor correction circuit. One side of the automatic charge pump circuit is electrically connected to the secondary side of the isolation transformer, and the other side is connected to a load (200).

Abstract: A flyback AC-DC conversion device and the conversion method thereof are provided. The device includes a rectifier circuit (R), an electronic switch (SW) and a flyback transformer (10) and an automatic charge pumping circuit (20), wherein the flyback transformer (10) is provided with a primary side and a secondary side, wherein the primary side is electrically connected to the rectifier circuit (R) and the electronic switch (SW); and one side of the automatic charge pumping circuit (20) is electrically connected to the secondary side of the flyback transformer (10), and the other side thereof is electrically connected to a load (200) so as to improve the conversion efficiency of a power source and be capable of restraining the ripple of an output voltage. Additionally, further disclosed is a power conversion method for the flyback AC-DC conversion device.

Abstract: A power conversion device is provided, which includes a first inductor (L1), switch assembly (20), diode (D), first capacitor (C1), second inductor (L2) and a second capacitor (C2). One end of the first capacitor is connected to the positive terminal (12) of a DC power source (300). One end of the switch assembly is connected to the other end of the first inductor, and the other end is connected to the negative terminal (14) of the DC power source. The positive electrode of the diode is connected to the switch assembly. One end of the first capacitor is connected to the negative electrode of the diode. The second inductor is connected in parallel with the first capacitor. The second capacitor is connected in parallel with a load (200), one end of the capacitor is connected to the second inductor, and the other end is connected to the negative terminal.

Abstract: A power conversion apparatus, which converts power of a DC power supply and provides it to the loading, includes a transformer, an electronic switch, a leakage energy recycling circuit, and a output circuit. The transformer has a primary winding, which receives the power, and a secondary winding, which outputs the converted power. An end of the electronic switch is electrically connected to the primary winding; another end thereof is electrically connected to the DC power supply. The leakage energy recycling circuit is electrically connected to the primary winding, and repeatedly and alternatively outputs power of positive and negative voltage. The circuit receives and stores leakage energy of the transformer, and feedbacks it to the transformer. The output circuit is electrically connected to the secondary winding to receive the converted power and to provide it to the loading.

Abstract: An electric energy supply device for powering at least one lighting device may include a first wireless communication module, a multiplexing module and a driving module. The first wireless communication module may receive or transmit a first control signal based on the first wireless network communication protocol. The multiplexing module may identify the communication protocol type of the first control signal. The driving module may drive the light device according to the first control signal. According the communication protocol type, the multiplexing module may determine whether to control the driving module to drive the lighting device according to the first control signal or transmit the first control signal to the first controlled device corresponding to the communication protocol type to remotely control the first controlled device by using other electric energy supply devices as the data bridge path after receiving the first control signal via the first wireless communication module.

Abstract: An isolated power conversion apparatus includes an isolation transformer and an auto charge pump circuit. The isolation transformer has a primary side and a second side, wherein the primary side is electrically connected to a pulsed power supply, and the secondary side has a first end and a second end; the auto charge pump circuit electrically connects the isolation transformer to a loading to improve power conversion efficiency and suppress output voltage ripples.

Abstract: A lighting device is provided, which may include a power converting module, a lighting module, a wireless receiving module and a wired receiving module. The power converting module may be coupled to the lighting module, the wireless receiving module and the wired receiving module. The wireless receiving module may receive a second control signal transmitted from a wireless control module by a wireless transmission technology, and convert the second control signal into a second converted control signal. The wired receiving module may receive a first control signal transmitted from a wired control module, and convert the first control signal into a first converted control signal. The power converting module may drive the lighting module and the wireless receiving module, and may adjust the luminous status of the lighting module according to the first and second converted control signals.

Abstract: A passive power factor correction circuit includes: a DC capacitor and an input capacitor, coupled to a rectifying circuit and charged by a DC voltage from the rectifying circuit; an output capacitor, coupled to a load; first diode and a second diode, coupled to the input capacitor and the output capacitor; and an inductor, coupled to the load, the input capacitor and the output capacitor. Charging into and discharging from the DC capacitor are completed within a half cycle of an input AC voltage.