Abstract: An acousto-optic audio signal cable includes an audio wire cluster, a light emitting diode marquee light wire or a light emitting diodes light-emitting light string or an electroluminescent cable, a transparent or light-transmitting insulating layer, and an acousto-optic controller. The light emitting diode marquee light wire and the audio wire cluster, or the light emitting diodes light-emitting light string and the audio wire cluster, or the electroluminescent cable and the audio wire cluster are integrated into a wire cluster. The transparent or light-transmitting insulating layer wraps the integrated wire cluster. The acousto-optic controller includes a sampling amplifier circuit component, an A/D conversion circuit component, a microprocessor, and an output driver coupled in sequence. An input terminal of the sampling amplifier circuit component is coupled to the audio wire cluster. The output driver is coupled to the light emitting diode marquee light wire.

Abstract: A digital AC/DC power converter comprises an active PFC module, a single switch module having a single switch, a power output module having a transformer, a digital control module having a microcontroller, and a rectifying and filtering module having a full-bridge rectifier, an EMI filter, and a capacitor that is less than 1 ?F. The single switch is electrically connected to the active PFC module, and a primary winding of the transformer is electrically connected to the active PFC module. The microcontroller provides a PWM signal to control the switching state of the single switch, so that the active PFC module transforms AC frequency from less than 300 Hz into over 30,000 Hz and outputs a rectified AC voltage waveform. The EMI filter blocks high electromagnetic frequencies and the capacitor smooths a variation in the rectified voltage waveform and output the smoothed rectified voltage waveform to the active PFC module.

Abstract: A digital AC/DC power converter comprises an active PFC module, a single switch module having a single switch, a power output module having a transformer, a digital control module having a microcontroller, and a rectifying and filtering module having a full-bridge rectifier, an EMI filter, and a capacitor that is less than 1 ?F. The single switch is electrically connected to the active PFC module, and a primary winding of the transformer is electrically connected to the active PFC module. The microcontroller provides a PWM signal to control the switching state of the single switch, so that the active PFC module transforms AC frequency from less than 300 Hz into over 30,000 Hz and outputs a rectified AC voltage waveform. The EMI filter blocks high electromagnetic frequencies and the capacitor smooths a variation in the rectified voltage waveform and output the smoothed rectified voltage waveform to the active PFC module.

Abstract: A digital AC/DC power converter comprises an active PFC module, a single switch module having a single switch, a power output module having a transformer, and a digital control module having a microcontroller. The single switch is electrically connected to the active PFC module, and a primary winding of the transformer is electrically connected to the active PFC module. Moreover, the microcontroller provides a PWM signal to control the switching state of the single switch, so that the active PFC module transforms AC frequency from no more than 300 Hz into at least 30,000 Hz and outputs a rectified AC output voltage waveform to improve power factor.

Abstract: A standby circuit and device to reduce power consumption of appliances in standby mode comprise a power regulator, a power detecting circuit, and a HIC module. The HIC module can control the power regulator to turn off when a detected power consumption of a load is within a predetermined power consumption range.

Abstract: An acousto-optic audio signal cable includes an audio wire cluster, a light emitting diode marquee light wire or a light emitting diodes light-emitting light string or an electroluminescent cable, a transparent or light-transmitting insulating layer, and an acousto-optic controller. The light emitting diode marquee light wire and the audio wire cluster, or the light emitting diodes light-emitting light string and the audio wire cluster, or the electroluminescent cable and the audio wire cluster are integrated into a wire cluster. The transparent or light-transmitting insulating layer wraps the integrated wire cluster. The acousto-optic controller includes a sampling amplifier circuit component, an A/D conversion circuit component, a microprocessor, and an output driver coupled in sequence. An input terminal of the sampling amplifier circuit component is coupled to the audio wire cluster. The output driver is coupled to the light emitting diode marquee light wire.

Abstract: A universal serial bus (USB) connector includes a case, an insulation tongue, a first row of electric coupling pins mounted to top surface of the installation tongue, and a second row of electric coupling pins mounted to bottom surface of the insulation tongue. Each row of electric coupling pins are spaced in a horizontal direction of the insulation tongue. The electric coupling pins mounted on the top surface of the insulation tongue and the electric coupling pins mounted on the bottom surface of the insulation tongue are reversely and symmetrically arranged by type. The insulation tongue is movable along a vertical direction by deforming the electric coupling pins. The insulation tongue is movable along a vertical direction by deforming the electric coupling pins. An electronic device includes a main body and the USB connector installed to the main body.

Abstract: The invention provides an LED lighting device having a plurality of LED modules. Each LED module includes a housing structure, a plurality of LEDs disposed on the housing structure and a power converter that provides power to the LEDs. Each power converter of the LED modules operates independently. The LED lighting device of the present invention is more difficult to fail and may effectively reduce maintenance costs.

Abstract: A universal serial bus (USB) connector includes a case, an insulation tongue, a plurality of spaced electric conduction bars installed to the insulation tongue, a resilient supporting pole connected between the insulation tongue and the case, and two rows of electric coupling pins respectively located above and below the insulation tongue. The electric conduction bars are spaced in a horizontal direction of the insulation tongue. The top surface of each electric conduction bar faces the corresponding electric coupling pin locating above the insulation tongue, and the bottom surface of each electric conduction bar faces the corresponding electric coupling pin locating below the insulation tongue. The electric coupling pins locating above the insulation tongue and the electric coupling pins locating below the insulation tongue are reversely and symmetrically arranged by type.

Abstract: A universal serial bus (USB) connector includes a case, an insulation tongue, a plurality of spaced electric conduction bars installed to the insulation tongue, a resilient supporting pole connected between the insulation tongue and the case, and two rows of electric coupling pins respectively located above and below the insulation tongue. The electric conduction bars are spaced in a horizontal direction of the insulation tongue. The top surface of each electric conduction bar faces the corresponding electric coupling pin locating above the insulation tongue, and the bottom surface of each electric conduction bar faces the corresponding electric coupling pin locating below the insulation tongue. The electric coupling pins locating above the insulation tongue and the electric coupling pins locating below the insulation tongue are reversely and symmetrically arranged by type.

Abstract: A power transmitting apparatus for digitally controlling voltage and current of alternating current (AC) includes an input part, an output part, and a digital control part. The input part has a filtering protection module and a semiconductor switch module connected to the filtering protection module. The filtering protection module has an input interface for inputting an AC signal from a power source. The output part has a filtering module and a voltage and current feedback module connected to the filtering module. The voltage and current feedback module has an output interface for outputting the AC signal from the input part. The filtering module is connected to the semiconductor switch module of input part. The digital control part has a microcontroller unit (MCU) electrically connected to the filtering protection module, the semiconductor switch module, and the voltage and current feedback module, respectively.

Abstract: A digital AC/DC power converter comprises an active PFC module, a single switch module having a single switch, a power output module having a transformer, and a digital control module having a microcontroller. The single switch is electrically connected to the active PFC module, and a primary winding of the transformer is electrically connected to the active PFC module. Moreover, the microcontroller provides a PWM signal to control the switching state of the single switch, so that the active PFC module transforms AC frequency from no more than 300 Hz into at least 30,000 Hz and outputs a rectified AC output voltage waveform to improve power factor.

Abstract: The invention provides an LED lighting device having a plurality of LED modules. Each LED module includes a housing structure, a plurality of LEDs disposed on the housing structure and a power converter that provides power to the LEDs. Each power converter of the LED modules operates independently. The LED lighting device of the present invention is more difficult to fail and may effectively reduce maintenance costs.

Abstract: A power transmitting apparatus for digitally controlling voltage and current of alternating current (AC) includes an input part, an output part, and a digital control part. The input part has a filtering protection module and a semiconductor switch module connected to the filtering protection module. The filtering protection module has an input interface for inputting an AC signal from a power source. The output part has a filtering module and a voltage and current feedback module connected to the filtering module. The voltage and current feedback module has an output interface for outputting the AC signal from the input part. The filtering module is connected to the semiconductor switch module of input part. The digital control part has a MCU control module electrically connected to the filtering protection module, the semiconductor switch module, and the voltage and current feedback module, respectively.

Abstract: The invention provides a system and a device for reducing standby power consumption. The system for reducing standby power consumption, comprises a power regulator, a power detecting circuit and a HIC module, and the HIC module is controlled by a MCU to efficiently reduce standby power consumption.