Abstract: A power supply device includes a power conversion module and a power regulating module. The power conversion module is configured to convert an AC electric power into a DC electric power. The power regulating module includes a microprocessor, a voltage-dividing resistor, a constant-voltage regulator, and a constant-current regulator. The voltage-dividing resistor is electrically connected to the setting resistor and the microprocessor. The constant-voltage regulator is electrically connected to the power conversion module, the dividing resistor, and the setting resistor; The constant-current regulator is electrically connected to the power conversion module and the microprocessor.

Abstract: A power supply device includes a power conversion module and a power regulating module. The power conversion module is configured to convert an AC electric power into a DC electric power. The power regulating module includes a microprocessor, a voltage-dividing resistor, a constant-voltage regulator, and a constant-current regulator. The voltage-dividing resistor is electrically connected to the setting resistor and the microprocessor. The constant-voltage regulator is electrically connected to the power conversion module, the dividing resistor, and the setting resistor; The constant-current regulator is electrically connected to the power conversion module and the microprocessor.

Abstract: A light emitting diode (LED) driving device with control based on LED setting resistance is disclosed. The LED driving device is applied to an LED lighting fixture having a setting resistor and is configured to modulate output voltage and output current according to the setting resistor to fit the power requirement of the LED lighting fixture. The LED driving device includes a power conversion module and a driving module. The driving module includes a microprocessor and controlling unit. The microprocessor is electrically connected to the LED lighting fixture for sensing the setting resistor and generates a controlling signal in accordance with the sensed setting resistor to the controlling unit. The controlling unit is electrically connected to the microprocessor and the power conversion module and configured to drive the power conversion module to modulate output current and output voltage according to the controlling signal.

Abstract: A light emitting diode (LED) driving device with control based on LED setting resistance is disclosed. The LED driving device is applied to an LED lighting fixture having a setting resistor and is configured to modulate output voltage and output current according to the setting resistor to fit the power requirement of the LED lighting fixture. The LED driving device includes a power conversion module and a driving module. The driving module includes a microprocessor and controlling unit. The microprocessor is electrically connected to the LED lighting fixture for sensing the setting resistor and generates a controlling signal in accordance with the sensed setting resistor to the controlling unit. The controlling unit is electrically connected to the microprocessor and the power conversion module and configured to drive the power conversion module to modulate output current and output voltage according to the controlling signal.

Abstract: The present invention provides a light-emitting diode (LED) drive control circuit having an input terminal and an output terminal. The input terminal and a switching device are coupled in series between power supply terminals. The output terminal is coupled to an LED. The switching device includes a single-pole double-throw switch. A first branch of the single-pole double-throw switch is a wire. A second branch of the single-pole double-throw switch includes a resistor and an indicator in series. The circuit includes a semiconductor switch that is either on or off. When the single-pole double-throw switch is switched to the first branch, the semiconductor switch is on and turns on the LED. When the single-pole double-throw switch is switched to the second branch, the semiconductor switch is off and turns off the LED. The circuit can effectively turn the LED on and off to avoid power leakage and slight emission of light.

Abstract: An alternating light diode device is provided and includes a substrate, a rectifier and a light emitting diode. The rectifier, a bridge rectifier with four diodes, includes a first alternating terminal and a second alternating terminal receiving an alternating signal and a first electrode and a second electrode outputting a rectified signal. The light emitting diode is electrically connected with the first electrode and the second electrode. Furthermore, the rectifier and the light emitting diode are mounted on the hexagonal star-shaped aluminum substrate wherein the rectifier is arranged around the substrate.

Abstract: A lighting system is provided. The lighting system includes a plurality of lamp modules connected in series, wherein each of the lamp modules includes a decoder and a lamp. When a first lamp module of the lamp modules receives a trigger signal, a first decoder of the first lamp module configures a first identification code for a first lamp of the first lamp module, and provides a configuring signal to a second decoder of a second lamp module of the lamp modules to configure a second identification code for a second lamp of the second lamp module. The second lamp module is a next lamp module following the first lamp module.

Abstract: A light emitting diode (LED) circuit is provided. A light emitting diode (LED) circuit includes an alternating current (AC) source, a rectifier, a voltage-limiting circuit, and an LED module. The AC source provides an AC voltage, and the rectifier generates a first rectified voltage according to the AC voltage. An upper limit of the first rectified voltage is substantially restricted at a rated voltage by the voltage-limiting circuit, and the voltage-limiting circuit generates a second rectified voltage according to the first rectified voltage, in which the second rectified voltage is lower than the rated voltage. The LED module receives the second rectified voltage. Thereby, when the AC voltage is unstable, fluctuation of current flowing through the LED module can be substantially reduced.

Abstract: An alternating light diode device is provided and includes a substrate, a rectifier and a light emitting diode. The rectifier, a bridge rectifier with four diodes, includes a first alternating terminal and a second alternating terminal receiving an alternating signal and a first electrode and a second electrode outputting a rectified signal. The light emitting diode is electrically connected with the first electrode and the second electrode. Furthermore, the rectifier and the light emitting diode are mounted on the hexagonal star-shaped aluminum substrate wherein the rectifier is arranged around the substrate.