The invention relates to a light-emitting diode (LED) flasher circuit. An existing flasher circuit is huge in power consumption, instable in voltage, instable in switch performance of the circuit, and short in flashing lighting time. The LED flasher circuit comprises an LED lamp, and is ...
The utility model discloses light -emitting diode (LED) driving circuit is through using integrated control chip U1, and design suitable connected peripheral circuit, through adding diode D1 and diode D3, spike voltage clamper to the safe value that transformer coil produced because of the ...
A light-emitting diode drive circuit comprising a current feeding circuit (3) having a first (16) which receives at the base thereof a first drive pulse signal (S3) sent from a signal receiving circuit, and a second transistor (15) of which the collector is connected to a light-emitting ...
LED (light-emitting diode) drive control circuitdoi:CN102143640 AThe invention discloses a LED (light-emitting diode) drive control circuit, which comprises an LED load sampling port, a switch port and a comparison port. An error amplifier module compares the LED load sampling voltage with the...
Light Emitting Diode Circuit for Biasing Most of the LEDs have voltage ratings from 1 volt-3 volt whereas forward current ratings range from 200 mA-100 mA. LED Biasing If the voltage (1V to 3V) is applied to the LED, then it functions properly due to the flow of current for the appli...
LED (light-emitting diode) drive circuit with high efficient and high power factor 本发明涉及一种高效率,高功率因数的LED驱动电路,用以驱动一LED装置,其利用一LED电流检测电路与所述LED装置连接,用以产生表征所述LED装置的驱动电流和期望驱动电流之间... 陈伟 被引量: 0发表: 2012年 Patent Issued for Dri...
A light-emitting-diode drive circuit for driving n (where n is a natural number equal to or greater than two) light-emitting diodes (LED to LEDn) connected in series includes n′ (where n′ is any natural number equal to or greater than two but equal to or less than n; here, n′...
A light-emitting diode drive circuit comprising a current feeding circuit (3) having a first (16) which receives at the base thereof a first drive pulse signal (S3) sent from a signal receiving circuit, and a second transistor (15) of which the collector is connected to a light-emitting ...
The LEDs (6,7) supplied with current from an AC source (1) via an amplifier (2) and bias restorer (3) are arranged in two antiparallel branches (4,5), jointly connected to earth (9) via a storage capacitor (8). During one half-cycle of the AC waveform, one branch (4) of diod...
A light-emitting diode circuit and a light-emitting diode driving circuit are disclosed. The light-emitting diode driving circuit includes the DC-DC converter and the switch circuit. The DC-DC converter converts a DC voltage to the driving voltage for driving the light-emitting diode. One end...