本发明公开了一种恒流LED驱动电路,包括:选择器,误差放大器,振荡器,斜率补偿模块,比较器,触发器和驱动器. The present invention discloses a constant current LED driver circuit, comprising: a selector, an error amplifier, oscillator, slope compensation module, comparators, flip-flops and a driver. 本...
Constant Current LED Drivers or Constant Voltage LED Drivers are two main types for LED drivers. The definitions of the two types of drivers, their applications, advantages and disadvantages will be discussed here. At the same time, we also introduced th
The LED constant-current source provided by the embodiment of the invention comprises a direct-current input end T1, the LED lamp T2, an MOS (Metal Oxide Semiconductor) tube T3, a DC (Direct-Current)/DC circuit T4, a constant-current control circuit T5, a controller T7 and a voltage ...
There are many ways to limit the current to an LED. Several techniques are described below for a supply voltage ofVsand a desired (maximum) current ofIf. Five simple ones are shown above inFalstad Circuit SimulatormarkedAtoEwith four of them featuring on/off control. Signals from 3.3V GPIO...
DC12-48V 300mA 350mA 450mA 600mA 700mA 800mA 900mA 1000mA 4 Zones Remote Control CC Constant Current LED Controller, You can get more details about DC12-48V 300mA 350mA 450mA 600mA 700mA 800mA 900mA 1000mA 4 Zones Remote Control CC Constant Current LED C
330ma 300ma 240ma 200ma 180ma 150ma 120ma constant current led driver 3w 4w 5w 7w 6W 9W 12W 15W 18W 24W LED power supply $0.68 - $1.16 Min. order: 10 pieces Easy Return led bulb driver circuit 8w 12w 28w 36w 320ma output 24-105v no flicker led driver for led bulb light $0....
wherein the direct-current input end T1 is connected with the LED lamp T2; the LED lamp T2, the MOS tube T3 and the DC/DC circuit T4 are sequentially connected; the MOS tube T3 is connected with one end of the DC/DC circuit T4; the other end of the DC/DC circuit T4 is grounded...
.pairuigroup Page: 1 / 7 Date: 12/18/2014 *Subject to change without prior notice. Constant current LED Drivers For outdoor use LGSU-120C Series, 120Watt FEATURES: Constant current output High Efficiency Universal AC input: 90-305VAC Active power factor correction Short circuit, over voltage...
a本文设计的驱动电路为有利于LED驱动的反激型开关电源,对主电路、控制电路、反馈电路、高频变压器等进行了详细的设计。通过恒流反馈控制电路使一般恒压控制芯片实现恒流功能,提高开关驱动电源的性价比。 This article designs the actuation electric circuit for is advantageous instead stirs up the switching power ...
Over-Current and Short Circuit Protection with Auto Recovery Environmental Speci cations Minimum Starting Temp: -30ºC Maximum Case Temp. 90°C Storage Temperature: -40ºC to +85ºC Humidity: 5% to 95% Cooling: Convection Sound Rating: Class A Vibration Frequency: 5-55 Hz/2g, 30 minu...