LED DC Driver without Inductor

LED DC Driver Circuit Diagram

Circuit                                                  Discreption
PWM Based LED Driver

LED driver using PWM Signal to control current

 

 
 
 
 
 
 

 

LED DC Driver with Inductor

LED DC Driver Circuit Diagram

Circuit                                                  Description
 10 Watt LED driver

 

This circuit is a 10-watt LED driver using LT3492 to operate as a constant-current source and is ideal for driving LEDs. The LT3492 works in buck, boost or buck-boost mode. The LT3492 uses a fixed frequency, current mode architecture resulting in stable operation over a wide range of supply and output voltages. A frequency adjust pin allows the user to program switching frequency between 330 kHz and 2.1 MHz to optimize efficiency and external component size.

 1A μModule LED driver

 

This circuit is a LED driver using IC LTM8040. LTM8040 is a fixed frequency 1A step-down DC/DC μModule regulator designed to operate as a constant current source. Internal circuitry monitors the output current to provide accurate current regulation, which is ideal for driving high current LEDs. High output current accuracy is maintained over a wide current range, from 35mA to 1A, allowing a wide dimming range over an output voltage range of 2.5V to 13V. 

 
 
 
 
 
 

 

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