A FET constant current source is a type of active circuit that uses a field-effect transistor to supply a constant amount of current to a circuit. Constant current sources and current sinks (the ...

Simple 100mA Constant Current Source using Transistor. In this project, we will build a simple transistor constant current source generator using only 4 components. It is a very inexpensive circuit ...

Infineon Technology has released the second device in the new generation BCR family - BCR431U LED Driver ICs. The new constant current linear LED driver IC provides low voltage drop performance for ...

If you extend the tester to handle more LEDs, you must add another Zener diode for each LED position. The test current that ? ows through the LEDs is held reasonably constant by FET T1, independent of ...

High-power LED lighting driver technology is one of the key issues of its application and development. Through analysis of the high-power LED light source's electrical characteristics and performance ...

The design of a 3W constant current LED driver based on flyback structure with primary side control technology is proposed, which eliminates the opto-isolated feedback and secondary regulation ...

Continue reading “LED Tutorial Demystifies Several Control Techniques” → Posted in LED Hacks Tagged constant current , driver , mosfet , transistor Posts navigation ...

Fig. 1: Torchlight circuit in normal mode Bootstrap mode. The circuit diagram of the LED Torchlight Circuit in bootstrap mode is shown in Fig. 2. In this mode, the circuit requires two additional ...