The TL431 is a three-terminal programmable shunt regulator that implements Zener-like references with low temperature coefficients. Its output can be programmed from the internally set reference of ...

In a typical voltage-regulator application, adding two external resistors, R A and R B, sets the shunt-regulated output voltage at the lower end of load resistor R S (Figure 1b). Figure 1 Despite the ...

You either put the LEDs in series (which raises the overall voltage drop, ... A current source with TL431, a BC337 and 2 resistors, and a shunt regulator with a TL431 and a BD140 and 3 Resistors.

The TL431 is a well-known ... the dc gain will be provided by the TL431. It can be wired in a shunt regulator configuration ... Keeping the 8.2-kΩ resistor in series with the TL431 and a ...

Inside the TL431, [Ken] discovers that transistors aren’t made up of the three layer NPN or PNP sandwich we’ve come to know and love. In fact, the base isn’t even in the middle.