10 Item Items
The circuit is a discrete BJT voltage regulator with a 7‐10V input and a 3.3V output. The BJT is controlled by a TL431 shunt regulator. C1 and R5 provide frequency compensation, R2 is the injection transformer terminating resistor and R3 and R4 are the output voltage sense divider. Two different output capacitorscan be selected using S1‐1 and S1‐2.
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