Micro power stabilizer with low consumption. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Micro power stabilizer with low consumption. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Surge Protectors

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Some ham designs require micro-power regulators that consume microamps in stabilization mode. On fig. 1 shows a schematic diagram of such a stabilizer with an internal current consumption of 10 μA and a stabilization current of 100 mA.

Micro power stabilizer with low consumption

For the elements indicated in the diagram, the stabilization voltage is Uout \u3,4d 1 V, to change it, instead of the HL522 LED, you can turn on KD0,7 diodes in series (on each voltage drop is 1 V: on transistors VT2, VT0,3 - 30 V). The input voltage of this stabilizer (Uin) is not more than XNUMX V. Transistors with a maximum gain must be used.

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Comments on the article:

Anatoly
It is necessary to swap the collector and emitter vt2.

a guest
I'm pretty sure the circuit isn't working. The 2nd transistor is either incorrectly connected or not of the same conductivity.

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