Using TLC271 and some common electronic components can be designed a very simple adjustable power supply using conventional electronic components. This TLC271 16 volts variable power supply allows voltage input up to 30 volts and provides output voltage between 3 and 16 volts.
Reference voltage is obtained from a red LED to be running the current, no more, no less than 5 uA.
R1 and R4 with values given in the scheme, the output voltage variation will be between 3-8 V.
To achieve higher output voltages, up to a maximum of 16 V, R4 will increase by 200 k / V. And resistance value of R1 must be increased as long as the D1 current falls below 5 mA.
Maximum output current is dependent mainly on permissible dissipation of T2 and, therefore, to some extent, the difference between input voltage and the output.
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