Linear regulated power supply circuit

The output voltage of  　　the circuit in Figure (a) is adjusted by the potentiometer Rp and has linear adjustment characteristics. Figure (b) shows the relationship between the output voltage deviation Ua and the load current Ia (0-70mA), and Figure (c) shows the relationship between the output voltage deviation Ua and the input voltage Ue.

　　Main technical data:

　　Input voltage: Ue=11~20V

　　Output voltage: Ua=8~18V

　　Maximum output current: Ia=70mA

　　Voltage regulation rate (Ue=1V, Ue=15V, Ua=10V, Ia=40mA);

　　Load regulation rate (Ia=0~60mA, Ue=15V, Ua=10V);

　　Dynamic internal resistance: R1=60m ohm

　　Temperature coefficient of output voltage : 3~5X10-5 V/K