on adjust lines 114 and 116 the adjust voltage on line 114 is determined by a first voltage divider that divides the output voltage of regulator 102 which is available on line 120 the first voltage divider includes a resistor 115 that extends between lines 120 and 114 and a second resistor 117 that extends from the adjust line 114 to ground the voltage on adjust line 116 is determined by a second voltage divider that divides the output voltage of regulator 104 which is available on line 122 the second voltage divider includes a resistor 119 that extends between lines 122 and 116 and a second resistor 121 that extends from adjust line 116 to ground the first and second voltage dividers include additional elements that are subsequently described referring to fig1 a the voltage on adjust line 114 sets the voltage from the regulator 102 by increasing the voltage on adjust line 114 the voltage on line 120 can be decreased to that end the first voltage divider includes a resistor 123 that can be selectively switched between lines 114 and 120 by a transistor 124 the gate 125 of transistor 124 is pulled high by a resistor 126 as long as the gate remains high the transistor 124 is on and the resistor 123 is switched into operation to decrease the output voltage by reducing the voltage drop between lines 120 and 114 resistor 130 resistor 132 and transistor 134 impact the second voltage divider in the same manner as resistors 123 and 126 and transistor 124 impact on the first voltage divider still referring to fig1 a the output voltage of regulator 102 is applied to ram 150.