I work with Valves (Tubes) quite alot and i am planning to build a variable HV bench supply (600v, 500mA).
I am planning to use a step up transformer, controlled by a multivibrator such as a CD4047 and Vary the voltage and Current by limiting the low voltage to the primary side of the transformer using an lm723.
I am going to use an LCD display, Controlled by arduino, however, i thought to myself- why not use arduino to also run the Multivibrator and low voltage and current limiting?
Can anyone point me in the right direction here as to how to build a sketch-I'm particularly lost as to how I could control current flowing through a pass transistor, using arduino.
Thanks in advance for your help.