You can set up an LM317 as a constant current supply with a simple power resistor between the output pin and adj pin to set current and take your CC output from the adj pin.
Now, if I wanted to also have a switch mode (and constant current) supply, can I simply switch the input voltage on/off at the LM317 input?
Say 100khz or so with an on/off pass transistor at the LM317 input?
And I suppose a choke on the output?
Now, if I wanted to also have a switch mode (and constant current) supply, can I simply switch the input voltage on/off at the LM317 input?
Say 100khz or so with an on/off pass transistor at the LM317 input?
And I suppose a choke on the output?