I want to understand how the circuit 1 and 2 drawn below act as constant current source. Please explain the concept
My requirement of current source is such that-
(1) compliance voltage=50V.
(2) the load the current source drives=1K-2K range. Hence i want the output resistance much higher than this value.
how do i choose the transistor /other components to ensure (1) and should i connect a buffer circuit to obtain the output imepance or are these circuits sufficient?
My requirement of current source is such that-
(1) compliance voltage=50V.
(2) the load the current source drives=1K-2K range. Hence i want the output resistance much higher than this value.
how do i choose the transistor /other components to ensure (1) and should i connect a buffer circuit to obtain the output imepance or are these circuits sufficient?