Working Range and Design of a Static Constant-Current Transformer

The subject of the paper is a novel constant-current device. A given constant-current transformer entails limitations on the stabilized current, on the load resistance for a given stabilized current, on the counter EMF, and on the supply voltage; these limitations are analyzed and relevant design relations are established. A universal normalized design diagram is derived and plotted. A design example is worked out in detail using the theoretical expressions derived. The theoretical relations are compared to experimental ones obtained from tests on many constant-current devices.