The J2103A Power Stage Isolator is a general device that replaces feedback control circuits to control the power output circuit (Power stage), also, known as the power stage plant. The power supply plant gain represents the amplification factor of the power supply unit within this feedback control loop. With the J2103A, you can measure the frequency response of the power output circuit (Power stage) before designing the feedback control circuit and design the feedback control circuit according to the actual measurement results. The whole design process can almost be completed at one time, with the integration of the power output circuit (Power stage) and the feedback control circuit relatively accurate the design cycle can be greatly shortened.

The J2103A can be used with almost any power circuit that requires feedback control. Its feedback input (Vin) and reference voltage (Vref) use differential inputs without reference ground problems. Therefore, designs with isolated or non-isolated power sources, switching or linear power supplies, and positive or negative voltage feedback can all use the J2103A.

The plug-and-play J2103A simplifies accurate open-loop and control loop gain parameter measurement quickly and easily while using the Picotest P9611A/P9610A power supply with an FRA, such as the OMICRON Lab Bode 100 VNA. This is a powerful tool for power supply designers to be able to quickly access hidden or difficult to bound parameters for their power supply design or to support accurate parameter testing for state-space average VRM model development.

The DB102A is a useful demo board that is available to support training and setup experimentation for the J2103A.