This system design, an ultra-stable voltage reference for a high power constant current source, is described in Part one and Part two of this series. Here is what Pettis said about the following story ...

Typical Bob Pease stuff to design something that didn’t exist. Here’s a picture of Bob and the widget he was designing: The widget was an ULTRA stable voltage reference and extremely stable, high ...

Bob Pease, explains how to design several different circuits for limiting currents as high as 300 mA using an LM317, LM334N, IRF640 or IRF740. The other day I was studying a current limiter using ...

1. Bob Pease built this varactor-input op-amp out of discrete components, based on an old design of Jim Williams. A varactor bridge input lowers the input bias current below a picoampere.

The designer is revealed as the legendary [Bob Pease], and the transistors take us back to the semiconductor physicist [Jean Hoerni], inventor of the planar transistor and one of the famous eight ...