Searching for a Unicorn Part 2: Generating a Good Signal Source

In this second article, Brian Lowe (Belleson LLC) continues his search for the Unicorn of "Measuring Voltage Regulator Ripple Rejection," this time focusing on the test fixtures. Testing a voltage regulator with exceptionally good performance requires an even more exceptional signal source and measurement setup to measure sub-microVolt ripple across a wide frequency range. Complementing the final article, Jan Didden, offers an informative sidebar about super regulators. This article was originally published in audioXpress, June 2019.

In this article Brian Lowe shares a fascinating journey in his search for a "Unicorn" that is measuring voltage regulator ripple rejection - or power supply rejection ratio (PSRR). Lowe is the founder and principle engineer at Belleson, LLC, and he has devoted a lot of time to this fascinating "quest." This article was originally published in audioXpress, May 2019.

Microchip Technology announced the new Explorer 16/32 Development Board for designing with 16-bit and 32-bit PIC microcontrollers. This new board is offered at a reduced cost from Microchip’s popular Explorer 16 Development Board and comes with an integrated programmer/debugger and several new features that address the latest embedded systems design needs. The board provides a flexible, convenient and easy-to-start tool while being backwards compatible to the classic Explorer 16 Board.