Inrush current limiter

In my last posting, relating to the design of an isolated power supply - Designing an isolation power supply - I identified that there could be an inrush current problem... (There most definitely was! The 2 A slow blow fuses didn't stand a chance with the 300 VA toroidal transformer having a primary winding DC resistance of 3.92 [...]

By | 2017-02-04T21:51:42+00:00 Thursday, 24 July 2014|Tech Note|0 Comments

Isolation supply design

One piece of equipment that the lab has been lacking is an isolation transformer. Such a transformer is useful for testing circuits/devices such that they're "isolated", as the name of course suggests. A good overview of why one might do / needs to do this is provided on Dave Jones' EEVBlog: EEVblog #279 – How NOT [...]

By | 2017-02-04T22:08:36+00:00 Wednesday, 23 July 2014|Tech Note|0 Comments