• Past Posts

    EEVBlog #1119 – Designing a 1kV Isolated Oscilloscope

    Bart Schroder from Cleverscope talks about the challenges in designing the world’s highest performance isolated oscilloscope. Measurement demo on a 500V MOSFET H-Bridge and how to accurately probe it. Then a teardown and walk through of the design of the new CS448 1kV 4CH 200MHz 14bit isolated oscilloscope and the ...

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    EEVblog #1118 – Why Are Studio Monitors Noisy?

    Why do many powered studio monitor speakers have a low level audible background noise? This is an issue with many big and popular brand monitors like KRK, Yamaha, JBL, Alesis and many others Time for some investigation on the KRK Rokit 6 studio monitor speakers to track down where the ...

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    EEVblog #1117 – PCB Power Plane Capacitance

    Are power planes in a 4 layer PCB any good as a capacitor? Can it work as one big bypass capacitor? A look at an discussion on PCB layer stackups, and some measurements on 4 and 8 layer PCB power planes with different prepreg thicknesses and how well they work ...

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    EEVBlog #1116 – The Capacitance Multiplier

    Circuit building block time. The capacitance multiplier and how it gives almost negligible power supply ripple compared to a voltage regulator. Whiteboard theory and then some bench demonstrations and experiments. Plus a twist at the end that proves that the “Capacitance multiplier” is perhaps one of the most mis-named circuits ...

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    EEVblog #1115 – Traps In Chips – And the 7660

    Dave looks at some traps in chips and their modes of operation. In this case the TI LM2776, a look a the classic 7660 charge pump voltage inverter, and output ripple and ways to reduce it. Parametric searching, and a look at some interesting rail inverters. The uSleeve Forum HERE ...

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