To drive a MOSFET requires more than merely a logic level output, there’s a requirement to charge the device’s gate which necessitates a suitable buffer amplifier. A variety of different approaches ...

Since its invention over a half-century ago by Hanz Camenzind at Signetics, the familiar 555 analog timer (in league with its updated pin-compatible CMOS descendants) has become an iconic design ...

This article is part of the Ideas for Design Series: Vol. 3, No. 1 The original bipolar 555 timer, the NE555, is excellent for driving a power MOSFET’s gate. Newer CMOS versions such as the 7555, ...