Author Archives: DP

App note: Measure capacitance of Class-II and Class-III ceramic capacitors

in app notes by DP | 0 comments

KEMET’s app note(PDF) on the methods used on measuring capacitance of different classes of ceramic capacitors. This application note addresses proper capacitance measurement techniques of Class-II (X7R/X5R) and Class-III (Y5V/Z5U) ceramic capacitors and identifies common errors that are made upon … Read more

App note: Standalone Linear Li-Ion battery charger with thermal regulation in ThinSOT

in app notes by DP | 2 comments

Standalone Linear Li-Ion battery charger with thermal regulation in ThinSOT application note (PDF!) from Linear: The LTC4054 is a single cell lithium-ion battery charger using a constant-current/constant voltage algorithm. It can deliver up to 800mA of charge current (using a good … Read more

Modifying a Tower SG90 servo for continuous rotation with potentiometer position sensing, Part 1: Investigation and continuous rotation

in robotics by DP | 3 comments

Keith wrote an article on modifying a Tower SG90 servo for continuous rotation with potentiometer position sensing: On its own, the servo takes power, ground, and a position input and moves the shaft within a range of rotation to match the angle … Read more

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