App note from IXYS on their battery operated surge voltage and inrush current protection circuit implementation. Link here (PDF) Primary concerns with battery-operated devices include battery protection from inrush and short circuit currents caused by connected load, and load protection from voltage spikes when battery load dump occurs, which may cause significant voltage stress on […]
Tag Archives: inrush current
App note: Digital inrush controller
App note from IXYS about their unique digital inrush controller using Zilog’s 8-bit Z8F3281 MCU. Link here (PDF) Digital control allows distinctive solutions to control inrush current in typical AC-DC rectifier with capacitive load by limiting capacitor pre-charge current to a predetermined value at each half sine-wave cycle. Capacitor charge is spread over a number […]
App note: Measuring inrush current
Inrush current evaluation from Aimtec. Link here In AC/DC power converters beyond a few watts, during the initial application of power an excessive inrush current will flow when the input capacitors are suddenly charged. If unhindered the inrush current can easily exceed 50 A at the peak of the AC cycle and severely stress the […]