Mute
Eletrônica Aplicada
⚡ Você sabe por que muitas fontes chaveadas usam um NTC logo na entrada? Quando a fonte é ligada, o capacitor do barramento DC está descarregado e, nos primeiros instantes, pode se comportar praticamente como um curto para a rede. Isso provoca uma corrente de partida muito alta, conhecida como inrush current. É aí que entra o termistor NTC. 🔹 Quando está frio, sua resistência é maior, ajudando a limitar esse pico inicial de corrente.
Follow
120
1
21
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