4 ms·
They should have an NTC for inrush limiting.
by Ballas 5y ago
They should have an NTC for inrush limiting.
- newaccount74 5y agoHow long do those NTCs take to reset? Maybe that explains why the breaker trips after I turn it back on after a power failure -- if those NTCs are still warm, they would not limit the inrush current.
- formerly_proven 5y agoModern high efficiency PSUs should have no problem with this, because their active PFC limits input current. NTCs also reduce efficiency and don't work when toggling power, unless you add a relay to short it out. They're a hack.
- asddubs 5y agoif you're gonna short it out, you can just use a resistor though
- formerly_proven 5y agoYou need to use an NTC that'll stay within power limit under load to avoid a fire hazard when the relay doesn't work; if you try to do the same with a normal resistor you need large and expensive power resistors.
- deleted 5y ago[deleted]